| Program | Description | Programmers | Type | Appears on |
|---|---|---|---|---|
| "BOLD" Character Subroutine | A two-author machine code hack from 1985 that rewrites the system font in RAM to produce genuinely bold characters — toggled on or off at runtime with a single POKE. | Frank Bouldin (W5GAA) | Program | Fort Worth TS2068 Club Library Tape Timex Sinclair Public Domain Library Tape 2001 |
| 128 Colors | A complete 128-color display test cycles every ink, paper, and bright combination using a clever checkerboard UDG that visually blends foreground and background hues. | Mark Miller | Program | CATS Library Tape 11 |
| 15/20 Word Processor Program | A 15-page word processor with mailing-label printing, tape save/verify, and a self-installing machine code routine — all packed into one BASIC program from 1985. | Gerald W. Goegelein | Program | ISTUG Public Domain Library 8 |
| 2 Games | Two games in one package: challenge the computer at Rock-Scissors-Paper over ten rounds, then test how quickly you can hunt down keys on a QWERTY keyboard. | Tim Hartnell | Program | |
| 2 Voice Beep Example | A 49-byte relocatable machine code routine produces genuine two-voice beeper sound, with pitch and border colour controllable via direct POKEs from BASIC. | Eric Boisvert | Program | Byte Power February 1987 |
| 20 Tons | Collect rings across twenty puzzle screens while dodging crushing weights and hungry eaters — complete with a built-in level designer for creating your own challenges. | Program | ||
| 2068 Art | Two bouncing points trace 200 lines across the screen in an ever-changing geometric art display, then clear and restart with a new pattern. | David Kulp | Program | CATS Library Tape 11 Fort Worth TS2068 Club Library Tape |
| 2068 Assembler | A table-driven Z80 assembler written entirely in BASIC supports the full instruction set, symbol tables, forward references, and optional tape-based source merging. | Program | CATS Library Tape 8 | |
| 2068 BBS Program | A fully functional modem-driven bulletin board system with message storage, multi-mode reading, sysop chat, and embedded machine code serial I/O — all in BASIC. | Phillip Basford, Randy Gordon, Lucy Gordon | Program | |
| 2068 Buggy Software | A two-line DATA block loads Z80 machine code that hooks the interrupt system to animate an autonomous worm crawling across the display. | Thomas B. Woods | Program | |
| 2068 Disassembler and Monitor | A full Z80 disassembler and machine code monitor that decodes every opcode prefix, supports symbol tables loaded from tape, and outputs to screen or printer. | Bob Gilder | Program | CATS Library Tape 8 Timex Sinclair Public Domain Library Tape 2003 |
| 2068 Display Block Moves | A menu-driven screen capture utility that uses a POKEd Z80 LDIR routine to save and restore full or partial display regions to a RAM buffer. | Robert Hartung | Program | |
| 2068 EXROM Revision | User revision that modifies the EXROM that changes the dispatcher and bank-switching subsystem, plus the dispatch/fix tables. | ROM | ||
| 2068 fig-Forth | Implementation of fig-Forth; includes an editor and TS2068-specific words to support file and exiting to BASIC. | Ed A Worden | Program | |
| 2068 Graphics and Trig | An interactive trigonometry explorer draws labeled quadrant diagrams, parametric curves, and Lissajous figures using user-supplied SIN and COS multipliers with custom UDG graphics. | Andy Centek (WB8AHX) | Program | CATS Library Tape 9 Timex Sinclair Public Domain Library Tape 2004 |
| 2068 Month | Enter any month and year to get a neatly formatted calendar printout, complete with correct leap-year handling and a built-in printer prompt. | Cedric Bastiaans | Program | |
| 2068 Programmer's Toolkit AROS | A powerful eight-function programmer's toolkit combining a Z80 disassembler, tri-base calculator, UDG editor, tape header reader, and memory loader in one cartridge-based package. | Thomas B. Woods | ROM | |
| 2068 Test | A compact display demo cycles through all eight paper colors, prints the full character set in normal and inverse video, then draws grids and triple circles using PLOT, DRAW, and CIRCLE. | Program | ||
| 2068 Turboloader | Load machine code at a user-specified address and run tape transfers at variable baud rates up to 3500 baud with this configurable turbo tape utility. | Floyd Chrysler | Program | |
| 2068 Window | A machine code screen utility that lets you highlight any rectangular display region with new attributes while saving the originals for instant restoration via two USR calls. | David Ellis | Program | |
| 2068 Windows | A three-window demonstration system that uses machine code LDIR routines to save and restore screen regions, with UDG border graphics and user-definable window coordinates. | Paul Bingham | Program | |
| 21 | A Blackjack game with PLOT/DRAW card graphics and UDG suit symbols. | Program | Timex Sinclair Public Domain Library Tape 2001 | |
| 2Col LLIST | A companion instruction screen for a two-column BASIC listing utility, complete with load, run, and save commands for a 484-byte machine code routine. | Lloyd Painter | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 |
| 3 Axis Bar Chart | A 3D bar chart with solid bars, isometric projection, and a painter's-algorithm draw order renders a cosine-based mathematical surface in vivid color. | Program | CATUG Tape 0.0 0001 Long Island Sinclair Timex (LIST) User Group Library Tape #2 | |
| 3 Games | Three games in one listing—navigate a minefield, rally a Pong paddle, and steer a pixel car down a converging road—all from a single menu. | Program | ||
| 3-D | Draw freehand curves in 3D space with six-direction keyboard control, then replay or randomize your sketches with a perspective projection engine built entirely in BASIC. | Program | Timex Sinclair Public Domain Library Tape 2003 | |
| 3-D Maze | Explore a randomly generated first-person 3-D maze using typed commands, with perspective-drawn corridors and a live timer tracking your escape attempt. | Program | ISTUG Public Domain Library 5 SINCUS Exchange Tape 101 - Entertainment | |
| 3-D TicTacToe | A fully playable two-player 3D Tic-Tac-Toe game on a 3×3×3 cube, with isometric block-graphic display and cumulative win scoring across all 49 possible lines. | Program | ||
| 3D Animation | Animated demo. | Eric Boisvert | Program | Byte Power October 1986 |
| 3D Character Set | Enter up to seven characters and watch this program render them as pixel-scanned 3D block letters using PLOT and DRAW sequences for every lit pixel. | Algis Gedris | Program | |
| 3D DRAW | A wireframe 3D cube rendered via full rotation-matrix math, with trig-expression DATA statements and manual point-by-point edge drawing with screen clipping. | Nick Hampshire | Program | |
| 3D Draw | Sketch two cross-section curves live with the keyboard, then watch a 3D surface graph render itself across both axes from your input. | Program | CATS Library Tape 6 | |
| 3D Driver | Steer a UDG-rendered car down a perspective road while random drift fights your inputs — stay on track as long as you can to maximize your score. | Program | ISTUG Public Domain Library 8 SINCUS Exchange Tape 101 - Entertainment Timex Sinclair Public Domain Library Tape 2004 | |
| 3D Fractals | A fractal terrain generator builds a randomized 3D landscape through iterative midpoint displacement, then renders it as a projected wireframe with sea-level clipping. | Ted Knyszek | Program | |
| 3D Function Plot | A wireframe 3D surface plotter that reads its own BASIC source code from memory to display the current formula — and lets you change it live. | Program | ||
| 3D Shape | A full homogeneous-matrix 3D wireframe cube renderer, hand-coding rotation, scaling, and translation without any built-in 3D support—pixel by pixel. | Nick Hampshire | Program | CATS Library Tape 2 |
| 3D Tic Tac Toe | A fully strategic 3D tic-tac-toe game on a 3×3×3 grid, with three AI difficulty levels and all 49 possible winning lines tracked simultaneously. | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #2.2 SINCUS Exchange Tape 101 - Entertainment Timex Sinclair Public Domain Library Tape 2004 | |
| 3D Word | Clever pixel-sampling technique converts any seven-letter word into bold 3D block lettering, using the screen itself as a character ROM. | Program | ||
| 3D Words | Render bold 3D block letters on screen in three sizes, drawn pixel-by-pixel from the built-in font using PLOT and DRAW geometry tricks. | W. E. Walker | Program | CATS Library Tape 6 SINCUS Exchange Tape 102 - Utilities & Business |
| 3D-PLOT | A mathematical bell-curve surface rendered in 3D perspective with hidden-line suppression, followed by a mesmerizing animated cosine wave display. | Program | ||
| 3X Column | A clever number-formatting subroutine right-aligns decimal values across three columns, using user-defined functions to round and pad output automatically. | Algis Gedris | Program | |
| 3X3 Character | Create 3×3 graphics for use in your programs. | Eric Boisvert | Program | Byte Power November 1986 |
| 4 Patterns | Four pattern generators in one program — random symmetric plots, XOR line art, spiraling geometric polygons, and a user-driven turtle graphics engine — all menu-selectable. | Ted Knyszek | Program | |
| 4 Way Rotate | Rotate any user-defined graphic character 90 degrees in place — this BASIC program reads, transforms, and rewrites UDG pixel data live in memory. | Program | ||
| 5 Interesting Routines | Six utilities in one program — BASIC memory readers, custom input handlers, a machine-code error message printer, and a ROM integrity checker — all selectable from a menu. | Program | ISTUG Public Domain Library 8 | |
| 64 Column | A machine code–powered 64-column display mode with hardware scrolling turns a standard screen into a high-density text terminal driven by a BASIC typewriter loop. | Program | ||
| 64 Column | A machine-code-powered 64-column text editor. | Program | SINCUS Exchange Tape 102 - Utilities & Business | |
| 64 Column BASIC | Machine code driver that patches the display routines to render BASIC PRINT output at 64 columns, with TS2040 printer support and an interactive demonstration of the mode's capabilities. | Wes Brzozowski | Program | ISTUG Public Domain Library 8 SINCUS Exchange Tape 102 - Utilities & Business |
| 64 Column Print | Program utility to print up to 64 characters per line in normal video mode. Can be used with your own programs. | Eric Boisvert | Program | Byte Power December 1986 - January 1987 |
| 64 Column Utility | A machine code-powered utility squeezes 64 columns onto your printer, letting you type, display, save, and copy multi-page text documents from a single BASIC shell. | Stan Lemke | Program | |
| 78s | Calculate exactly how much interest you're owed back when paying off a loan early, using the time-tested Rule of 78s formula. | Program | ||
| A Fast Well-Behaved Pattern Flood Fill | A breadth-first patterned flood fill using a three-block circular queue on the hardware stack paints random circles with eight built-in 8×8 tile patterns. | Alvin Albrecht | Program | |
| ACZ General Ledger 2000 | A complete double-entry bookkeeping suite with journal entry, ledger detail, income statement, and balance sheet modules — all driven by machine code sorting and optional numeric keypad input. | Alan R. Czarnek | Program | |
| Addition 1 | A currency-style addition program that accumulates entered numbers into a running total, using a string-formatting subroutine that the author himself flagged as broken. | Algis Gedris | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 |
| AERCO 2068 Printer Driver V2 | A complete printer driver manager patches machine code in memory to support seven dot-matrix printers, with per-model escape sequences and a printer demonstration that LLISTs your own program. | Program | ||
| AERCO 2068 Printer Driver V2.1 | A complete printer driver configuration tool patches machine code at a fixed RAM address and POKEs printer-specific escape sequences for seven dot-matrix printer models. | Program | ||
| AERCO Patch | Patch utility modifies MTERM to work with the AERCO printer interface. | Dave Schoenwetter | Program | SINCUS Exchange Tape 102 - Utilities & Business |
| Aid | A full ELIZA-style therapy chatbot that matches keywords, swaps pronouns, and personalises every response with your name across a 20-exchange session. | Program | Miscellaneous Programs | |
| Air Defense | Stop bombs before they reach the city! 5 levels of play, each increasing in difficulty. | Kristian Boisvert | Program | Byte Power October 1986 |
| Airplane | Pilot a flight from London to one of ten world cities, juggling thrust, flaps, and rudder across multiple turns to nail a perfect landing and maximize your score. | Program | ISTUG Public Domain Library 7 | |
| ALGEBRA | A BASIC algebra grapher that draws a scaled coordinate grid and plots the parabola y = −x² + x with labeled Y-axis tick marks. | Program | ||
| Alien Blaster | Defend your planet by blasting two distinct alien types before five land — a BASIC shoot-em-up with custom characters, pixel-precise collision detection, and persistent high scores. | Program | ||
| Aliens | Pilot a lone spaceship over a jagged alien landscape and blast ground-based enemies in this horizontally scrolling shoot-'em-up from Canadian tape magazine Byte Power. | Kristian Boisvert | Program | Byte Power September 1986 |
| Aliens | Defend Earth from randomly spawning aliens using a joystick-controlled rocket launcher, with UDG sprites, multi-channel sound, and escalating difficulty levels. | Bob Redman | Program | SINCUS Exchange Tape 101 - Entertainment Timex Sinclair Public Domain Library Tape 2004 |
| Alternate Character Set | Generate a modified character set stored in RAM, then switch between normal and alternate fonts on the fly with a single POKE command. | Program | ||
| Amazi-Music | A music player with POKE-accessible controls for tempo, volume, and voice settings. | Eric Boisvert | Program | Byte Power December 1986 - January 1987 |
| Amazing | Can you find your way through a 9X9X9 maze? The computer will generate a maze then choose at random the exit and your position. | Kristian Boisvert | Program | Byte Power October 1986 |
| Ambush | Eliminate five hidden snipers before they shoot you down — a tense pixel-graphics ambush game with real tracer-bullet animation and a running best-time record. | Michael Bews | Program | |
| Amortize | A 15-year, $34,000 loan amortization table that prints monthly principal balance and interest breakdowns — all in BASIC with no floating-point library needed. | Program | ||
| Anatomy | Peek inside a BASIC program's raw byte structure — every address, decimal value, and printable character laid out line by line. | Program | SINCUS Exchange Tape 102 - Utilities & Business | |
| Android Nim | A strategic Nim game pitting you against an AI opponent that uses binary decomposition to calculate winning moves, with animated UDG android figures on a colorful board. | Program | ||
| Androids | Maze/shoot ’em up for one player. Travel through the maze to find the exit, avoiding androids that try to kill you. | Program | ||
| Androids (cart) | Maze/shoot ’em up for one player. Travel through the maze to find the exit, avoiding androids that try to kill you. | Cartridge | ||
| ANIMATION | A trigonometric multi-frame animation engine that uses hand-assembled machine code to blast screen buffers into view faster than BASIC ever could. | Duncan Overton | Program | |
| Animation | A richly layered countryside scene built by redefining the same nine UDG slots over and over, then mirroring plotted shapes across the screen using POINT-based reflection subroutines. | Alfred DeGennaro | Program | |
| ANY-BASE | Convert integers between any two number bases using this three-input utility that routes conversions through base 10 as an intermediate step. | Program | ||
| Arcscratch | Joystick-driven pixel graphics editor with line, circle, fill, and Bezier curve tools. | Wes Brzozowski, Paul Hill | Program | SINCUS Exchange Tape 102 - Utilities & Business |
| Art for All Ages | A pixel art studio with joystick drawing, machine code PICK/PUT routines, block fill, and a live status line — all packed into one BASIC program. | Bob Conlon | Program | |
| Artic Explorer | Guide your explorer across treacherous arctic terrain using string-rotation scrolling, UDG sprites, and seven distinct levels of icy obstacle patterns. | Program | CATS Library Tape 6 | |
| Artificial Intelligence | A conversational block-world AI lets you move, stack, and query colored shapes using plain English commands parsed by a letter-indexed dictionary with machine code assistance. | Bob Howard (WA6DLI) | Program | |
| Artworx | Drawing and gallery program for the 2068. Includes variety of brushes, fonts and drawing tools. | Program | ||
| Asteroids | Dodge a swarm of asteroids, deploy a limited energy screen, and battle for the top spot on this pixelated space survival game's Hall of Fame. | Program | SINCUS Exchange Tape 101 - Entertainment Timex Sinclair Public Domain Library Tape 2004 | |
| Astro | Eric Boisvert | Program | Byte Power September 1986 | |
| Astronomy | Enter a date and location to get computed rise, transit, and set times for the Sun, Moon, and every planet out to Pluto. | Program | ||
| Attr Table | A handy on-screen reference table renders all 64 paper and ink color combinations, showing their attribute byte values styled in the actual colors they represent. | Roger Valentine | Program | CATS Library Tape 8 Timex Sinclair Public Domain Library Tape 2003 |
| Audio Graph | A machine code-powered audio oscilloscope displays real-time EAR port waveforms in three distinct graph modes, with live line-graph switching at any moment. | Program | ISTUG Public Domain Library 5 | |
| Audioscan | Connect any audio source to the tape input socket and watch this three-mode oscilloscope program render your signal as a live scrolling waveform. | Program | ||
| Auto Analysis | A branching automotive diagnostic expert system walks you through battery, spark, fuel, compression, vacuum, and valve-train checks using a clever line-number stack to chain multiple test sequences automatically. | Edward Pardo | Program | |
| Auto Analyzer | A full car maintenance recordkeeper with mileage-based service reminders, multi-vehicle record storage, tape save/load, and an interactive engine diagnosis decision tree. | Program | ||
| Auto Answer | A hardware port-polling routine detects incoming telephone calls and waits for a persistent off-hook signal before triggering your own answer code. | Randy Kuhn | Program | Timex Sinclair Public Domain Library Tape 2001 |
| Auto Draw | A user-defined 3D box wireframe program fills its own screen border with diagonal zigzags using a clever error-trapping boundary-detection technique. | James Brezina | Program | |
| AutoGrafix | A full-featured UDG character editor supporting joystick or keyboard control, pixel-by-pixel bit toggling, numeric byte entry, and tape save/load for all 21 user-defined graphics. | Program | ||
| AUTOLINE | A machine code utility that hooks into the BASIC editor to provide configurable automatic line numbering, activated and deactivated via USR calls. | Program | ||
| Awful Anagram | Race to unscramble ten tricky words and phrases before a rising thermometer graphic reaches the top and the cauldron boils over. | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 | |
| B-58 | A PLOT/DRAW illustration of the Convair B-58 Hustler supersonic bomber, built with arc-capable DRAW commands and followed by a full spec sheet. | Program | ||
| B-9 | A nine-function personal finance suite covering compound interest, loan amortization, annuities, bond valuation, budget conversion, life insurance estimation, and a 300-year calendar — all from one menu. | Carl Terry | Program | |
| Backgammon | Features a graphical board with animated dice and doubling cube, four AI difficulty levels, machine code move selection. | Cartridge | ||
| Background | Enter any word and watch it instantly tile across the entire screen in random colors — a surprisingly effective background generator built from one clever string-doubling trick. | Program | CATS Library Tape 11 | |
| Bank Reconciliation | A two-mode checkbook reconciliation program prints formatted ledger columns on screen and paper simultaneously, using integer penny arithmetic to sidestep floating-point rounding errors. | Program | CATS Library Tape 3 Long Island Sinclair Timex (LIST) User Group Library Tape #2 | |
| Banner | Discover how a BASIC banner printer reads ROM font data directly, rotates character bitmaps 90 degrees, and scales letters up to four times their normal size for hardcopy output. | Christopher Raynak | Program | CATS Library Tape 11 |
| Banner | Type any message and watch this banner printer translate each letter into tall, blocky dot-matrix characters — one column of bits at a time. | Fred Blechman | Program | |
| Banner | Type any message, pick a width and fill character, and watch this BASIC program scale up ROM font data into giant printer banner text—up to four times normal size. | Randy Gordon | Program | |
| Banner | This banner generator reads ROM font bitmaps directly, decoding each bit to scale any message into giant printer text with adjustable width and height. | Ryan Gray | Program | Fort Worth TS2068 Club Library Tape |
| Banner | A clever banner printer that hijacks the screen renderer and POINT to enlarge any character string onto a 2040 printer in normal or inverse. | Program | CATS Library Tape 2 | |
| BANner | A banner generator that scans screen pixel data with POINT and reproduces your text as oversized block-graphic characters on a printer, in two sizes. | Program | ||
| Banner Designer | This 1985 banner printing utility drives multiple dot-matrix printers with machine code, large-font text, and cassette-loaded graphics icons — all configured from a polished menu system. | Program | ||
| Banner3 | This banner printer scans the screen's own character pixels with POINT and redirects them as oversized block-graphic text to a printer — two size modes included. | Program | SINCUS Exchange Tape 102 - Utilities & Business | |
| Bar Chart | A dot-density bar chart routine reads paired height and density values from DATA lines to render variable-fill bars using only PLOT commands. | Nick Hampshire | Program | CATS Library Tape 2 |
| BAR GRAPH | Enter up to 15 labeled values and watch this program scale and draw a horizontal bar chart complete with totals, averages, and a correction pass. | Program | ||
| Bars | A mesmerizing infinite loop of scrolling colored bars fills the screen using only PAPER attributes and blank PRINT statements — no graphics required. | Program | Timex Sinclair Public Domain Library Tape 2004 | |
| Bas2Txt | A clever hex-string loader pokes Z80 machine code into high RAM to silently convert any BASIC program into a saveable ASCII text file. | Program | ||
| Basic Renumber | A two-part BASIC renumbering tool that walks raw program memory, patches line-number headers with POKE, and reports every GO TO and GO SUB target that needs updating. | Program | Miscellaneous Programs | |
| BATCODE | A full Core War programming environment — editor, assembler, and battle engine — lets two Redcode programs fight to the death inside a shared memory arena. | Eduardo Fuentes | Program | |
| Battle | A board game where you and the computer trade diagonal captures on a block-graphic grid — enter coordinates to move, and race to six captures first. | Program | Timex Sinclair Public Domain Library Tape 2003 | |
| Battleship | A naval strategy game with two AI difficulty levels — one fires randomly, the other hunts ships using a directional offset array after scoring a hit. | Algis Gedris, Bob Mitchell | Program | |
| Battleships | A full Battleship game where you face a CPU opponent whose intelligence you control, from total ignoramus to tactical genius targeting squares near its last hit. | Edwin Schoen | Program | SINCUS Exchange Tape 103 - Potpourri |
| BBS Chess | A correspondence chess program that renders a full board with custom piece graphics, captures the screen to a memory buffer, and saves it ready for BBS upload. | Charles Stelding | Program | |
| BBSes | Four complete bulletin board systems in BASIC reveal how hobbyists built working dial-up BBSes with serial machine code routines, message arrays, and sysop editors. | Program | ||
| Beacon Adventure | Explore a 9×9 grid world, feed dogs, chop trees, unlock doors, and light a candle to power an island beacon in this text adventure with a verb-object parser. | Program | ||
| Bears | Plays the Chicago Bears Fight Song, encoded across parallel pitch and duration arrays, with mid-loop DATA jumps and strategic pauses. | James Brezina | Program | |
| Bears 1 | Plays the Chicago Bears Fight Song with an optional scrolling staff display, using custom UDG note symbols and carefully mapped pitch-to-position calculations. | James Brezina | Program | |
| Beatles | A two-voice AY chip arrangement of a Beatles classic, with selectable tempo and a live channel status display driven by carefully sequenced DATA statements. | Program | CATS Library Tape 10 | |
| Beep | A self-installing machine code beeper routine that carves its own RAM space, pokes 43 bytes of Z80, and plays a tone on every keypress via USR. | Program | Fort Worth TS2068 Club Library Tape | |
| BEEP & SOUND Translator | Translate BEEP data to SOUND data and also SOUND data to BEEP data. | Eric Boisvert | Program | Byte Power Fall 1987 |
| Beethoven | A full choral arrangement of "Ode to Joy" plays syllable by syllable, with melody, named chord accompaniment, and pitch-proportional lyric positioning all driven from a single DATA loop. | Program | Timex Sinclair Public Domain Library Tape 2003 | |
| BELLTOWER | Guide a rabbit through five haunted rooms, collecting bells and dodging bats in this multi-room platform game with user-defined graphics and attribute-based collision detection. | Program | CATS Library Tape 6 | |
| Bend Allowances | Enter bend angles, radii, and leg lengths to instantly calculate the flat blank length and bend allowances needed for precise sheet-metal fabrication. | W. K. Langendorf | Program | |
| BgDCsecular | A least-squares differential corrector that fits mean Keplerian orbital elements to a time series of observations using analytically computed J2 secular partial derivatives and Gauss elimination. | R. Asa Gordon | Program | |
| BgOBSMEAN | Converts observed satellite orbital elements to the smoothed mean elements needed by BgORBIT, using an iterative J2/J3/J4 perturbation correction loop that converges to sub-metre accuracy. | R. Asa Gordon | Program | |
| BgORBIT | A satellite orbit propagator that applies J2/J3/J4 gravitational perturbation corrections analytically to predict spacecraft position and velocity over time. | R. Asa Gordon | Program | |
| BI Guide | Eight self-contained demos in one package — from spring-physics animation and UDG flag graphics to a software digital timer — all selectable from a single menu. | Fred Blechman | Program | |
| BIG FLAP | A cleverly run-length encoded scrolling text display packs compressed message data into DATA statements and decodes it character by character at runtime. | Program | ||
| BigChar | A compact machine code utility that prints the text in a REM statement as large text. | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #2 | |
| BigStuff | Load any screen image and watch this clever machine-code routine slice and enlarge it into an eight-strip, 21-by-25.5-inch poster — automatically printed in one run. | Jack Keene | Program | Timex Sinclair Public Domain Library Tape 2001 |
| Binary | Watch each bit light up in color as this educational tool converts any decimal number from 0 to 255 into its 8-bit binary representation, with an animated auto-demo mode. | Program | CATS Library Tape 8 Fort Worth TS2068 Club Library Tape Timex Sinclair Public Domain Library Tape 2003 | |
| Bingham's Best | Paul Bingham | Cassette | ||
| Bingo-2068 | A dual-mode BINGO program that calls random numbers with column letters and prints unique, grid-lined BINGO cards — complete with a FREE center square. | Imre Auersbacher | Program | TS-2068 Computer Programs |
| Bio-Graph | Enter your birthday and a target month to watch three sinusoidal biorhythm curves — Physical, Sensitivity, and Intellectual — plotted live across the screen. | Fred Blechman | Program | Timex Sinclair Public Domain Library Tape 2003 |
| Biorhythm | Enter two dates and watch three sine-wave biorhythm cycles — Physical, Emotional, and Intellectual — plotted simultaneously across a full-width graph. | Program | ||
| Biorhythm Computer (1700-2200) | Enter your birthdate and a date range to generate a printed biorhythm chart that plots physical, emotional, and intellectual cycles day by day. | Imre Auersbacher | Program | TS-2068 Computer Programs |
| Biorhythms | Enter your birthdate and watch three color-coded sine waves reveal your physical, mental, and emotional biorhythm cycles plotted live on screen. | Jim Clark | Program | SINCUS Exchange Tape 101 - Entertainment |
| Biorhythms | Plot your physical, mental, and emotional biorhythm cycles as colorful sine waves — just enter your birth date and today's date to see the month ahead. | Program | Timex Sinclair Public Domain Library Tape 2004 | |
| Biorythm | A three-cycle biorhythm plotter that uses pre-computed DATA tables and a custom UDG marker to draw your physical, emotional, and intellectual curves for any target month. | Eric Boisvert | Program | Byte Power September 1986 |
| Black Box | Fire laser beams into a hidden 8×8×8 cube to locate five randomly placed atoms using 3D reflection physics — a spatial deduction challenge with illustrated instructions. | D. J. Currie | Program | |
| Black Jack | Deal yourself in: this Blackjack game renders suit symbols as custom characters, shuffles a full 52-card deck, and pits you against a house dealer for cold hard virtual cash. | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 | |
| Blackjack | A fully featured Blackjack game deals graphical playing cards from a shuffled 52-card deck, with aces, blackjacks, five-card tricks, and variable betting all handled correctly. | Werner Kaelin | Program | CATS Library Tape 1 |
| Blam | A two-part typing tutor and arcade game teaches home-row fingering through animated keyboard diagrams, a timed Firecracker exercise, and a bomb-interception game with per-player score records saved to tape. | Richard Haseltine | Program | |
| Blind Alley | A light-cycle-style grid game set a millennium in the future, with directional spacecraft controls, persistent motion trails, and an increasing number of opponents across rounds. | Simon Lane | Program | |
| BLOKMAN | Guide a two-cell sprite through enemy-packed screens, defuse TNT against a shrinking timer bar, and grab bonus flags in this two-stage action game. | Program | CATS Library Tape 6 | |
| Boggle | A three-language Boggle clone that generates random letter dice, times two players simultaneously, and scores words by length—with full Spanish and German character support via custom UDGs. | Program | Miscellaneous Programs | |
| BOLD | A tiny machine code patch toggles bold, heavy-weight character output on and off with a single POKE to a system address. | Program | CATS Library Tape 3 Long Island Sinclair Timex (LIST) User Group Library Tape #2.2 | |
| Bold | A compact 29-byte machine code routine patches the system to deliver bold text output, loaded and launched by a minimal BASIC bootstrap program. | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #2 | |
| Bold Print | A 29-byte machine code patch that swaps in a bold character font for cleaner, heavier listings — toggled on or off with a single POKE. | Program | ||
| Bomber | Pilot a bomber across a randomly generated city skyline, drop bombs on buildings, and fight for a place on one of three difficulty-level high-score tables. | Program | ||
| Bookworm | A full-featured book catalog database that stores up to 425 titles with 14 fields each, complete with sorting, searching, editing, and printer support. | Program | ||
| Bounce | Enter a bounce count and watch a pixel ricochet across the full screen, with distinct beeps at each wall — stopping exactly when you say. | Program | Fort Worth TS2068 Club Library Tape Timex Sinclair Public Domain Library Tape 2001 | |
| Bouncing Text | Type any short phrase and watch it bounce across the screen paired with its inverse-video twin in an endless, scrolling light show. | Program | ISTUG Public Domain Library 6 | |
| Breakout | A Breakout-style demolition game that drops a ball through coloured brick rows, complete with splash damage, a high score, and direct font manipulation for the scoreboard. | Program | Fort Worth TS2068 Club Library Tape Timex Sinclair Public Domain Library Tape 2001 | |
| Brick-Yard Bill | Guide Bill through a brick-filled yard using cursor keys — but if every neighboring cell gets blocked, the game's over and your percentage score is tallied. | Program | CATS Library Tape 1 SINCUS Exchange Tape 101 - Entertainment | |
| Bridge | A fully playable bridge hand trainer that deals, displays with suit symbols, and tracks all 13 tricks — complete with contract entry and audio feedback at key trick counts. | Program | Miscellaneous Programs | |
| Bridge Builder | Drop bridge sections with split-second timing, survive near misses with a rescue helicopter, and fight for a spot on the scrolling high-score table in this action game. | Program | CATS Library Tape 1 | |
| Britain Invaded! | Fight the hypothetical 1940 German invasion of Britain in this detailed turn-based wargame, featuring machine-code map data, scrolling terrain, and dice-driven combat resolution. | Program | ||
| Broadway | A compact BASIC loader for the BROADWAY font. | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 | |
| Bubbles | An endlessly looping art program draws random circles with boundary checking, randomized border colors, and a pitch-shifted beep tied to each circle's radius. | Program | ||
| Bubloid | Kristian Boisvert | Program | Byte Power November 1986 | |
| BUDGET | A seven-option personal budget manager tracks named accounts month-by-month, displaying running balances, deficits, and annual totals with formatted dollar amounts. | Program | ||
| Budgeter | A full home budgeting system lets you track monthly budget versus actual spending across up to 50 accounts, complete with bar-chart graphical analysis and tape file save/load. | Cartridge | ||
| Budgeter | A full home budgeting system tracks monthly budget versus actual figures for up to 50 accounts, complete with bar chart analysis and tape storage. | Program | ||
| BURSTLINE | Watch a text string dramatically "burst" outward from its center character by character, with a rising beep tone accompanying each animation frame. | Program | ||
| Buster | Eric Boisvert | Program | Byte Power September 1986 | |
| Buster-Bill's Obsession | A grid-based puzzle-action game where you steer a character across scrolling block rows, defusing time bombs before they detonate — with nine escalating difficulty levels. | Program | Timex Sinclair Public Domain Library Tape 2004 | |
| Byte Mapped Scroll | A machine code utility that lets you define any rectangular screen region and scroll it up or down, with or without wrap-around, callable from your own BASIC programs. | C. Vernon Tidwell | Program | |
| Byte Power August 1986 | Eric Boisvert, Kristian Boisvert | Cassette | EASYtype Feast Of Classics Grand Prix Graphic Graphic Show Hang Man Knight's Tour Minotaur Music Paranoid RENUM63000 Robot Shooter Sound The End | |
| Byte Power December 1986 - January 1987 | Tape-based magazine. | Eric Boisvert, Kristian Boisvert | Cassette | 64 Column Print Amazi-Music Classic Moments Of Music Clock Duet Example 2 Ghost Hunters Grafix Island Navy Qber Real Echo Example The Desk |
| Byte Power Fall 1987 | Tape-based magazine. | Eric Boisvert, Kristian Boisvert | Cassette | BEEP & SOUND Translator EASYsprite EASYsprite DEMO EASYsprite Maker Fancy Clear Screen Grafix II Interest Calculation Quizomania Scuba Diver Sky Diver |
| Byte Power Fall 1988 | Tape-based magazine. | Eric Boisvert, Kristian Boisvert | Cassette | Data Maker Screen Compactor Spreadsheet II Tape Corrector |
| Byte Power February 1987 | Tape-based magazine. | Eric Boisvert, Kristian Boisvert | Cassette | 2 Voice Beep Example Checkbook Accounts Envelope Example Inventory Just Another Spreadsheet! Lost In 3D Mailing List Mr Me! Musicomp 1 Out Music Super Marbles Text Printer |
| Byte Power February 1988 | Tape-based magazine. | Eric Boisvert, Kristian Boisvert | Cassette | Conflict Hello! Lotto MUSIC Demo MUSIprint Pachizee Solitaire Water Balloon Masters Weird Balls (Astro II) |
| Byte Power May 1988 | Tape-based magazine. | Eric Boisvert, Kristian Boisvert | Cassette | |
| Byte Power November 1986 | Tape-based magazine. | Eric Boisvert, Kristian Boisvert | Cassette | 3X3 Character Bubloid Checkbook Balancer Derby Diamond Max False Echo Example Memory Music Play Plukkers Hunt Towers Of Hanoi Trace |
| Byte Power October 1986 | Tape-based magazine. | Eric Boisvert, Kristian Boisvert | Cassette | 3D Animation Air Defense Amazing Checkers EASYword Fortress Funny Faces TUNE BOX volume 2 |
| Byte Power September 1986 | Tape-based magazine. | Eric Boisvert, Kristian Boisvert | Cassette | Aliens Astro Biorythm Buster Character Set Definer Color-Pad Construx Explosion Sound Example Helicopter 1 Sound Example Helicopter 2 Sound Example Helicopter 3 Sound Example OUAH! Sound Example Phone Book Small Screen Painter Special Sound The Day You Were Born Tune Box |
| Byte Power Spring 1987 | Tape-based magazine. | Eric Boisvert, Kristian Boisvert | Cassette | Decision Maker Duo-Voice (Beep) EASYprint Word Processor INKEY$ Mister Butterfly The Qualifier Tri-Voice (Beep) Tycoon Z-Row Gravity |
| Byte Power Winter 1989 | Tape-based magazine. | Eric Boisvert, Kristian Boisvert | Cassette | |
| Calculator | A menu-driven columnar calculator lets you define named variables, write algebraic formulas, and generate multi-column result tables — all with a custom expression parser. | Program | SINCUS Exchange Tape 102 - Utilities & Business | |
| Calendar | A two-months-at-a-time calendar generator for any year in the twentieth century, with printer support and a custom UDG border graphic. | Program | ||
| Calendar | A calendar generator using Zeller's congruence calculates the correct starting weekday for any month from 1752 onward, with clever PEEK tricks to manage column-based layout. | Program | Fort Worth TS2068 Club Library Tape Timex Sinclair Public Domain Library Tape 2001 | |
| Calendar | A graphical calendar generator spanning 1583 to 9999 AD, with Zeller's Congruence day calculation, printer heading options, and full-year print mode. | Imre Auersbacher, Algis Gedris | Program | |
| Calendar | Calculate which day of the week any historical date fell on — this calendar program covers any month and year with full leap-year support. | Program | ||
| Calendar Program | Enter a year and up to ten special dates, then watch this BASIC calendar generator print a full 12-month grid with inverse-video highlights and optional hard copy output. | Program | ||
| Call the Plumber | Guide your bucket across the screen to catch 30 falling drips in this real-time arcade game that uses custom-defined UDG sprites for every on-screen character. | Program | ISTUG Public Domain Library 6 | |
| Calligraphy Font | A complete calligraphic bitmap font renderer that places custom 24×24 and 24×30 pixel letters anywhere on screen using pixel-precise coordinates and machine code. | Ben H. Jackson | Program | Fort Worth TS2068 Club Library Tape |
| Caloriburn | Enter an activity number and exercise duration to instantly calculate calories burned and the equivalent weight loss in both kilograms and pounds. | Program | CATS Library Tape 8 Long Island Sinclair Timex (LIST) User Group Library Tape #7 Timex Sinclair Public Domain Library Tape 2003 | |
| Canada | Draw a detailed Canadian map outline using encoded path strings, flood-fill provinces with machine code, then test your geography across 35 cities in two quiz modes. | D. J. Currie | Program | |
| Cannon Balls | Dodge, catch, and survive as cannon balls bounce unpredictably around the screen — can you protect your catchers before all 50 shots are gone? | Jerry Cohler | Program | |
| CANNONADE | A six-enemy cannon assault game where letter commands push back attackers advancing across a 20-position grid — but random row shifts keep you guessing. | Drew Nisbet | Program | |
| Capital Area Timex Sinclair Users Group Membership Files | A full-featured membership database with Shell sort, payment-expiry tracking, and formatted roster printing — all built in BASIC for a real computer club. | Mark Fisher | Program | |
| Capitalization Master | A two-part grammar drill covering capitalization rules challenges students to spot errors in sentences, tracks their scores by rule category, and offers a timed test mode. | Program | ||
| Card | A fully hand-crafted BASIC Christmas card draws a dove, decorative seasonal greetings, and a geometric star using nothing but arcs and lines. | Program | CATUG Tape 0.0 0001 | |
| Case Swap | This self-modifying BASIC utility walks through program memory byte by byte, permanently flipping every letter between uppercase and lowercase on demand. | Program | ||
| Cash Flow | A coin-pusher arcade game uses UDG sprites, a real-time frame-counter clock, and column-stacking mechanics to simulate a 10p coin machine with a four-minute session limit. | Program | SINCUS Exchange Tape 103 - Potpourri | |
| Casino 1 | High roller casino action games let you play 2 1 , "craps", or the slots. An initial betting stake gives you the chance to "break the bank" or "lose your shirt." If you like fast-action, this software program is a good bet. | Cartridge | ||
| Cassette Directory | A tape cataloguing utility that reads file headers directly from memory and logs type, name, size, and load address — all printable and saveable for later review. | Michael Carver | Program | Timex Sinclair Public Domain Library Tape 2001 |
| Cassette Label | Enter two tape titles and this program prints a ready-to-fold cassette case label complete with cut lines, fold guides, and fitting instructions. | Program | CATS Library Tape 8 Timex Sinclair Public Domain Library Tape 2003 | |
| Cassette Label Maker | A tape label maker that centers text, supports decorative cut-out titles, drives printer escape codes directly, and manages a companion machine code block via tape. | Program | ISTUG Public Domain Library 6 | |
| Cat 'n' Mouse | Guide a cat through a crowded playfield, eating 50 mice while dodging deadly rats that multiply with every catch — how fast can you clear the board? | Program | CATS Library Tape 6 | |
| Catalog | A machine-code powered tape cataloger that reads headers from a running tape, identifies file types and names, and estimates their physical position automatically. | Program | Timex Sinclair Public Domain Library Tape 2001 | |
| Cats and Trucks | A counting game for young learners that spawns sprite-based objects on screen and quizzes the player — with audio-assisted correction when they get it wrong. | Program | ||
| CATS Library Tape 1 | From Blackjack to Star Trek, Moon Lander to a first-person dungeon crawler — this tape packs 21 games and puzzles into one of CATS' earliest library volumes. Card sharks, arcade fans, and puzzle solvers alike will find something here. | George Mockridge, Mark Fisher | Cassette | Blackjack Brick-Yard Bill Bridge Builder Cribbage Death Race Demolition Egg Savior Hell's Angels HIDDENWORD HUNCHY Keno MINOTAUR Moon Lander Poker QBert Space War Star Trek Tag Tic Tac Toe Train |
| CATS Library Tape 10 | Hear Mozart and Chopin through the AY sound chip, chat with ELIZA, simulate population genetics, or build your own quizzes — Tape 10 ranges from concert hall to classroom, with something for musicians, scientists, and educators alike. | Cassette | Beatles Chopin Eliza Equations French Vocabulary Genetics Glasswalls Inside Spectrum Life Mozart Multiply Ohm's Law Parakeet Piano Question & Answer Test Generator Quizmaster Read & Spell Spell That Word Spellbug Word Images | |
| CATS Library Tape 11 | Cycle through all 128 colors, spin a 2D profile into a 3D wireframe solid, or watch mesmerizing geometric patterns bloom and refill the screen — Tape 11 is a visual feast that pushes the TS 2068's display to its limits. | Cassette | 128 Colors 2068 Art Background Banner Clover Doorway Goblet Graphics Greeting Network New Chars Newscript Santa-C Title Shoot UDG Demo | |
| CATS Library Tape 2 | Spin a 3D wireframe cube, squeeze 64 columns onto screen, or draw pixel art with a joystick — Tape 2 is a creative toolkit for artists, programmers, and Spanish learners, packed with drawing programs, banner printers, and a full character editor. | Cassette | 3D Shape Banner Bar Chart Character Editor Characters Color Plot Doodle Geography Quiz Headline PieChart Pix Fix Random Fan Spanish Tutor Spectrum Draw UDG Custom Graphics | |
| CATS Library Tape 3 | Balance your checkbook, decode cryptograms, or trace your BASIC program's execution path — Tape 3 is where serious productivity meets hands-on programming. Highlights include a word processor, a flat-file database, machine code loaders, and a complete darkroom formulary. | Cassette | Bank Reconciliation BOLD CRYPTO EXTENDED BASIC FIRSTLOAD FLIP Formulary Geometric Patterns Headscan HEXSPEC INTERPOLATE Keyword v5 LISTS MCEDIT MCLOADER Sound Scanner Tomorrow Lies In Ambush! TOOLKIT Video Tape File Weekly Taping Schedule | |
| CATS Library Tape 6 | Battle through haunted belltowers, explore the arctic, or learn Spanish verb conjugations — Tape 6 blends arcade games with language learning and programming utilities. Includes a multi-program memory manager and a full-screen text editor. | Cassette | 3D Draw 3D Words Artic Explorer BELLTOWER BLOKMAN Cat 'n' Mouse CURSOR Cursor Adventure FILL Geography Quiz GHOTI Manimation MTOS Munchie Man Spanish Builder I Spanish Builder II Spanish Tutor TEXTYPE Wagoner's Walk WORDSQUARE | |
| CATS Library Tape 8 | The power-user's tape. Assemble and disassemble Z80 code, manage databases with Quicksort, trace BASIC program flow, or decode resistor color codes — Tape 8 is an essential toolkit for the serious TS 2068 programmer. | Cassette | 2068 Assembler 2068 Disassembler and Monitor Attr Table Binary Caloriburn Cassette Label Circuit Sketch Copycat FILE 1 GRID 9X HEXLOADER MC-MOVE Metric Conversion Multi Tape MULTIFILE+ RESISTOR SEND VARS Sound Effects Streams and Channels Telephone Directory TRACER Tracer Unifile III Varslist | |
| CATS Library Tape 9 | Watch Gaussian bell curves rendered in perspective, animated saddle surfaces cycling through memory pages, and a rotating 3D pyramid with hidden-line removal — Tape 9 is a showcase of what the TS 2068 can do with math and machine code. | Cassette | 2068 Graphics and Trig Complex 7 Drop Droppages EXP Moving Waves QRL Rotating Pyramid Saddle Cosine Saddle Cosine 1 Sprite 2 | |
| CATUG Tape 0.0 0001 | A compact sampler from the Chicago Area group — render a 3D isometric bar chart, hear Bach's Minuet in G in multi-voice polyphony, and explore a catalog of screen animation techniques all on one tape. | Cassette | 3 Axis Bar Chart Card Header5 Minuet in G Programming Techniques for the Timex Sinclair TS 2068 | |
| CATUG Tape 0.0 0008 | A gallery of 48 screen images preserved from compressed RLE originals — a visual archive of TS 2068 artwork from the Chicago Area user group, now available as downloadable PNG files. | Cassette | ||
| Certificate | Design a custom bordered certificate on screen, picking from fourteen user-defined graphic symbols to frame your own centered text lines. | Program | SINCUS Exchange Tape 102 - Utilities & Business | |
| Char Design | Draw an 8×8 character pixel-by-pixel, then watch the program calculate the exact decimal byte values and redefine a custom graphic automatically. | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #2 | |
| Character | Browse every character in the built-in font one by one, with each glyph's 8×8 pixel bitmap rendered live on screen using custom block graphics. | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 | |
| Character Editor | Design custom UDG characters pixel by pixel on a live grid, with instant byte-value readout and automatic RAM updates as you draw. | Program | CATS Library Tape 2 | |
| Character Editor | Design custom pixel characters interactively on an 8×8 grid, with real-time preview and direct memory writes using POKE and USR. | Program | ||
| Character Set Definer | Eric Boisvert | Program | Byte Power September 1986 | |
| Characters | Step through every character in the set, watching its 8×8 pixel grid and raw ROM byte values revealed row by row with a keypress. | Program | CATS Library Tape 2 | |
| Characters | Type any word up to 10 characters and watch it redrawn pixel-by-pixel as a magnified outline — a clever trick using POINT and DRAW. | Program | Timex Sinclair Public Domain Library Tape 2001 | |
| Charecter4 | A four-font character set switcher that POKEs custom lettering styles into the system font pointer, ready to bolt onto any BASIC program. | Algis Gedris, Kenneth Majors | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 |
| Check | A configurable checkbook ledger program that tracks debits, credits, check fees, and tax-deductible entries — with on-screen statements, printer output, and automatic file compaction. | James DuPuy | Program | |
| Checkbook | A practical checkbook reconciliation tool that tallies outstanding checks and deposits, then prints a full statement of account on paper alongside the screen output. | Program | Timex Sinclair Public Domain Library Tape 2001 | |
| Checkbook Accounts | A tape-based checkbook manager. | Kristian Boisvert | Program | Byte Power February 1987 |
| Checkbook Balancer | Kristian Boisvert | Program | Byte Power November 1986 | |
| Checkbook Balancer | A step-by-step checkbook balancer that reconciles outstanding checks and unposted deposits against your bank statement, displaying a neatly formatted summary screen. | John Colonna | Program | SINCUS Exchange Tape 102 - Utilities & Business |
| Checkbook Manager | A full-featured personal checking account manager packs binary-encoded balances, multi-field search, category tracking, and tape save/load into a single BASIC program. | Program | ||
| Checkers | Well, you probably know this game, so enjoy it! The computer is not very ‘bright’ but should keep you entertained for a while! | Kristian Boisvert | Program | Byte Power October 1986 |
| Checkers | A fully playable checkers game with computer AI, custom piece graphics, king promotion, and a coordinate-based move input system packed into under 170 lines of BASIC. | Program | ||
| Cherry Hills Golf | Play all 18 holes of a legendary U.S. Open course, choosing clubs, managing your handicap, and battling hooks, slices, and tricky putts to finish under par. | Program | ||
| Chess | Classic Chess match between you and the computer. | Program | ||
| Chess | Classic Chess match between you and the computer. | Program | ||
| Chomper | A Pac-Man maze game squeezes dot-eating, two chasing ghosts, power pellets, skill levels, and high-score tracking into pure BASIC. | Program | SINCUS Exchange Tape 101 - Entertainment | |
| Chopin | A BASIC arrangement of Chopin's Prelude drives the AY-3-8912 chip directly, blending three-channel register writes with BEEP calls and a user-adjustable tempo control. | Oleg D. Jefimenko | Program | CATS Library Tape 10 |
| Chordizer | A chord library that wraps plain BEEP melodies in full three-voice triads using raw sound-chip register values — transcribe sheet music with harmony in minutes. | Program | Timex Sinclair Public Domain Library Tape 2003 | |
| CHR | A four-section character design toolkit lets you inspect, draw, convert, and save custom graphics — complete with binary, decimal, and hex readouts and Microdrive support. | Program | ISTUG Public Domain Library 8 | |
| CHR TEST | A two-mode CHR$ explorer that quizzes you on ASCII codes against a ticking bomb timer, then lets you inspect every printable character's raw font bytes. | Program | ||
| Christmas Special | A dazzling animated scene combines a custom pixel-art backdrop, PLOT/DRAW geometry, scrolling text banners, and a BEEP fanfare into one self-contained display program. | Program | ||
| CHRs Gen | A font-remapping utility that rewrites every character definition in RAM, then auto-prints instructions before wiping itself — leaving behind a boldened printer font. | Program | ||
| CIDS | A full-featured flat-file card index database with a command dispatcher, two-mode full-screen editor, Shell sort, numeric zone summation, and tape persistence — one of the most architecturally complex BASIC productivity applications for the Sinclair platform. | Mike Trivisonno | Program | |
| Circle Fill | A clever scan-line algorithm fills a circle using Pythagorean geometry, accepting custom ink color, center coordinates, and radius — all in under ten lines. | Program | ||
| Circuit Board Scramble | Navigate a circuit board maze to repair computer components in this two-phase action game that blends BASIC gameplay logic with heavy machine code assistance. | Program | ||
| Circuit Sketch | Draw complete electronic circuit diagrams interactively, placing resistors, capacitors, transistors, diodes, and more using simple single-key commands. | Program | CATS Library Tape 8 | |
| Circus Coloring Book | The Zebra Circus Coloring Book is a graphics program for your Zebra Graphics Pad which allows you to color black and white pictures on your TS2068 screen just like a regular coloring book. | Program | ||
| City 2068 | A 60-room text adventure set in post-apocalyptic Manhattan, with subway transit, key-based door unlocking, and a hot air balloon escape on the rooftop. | Program | ||
| Classic Moments Of Music | Kristian Boisvert | Program | Byte Power December 1986 - January 1987 | |
| Classy Front End Demo | A machine code custom font engine with proportional spacing and kerning powers a slick GUI-style scrollable menu demo — all driven from BASIC. | Paul Bingham | Program | |
| Classy Front End Pt 1 | Enter any phrase and watch it rendered as large, individually hand-crafted pixel-art characters across the graphics screen, with automatic line-wrapping built in. | Paul Bingham | Program | |
| Clip Art | A ten-image clip-art menu lets you PLOT, DRAW, and CIRCLE flowers, bees, valentines, and more — even layering multiple images on one screen. | Program | Fort Worth TS2068 Club Library Tape Timex Sinclair Public Domain Library Tape 2001 | |
| Clip Art Designer Series | 91 clip art images for use with Pixel Print. | Bill Ferrebee | Program | |
| Clip Art Icon Lib V1 | Clip art for use with Pixel Print. | Bill Ferrebee | Program | |
| Clock | A background interrupt clock in 536 bytes of machine code, with BASIC documentation and a smart loader that detects whether the code is already resident in RAM. | Eric Boisvert | Program | Byte Power December 1986 - January 1987 |
| Clock | A self-advancing digital clock that chimes every quarter-hour with distinct melodies and renders digits by bit-reading the ROM font with PEEK. | Program | Fort Worth TS2068 Club Library Tape Timex Sinclair Public Domain Library Tape 2001 | |
| Clock | A fully animated analog clock face with trigonometrically placed hour markers, sweeping hands, and an audible tick rendered entirely in BASIC. | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #2 | |
| Clone | A machine code–backed tape utility offering block copying, header reading, and speed calibration — with automatic hardware detection to switch entry points on the fly. | Wes Brzozowski | Program | |
| Clover | A mesmerizing geometric "Clover" pattern grows petal by petal with randomized colors and three distinct drawing modes, then floods the screen with fill lines before restarting. | Program | CATS Library Tape 11 | |
| Code Master | Decode famous quotations using substitution ciphers, with frequency analysis, hints, and an edit mode to add your own puzzles to the built-in library. | David Hoshor, Thomas Simon | Program | |
| Code Mover | A BASIC tool that relocates Z80 machine code to a new address and automatically patches every internal absolute address so nothing breaks. | Chuck Dawson | Program | Fort Worth TS2068 Club Library Tape |
| Codebreaker | A color-coded Mastermind clone that challenges you to crack a secret 4-digit code in 10 tries, with satisfying audio and visual feedback for every guess. | Program | ||
| Codeloader | A full machine code entry suite that lets you load, edit, and execute Z80 routines byte-by-byte in hex or decimal, with live memory peek and relocation tools. | Patrick Fagan | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 |
| Color Bars | A looping screen-fill demo cycles through six ink colors in horizontal and vertical passes, then transitions through progressively sparser block-graphic patterns with keypress pauses between each stage. | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 | |
| Color Plot | A pixel-precise joystick drawing tool with circle stamping, color cycling, sound feedback, and direct tape save — all packed into a tight real-time loop. | Program | CATS Library Tape 2 | |
| Color Show | A hypnotic random walk paints colored blocks across the screen, drifting through nine paper colors with every unpredictable step. | Program | ||
| Color-Pad | Kristian Boisvert | Program | Byte Power September 1986 | |
| ColorCopy | A tape-loaded machine code driver lets you configure color, size, and position settings before sending screens to an Okidata dot-matrix printer. | John McMichael | Program | |
| Colorsort | Watch 768 randomly colored screen cells sort themselves into order before your eyes, driven by a visually animated bubble sort straight in attribute memory. | Lloyd Painter | Program | |
| Companion 1 | Clipart images fro use with Byte Power's Print Factory. | Program | ||
| Companion 2 | Clip art for use with Byte Power's Print Factory. | Program | ||
| Companion 3 | Clip art for use with Byte Power's Print Factory. | Program | ||
| Compass Compiler | A two-in-one development toolkit packs a full two-pass Z80 assembler and an integer BASIC compiler into one BASIC listing, complete with label resolution and direct machine code output. | John Richard Coffey | Program | |
| Complex 7 | A 3D surface plot combining cosine waves and Gaussian exponential bumps uses hidden-line removal arrays to render a dramatic mathematical landscape — but be prepared to wait. | James Jones | Program | CATS Library Tape 9 |
| Complex Mathematics | A full-featured complex number calculator supporting addition, subtraction, multiplication, and division with optional rectangular-to-polar conversion for each result. | Algis Gedris | Program | |
| Composition Editor | A three-voice composition editor lets you enter, edit, and play back music note-by-note, storing pitch data as raw sound-chip register values in string arrays. | Bryan Lewis | Program | ISTUG Public Domain Library 6 |
| Concentration | A two-player memory card game hides nine letter pairs across a 6×6 grid, challenging players to find all matches before their opponent does. | Program | SINCUS Exchange Tape 101 - Entertainment | |
| Concentration | A one-player Concentration card game with all 52 cards laid out in a numbered grid, UDG suit symbols in red and black, and a turn counter tracking efficiency to the final pair. | Program | Miscellaneous Programs | |
| Conflict | Guide BOUNCER through the evil land of GALNA. Find MAGIC PILLS to increase your fire power. | Eric Boisvert | Program | Byte Power February 1988 |
| Confusion | This clever BASIC utility lets you replace the displayed text of numeric literals in any program while leaving their true floating-point values completely intact. | Floyd Chrysler | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #2 |
| Constellations | A randomised astronomy quiz draws 28 constellations using custom UDG star glyphs, then challenges you to name each one and its brightest star. | Eric Burgess, Paul Holmgren | Program | Miscellaneous Programs |
| Construx | Kristian Boisvert | Program | Byte Power September 1986 | |
| Contour | Draw two terrain profiles by hand or let a sine-wave generator do it, then watch the program project a contoured 3D landscape in three different orientations. | Program | ||
| Conversion | A menu-driven unit converter handles eleven measurement types and hides a developer toolkit — renumber, rem-kill, and more — in unreachable lines at the end. | Thomas Simon | Program | |
| Copycat | A tape copier and Z80 assembler in one package — copy tapes with or without headers, and assemble Z80 machine code with full instruction set support, symbol table, and forward reference resolution. | Program | CATS Library Tape 8 Timex Sinclair Public Domain Library Tape 2003 | |
| Corrected Spectrum ROM | Fixes a documented bug in the original Spectrum ROM, making the NMI reset mechanism actually work. | ROM | ||
| Crack Safe | Guess three secret numbers to crack a combination safe, guided by musical pitch hints, before your security units run out. | Program | ||
| Crasher | A fast-paced car race game uses custom UDG characters, SCREEN$ collision detection, and a looping sound-and-light title screen to challenge your reflexes. | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 | |
| Crazy Balloons | Pilot a balloon through four increasingly treacherous maze stages, dodging asteroids and your own ink trail — with custom sprite characters and color-based collision detection. | Program | ||
| Crazy Bugs | You are in a maze in which you must get the eggs laid by the bugs, put them in a box, and exit the maze. | Cartridge | ||
| Crazy Bugs | You are in a maze in which you must get the eggs laid by the bugs, put them in a box, and exit the maze. | Program | ||
| Creative Graphics & Music | A three-program suite lets you draw pixel art with joystick control and compose music through animated glasses, a note grid, and a full multi-octave composer. | Michael Zerbo | Program | |
| Cribbage | A fully playable Cribbage game with a computer AI opponent, complete with pegging, hand counting, a crib board display, and an optional muggins rule. | Program | CATS Library Tape 1 | |
| Cricket | A two-team cricket simulation with custom sprite graphics, adjustable difficulty, and diagonal ball-trajectory physics lets you bat for runs or risk getting caught or bowled. | Program | SINCUS Exchange Tape 101 - Entertainment | |
| Crossfire | High-scoring, fast-paced chase game demands that you whiz through the maze without getting caught. | Program | ||
| CRYPTO | A screen-based substitution cipher pad that lets you decode cryptograms letter-by-letter using the display buffer itself as its working data structure. | Program | CATS Library Tape 3 | |
| CURSOR | Discover how a single POKE into one system variable transforms the appearance of the input cursor through seven distinct visual styles. | Program | CATS Library Tape 6 | |
| Cursor Adventure | Navigate inside a computer, collect colored wires, and defeat the evil Cursor before your time runs out in this inventory-based text adventure. | Program | CATS Library Tape 6 | |
| Curve | An interactive Bézier curve designer lets you place up to 20 control points and watch the mathematically computed smooth curve plotted on screen. | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #2 Long Island Sinclair Timex (LIST) User Group Library Tape #2.2 | |
| Curve 2 | Enter a set of control points and watch this program compute and plot a smooth Bézier curve, with an optional wireframe overlay showing the control polygon. | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #2 | |
| Custom Colors | Display a resistor color code chart with custom UDG block graphics and then cycle through all 56 foreground/background color combinations in a single-screen demo. | George Gilder | Program | |
| Cyberzone | With your lasers you must chip away the spinning Cyber spacecraft and wipe out the notorious Cyberzone leader by hitting his only vulnerable spot: the left foot. | Program | ||
| Dam Attack | A math quiz game where scrolling arithmetic problems must be answered before they breach the dam — or the valley floods. | Program | ||
| Dam Buster | Guide your bomber across a scrolling landscape, drop bombs onto the dam using joystick control, and chase a persistent high score in this sprite-based action game. | Program | ||
| Data Maker | Transform codes into DATA statements in a BASIC program. | Kristian Boisvert | Program | Byte Power Fall 1988 |
| Database | A full seven-field contact database for a church department, driven by machine-code modules that patch RESTORE addresses on the fly to navigate records stored in DATA statements. | Ben H. Jackson | Program | Fort Worth TS2068 Club Library Tape |
| Datafile | A fully configurable flat-file database manager lets you define fields, then add, edit, delete, search, sort, and print records — all built in interpreted BASIC. | T. A. David | Program | |
| DATAGEN | A self-removing utility that interactively builds a DATA statement by writing bytes directly into the BASIC program area — no editor needed. | Program | ||
| Dating Game | A two-player compatibility quiz covering dinner, movies, music, and more daring topics — can ten questions reveal whether you and your date are truly a match? | Butch Weinberg | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 |
| Daysheet | A bookkeeping day-sheet tool for tracking charges, payments, and adjustments lets you skip awkward shifted punctuation keys while automatically cross-checking your totals. | Charles Judge | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 |
| Deacons | A full-featured contact directory manager for up to 90 entries supports name, address, phone, state, ZIP, and church committee code searches from a single numeric menu. | Program | ||
| Dead Ducks | Aim your cannon at moons and ducks across five rounds — this two-player artillery game uses custom UDG sprites and parabolic trajectory math to decide your fate. | Program | ||
| Death Castle | A sprawling two-part text adventure with item tracking, a spike-door timing minigame, and a hand-rolled two-word command parser that challenges you to defeat an evil ruler. | Lon Stucky | Program | |
| Death Race | A timed car-chase game with custom UDG sprites, SCREEN$-based collision detection, and a randomly wandering enemy that you must hunt down before the clock runs out. | Peter Shaw | Program | CATS Library Tape 1 ISTUG Public Domain Library 7 |
| DEC TO BIN | Convert any decimal number to binary using a clever hardware trick — POKEing a value into display memory and reading pixels back with POINT. | Stan Livingston | Program | |
| December 25 | A self-contained animated Christmas card that combines UDG graphics, scrolling banners, AY chip music, and three-voice melody encoding into a single looping BASIC program. | Program | Miscellaneous Programs | |
| Decimal Columns | A clever two-decimal-place formatter that right-aligns numbers across screen columns using DEF FN rounding and string-padding tricks. | Algis Gedris | Program | |
| Decision Maker | Kristian Boisvert | Program | Byte Power Spring 1987 | |
| Decoration of Independence | Celebrate Independence Day with animated fireworks for each of the original 13 colonies, followed by a block-graphics rendering of the historic 13-colony flag. | Joan Kealy | Program | |
| DEF 2068 | A menu-driven inventory manager with custom field input, automatic price calculation, low-stock warnings, and file save/load — all packed into one BASIC listing. | Kenneth Majors | Program | |
| Defense | A fast-paced single-alien shooter uses custom UDG graphics, hardware port reads for controls, and a PLOT/DRAW laser beam — how many aliens can you down? | Program | ||
| DEMO64 | A machine code-backed 64-column display system gets a full animated demo and interactive documentation, complete with plot, unplot, print, and clear-screen routines callable from BASIC. | Paul Banasik | Program | |
| Demolish | A one-ball Breakout clone where you steer a paddle with "5" and "8" to smash a row of blocks — can you clear the screen before losing 10 balls? | Program | ||
| Demolition | Launch a bouncing ball to demolish an advancing brick wall across five difficulty levels, with a ten-entry high-score table to chase. | Program | ||
| Demolition | A spacebar-launched ball demolishes a scrolling wall in this arcade game featuring machine code collision detection, UDG graphics, and a five-level high-score table. | Program | SINCUS Exchange Tape 101 - Entertainment | |
| Demolition | A configurable-speed Breakout clone uses SCREEN$ collision detection and custom UDG sprites to smash colored brick rows with a bouncing ball. | Program | CATS Library Tape 1 | |
| Demos2 | Two graphical demos in one program: enter four frequency values to trace Lissajous spirals, or fill a circle using Pythagorean chord calculations. | Program | ||
| Depreciation Schedule | A menu-driven depreciation calculator offering Straight-Line, Sum-of-Years, and Double-Declining Balance methods, plus a side-by-side comparison of all three. | Imre Auersbacher | Program | TS-2068 Computer Programs |
| Derby | Kristian Boisvert | Program | Byte Power November 1986 | |
| Derby Day | A five-race horse racing game where up to five players bet their $50 stakes against randomly generated odds, with animated UDG horses galloping across the screen. | Program | ||
| Designer | A viewport-clipped vector drawing tool that stores line segments as packed binary strings and supports real-time scale and rotation transformations from a menu-driven interface. | Program | Miscellaneous Programs | |
| DEV-Assem | A two-pass Z80 assembler and line editor written in BASIC, complete with label resolution, hex output, tape save/load, and a machine code insert routine. | Program | ||
| DevPac | Powerful and easy-to-use Z80 assembler which is very close to the standard Zilog assembler in definition. | Program | ||
| Diamond Max | You are in a diamond mine and the object is to collect enough diamonds before time runs out, while avoiding falling rocks. Detailed instructions in program. | Eric Boisvert | Program | Byte Power November 1986 |
| Diamond Mike II | Guide diamond-hungry Mike through treacherous caves, collecting gems while dodging falling rocks, creeping amoebas, and deadly butterflies before time runs out. | John Richard Coffey | Program | |
| Dictator | Survive as long as you can by juggling faction loyalties, raiding the treasury into a Swiss account, and dodging assassination attempts in this tense political management simulation. | Program | ||
| Diet | Enter your current and target weight, specify your daily calorie intake, and this program calculates exactly how many days your diet will take. | Program | ||
| DigiClock 2 | A pure-BASIC precision clock uses nested timing loops, BEEP-based calibration, and indirect GO SUB calls via stored line numbers to display large block-graphic digits. | Frank Bouldin (W5GAA) | Program | Fort Worth TS2068 Club Library Tape |
| DIS-ED | A Z80 disassembler and hex editor driven by a self-relocating 2KB machine code module tucked inside a string variable — browse, edit, and execute RAM one keystroke at a time. | Program | ||
| DISA Z | This pure BASIC Z80 disassembler decodes every prefix group—CB, DD, ED, FD—and prints assembly mnemonics from any memory address you supply. | Algis Gedris | Program | |
| Disassembler | A fully menu-driven Z80 disassembler in pure BASIC that decodes all prefix groups, handles IX/IY indexing, and dumps memory as mnemonics, ASCII, or hex/decimal. | Program | ||
| Disassymbl | A BASIC-coded Z80 disassembler decodes opcodes from any memory address, handles CB and ED prefixes, and sends formatted mnemonics to both screen and printer. | Ben H. Jackson | Program | Fort Worth TS2068 Club Library Tape |
| DISM | A two-part Z80 disassembler decodes memory addresses into mnemonics using a tape-loaded 1792-entry instruction table, covering all major opcode prefix groups. | Program | ||
| DODGEM | Steer a custom-drawn sprite through a colorful obstacle field without crossing your own trail — how long can you survive? | Program | ||
| Dog | A charming sprite animation of a walking dog and fire hydrant, built from 21 custom-designed characters loaded at runtime, complete with sound effects. | Harry D. Peters | Program | |
| Doodle | A colourful, noisy joystick doodle pad for small children, complete with a bouncing cross cursor, random ink colours, and directional beeps for every move. | John Riley | Program | CATS Library Tape 2 |
| DoodleJoy | A joystick-driven pixel drawing program uses clever Boolean arithmetic to decode eight-directional movement and wrap coordinates within the screen boundaries. | Program | SINCUS Exchange Tape 102 - Utilities & Business | |
| Doorway | A perspective doorway scene built entirely from PLOT and DRAW geometry — then brought to life with a hypnotic random-colour flash animation. | Program | CATS Library Tape 11 | |
| Dormirians | Navigate alien rooms against a ticking countdown, collect scattered letters, and crack a secret five-letter code before your shuttle departs forever. | Program | ||
| Double Thick Characters | A short machine-code routine transforms the built-in character ROM into a bold double-thickness font, then saves the 768-byte result to tape for use in your own programs. | Program | Timex Sinclair Public Domain Library Tape 2001 | |
| Double-Width Double-Height | A clever pixel-scanning trick renders any short text message in three size combinations — double-width, double-height, or both — using POINT and PLOT. | Keith Skapinski | Program | |
| Dragmaster | Race against the clock in this drag racing simulator — nail your launch, shift through four gears, and watch the tachometer to avoid blowing your engine. | Program | ||
| Dragon's Companion | Cast virtual I Ching coins, decode hexagrams with their ruling lines, and explore trigram attributes — all driven by machine code utilities running in an 85-column display mode. | Richard Hurd | Program | SINCUS Exchange Tape 102 - Utilities & Business |
| Draw | A joystick-driven pixel art tool lets you plot, draw lines, circles, and arcs with on-screen menus, a cursor readout, and optional sound feedback. | Owen Christianson | Program | |
| Draw | A joystick-driven pixel drawing tool with freehand sketching, circle placement, tangent-circle geometry, and XOR-mode erase—all controlled from a single main loop. | S. Rahman | Program | |
| Driver | Steer a UDG-drawn car along a perspective 3D road, fighting random drift and avoiding the verges in this compact BASIC driving game. | Program | ||
| Drop | A ripple-surface 3D plotter uses perspective projection and trigonometric rotation to render z=cos(0.1·(x²+y²)) as a connected wireframe mesh. | James Jones | Program | CATS Library Tape 9 |
| DROP-OUT | Guide a falling ball into a hidden gap using a force value of 1–9, with gravity simulation and custom graphics making each drop uniquely tense. | Program | ||
| DROPABLOCK | Run a construction crane business, drop blocks onto platforms while dodging penalties, and see if you can turn a profit before the workday ends. | Program | ||
| Droppages | A 3-D surface plotter stores multiple rotated views using hand-coded Z80 machine routines, then plays them back as a smooth animation loop. | James Jones | Program | CATS Library Tape 9 |
| Dual Scr 2 | A clever machine code trick switches the display to 64 columns, then splits a demo string across two screen buffers to show off the wider text mode. | Program | ||
| Duet Example 2 | A two-voice Schumann piece uses SOUND with machine-code note data, using a clever volume-dip trick to articulate notes without silencing the channels. | Eric Boisvert | Program | Byte Power December 1986 - January 1987 |
| Dumb Computer Poker | A full five-card draw poker game complete with card graphics, AI betting logic, and a multi-voice chip-tune rendition of "The Gambler" playing between hands. | Lloyd Bowen Jr. | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 |
| Duo-Voice (Beep) | A clever two-voice BEEP music engine that rapidly alternates between voices stored as raw byte data in RAM, simulating polyphony with sentinel values for rests and end-of-tune. | Kristian Boisvert | Program | Byte Power Spring 1987 |
| Earth | Dodge and shoot a drifting alien invader using custom sprite characters, a laser beam drawn with PLOT/DRAW, and lives tracked on screen. | Program | SINCUS Exchange Tape 101 - Entertainment Timex Sinclair Public Domain Library Tape 2004 | |
| Earth Attack | Pilot a spacecraft across a scrolling cityscape, blasting enemies and deploying smart bombs in this machine-code-driven shoot-'em-up with high-score entry. | David Mold, Alvin Albrecht | Program | |
| Earthquake | A Z80 machine code earthquake effect shakes the entire screen, loaded from BASIC DATA statements into a relocatable 80-byte routine you can drop anywhere in memory. | Program | ISTUG Public Domain Library 7 | |
| Easter | Calculate the exact date of Easter Sunday for any year from 1900 to 2099, using a modular-arithmetic algorithm with hard-coded corrections for known edge cases. | Louis LaFerriere | Program | |
| Easy Draw | A dual-mode drawing tool that lets you sketch using block graphics or pixel-level plotting, with color selection, brightness, and fill features all driven from the keyboard. | Program | ||
| EASYprint Word Processor | A tape-based text editor. | Eric Boisvert | Program | Byte Power Spring 1987 |
| EASYsprite | Print any sprite created with the help of EASYsprite MAKER. Up to 255 sprites of different size and shape are allowed. | Eric Boisvert | Program | Byte Power Fall 1987 |
| EASYsprite DEMO | A 1987 sprite engine demo with animated train, aquarium, and boxing scenes, showcasing a machine code utility driven entirely through a custom PRINT channel. | Eric Boisvert | Program | Byte Power Fall 1987 |
| EASYsprite Maker | A sprite editor driven almost entirely by machine code, with a BASIC shell that handles file naming, dynamic address detection, and CODE save/load for sprite data. | Eric Boisvert | Program | Byte Power Fall 1987 |
| EASYtype | Modest, fast loading word processor, not as complex as other, but it does have a lot of features worth using. | Eric Boisvert | Program | Byte Power August 1986 |
| EASYword | This game will allow you to make “funny faces”, in fact, over 3700 different faces can be created with this program. | Eric Boisvert | Program | Byte Power October 1986 |
| ECMview | ECMViewer is a TS2068 program designed to display Timex Extended Color Mode images, as saved from David Anderson’s Retro Pixel Converter. TSPico owners should start with the TSPico specific viewer / slideshow program, ecmvpico.tap / ecmvpico.bas. This will display a number of colorful images in a slide show, and it shows them one by one | Jon Becker | Program | |
| Effects | Two showpiece effects in one program: a relocatable Z80 machine code screen-shaker and a BASIC text animation that explodes a line outward from its center. | Program | ||
| Egg Savior | Guide your character through laser-cannon fire to rescue eggs one by one, depositing each safely before lives run out in this joystick-driven arcade game. | Program | CATS Library Tape 1 | |
| Electric Brain | A clever code-breaking game where the computer tries to crack your secret three-digit number, using an ingenious candidate-scoring system to narrow its guesses. | Program | ||
| Electronics Programs | Three distinct electronics programs in one listing: a 555 timer calculator with drawn schematics, an interactive circuit-design tool with circuit tracing, and an RF coil designer. | Gary Mueller | Program | |
| Eliza | A classic ELIZA psychiatrist chatbot that drives its keyword-matching engine with a separately loaded machine code routine, blending BASIC responses with fast Z80 string searching. | Tim Hartnell, George Chambers | Program | CATS Library Tape 10 |
| Endless Love | A three-channel chip music rendition of "Endless Love" plays syllable by syllable, each word paired with chord voicings and precise beat durations stored in DATA statements. | Program | Timex Sinclair Public Domain Library Tape 2003 | |
| ENORO | A travel-ready currency converter for Mexican peso shopping trips also packs metric unit conversions and plays a classic melody from a DATA-driven music engine. | Program | ||
| Entry | A trippy colour-cycling demo sweeps block graphics across the screen and scatters random text to mimic the strange sights of a heavy loading session. | William Pollock | Program | |
| Envelope Example | A BASIC music demo that manually fades AY chip volume registers to fake an envelope, playing 18 notes with data-driven tone periods and decay rates. | Kristian Boisvert | Program | Byte Power February 1987 |
| Epson 4X Sideways Copy | Send your screen to an Epson dot-matrix printer at 4× size, sideways — in both BASIC and machine code, with raw bit-image printer commands and hardware handshaking. | Keith Skapinski | Program | |
| EPSON COPY | A verified machine code loader that POKEs a Z80 screen dump routine into memory, sending Spectrum display data directly to Epson dot-matrix printers. | Program | ||
| Equations | A simultaneous-equations quiz that generates guaranteed integer solutions and reveals them with flashing highlights — can you beat it before pressing any key? | Program | CATS Library Tape 10 | |
| ERRORS | A compact 25-byte machine code routine, checksum-verified before launch, coaxes all 28 built-in error messages out of the system ROM in one go. | Ed Shaughnessy | Program | |
| ESCHER | Design a 16×16 pixel tile and watch it automatically rotate through four orientations to create seamless Escher-style tessellating patterns, navigable with arrow keys. | Hal Renko, Sam Edwards | Program | |
| Espanola | A four-song Latin music medley — Granada, Perfidia, Brazil, and Solamente Una Vez — plays melody and live chord accompaniment simultaneously from a menu-driven BASIC program. | Program | Timex Sinclair Public Domain Library Tape 2003 | |
| Evergreen | A BASIC rendition of "Evergreen" that synchronizes scrolling lyrics with melody and live three-voice chord accompaniment using AY sound chip register programming. | Program | Timex Sinclair Public Domain Library Tape 2003 | |
| Executive Clue | A text-based murder mystery game randomly picks the killer, weapon, and room, then challenges you to deduce all three before the killer gets you first. | Program | ||
| ExFont 1.1 | A pixel-level font editor lets you redesign any character in the main or user-defined set, then save your custom font as a loadable CODE block. | Randy Moulder | Program | |
| EXP | A fascinating 3D surface plotter that renders Gaussian bell curves with perspective projection and saves multiple rendered frames using hand-POKEd Z80 machine code. | Program | CATS Library Tape 9 | |
| Experiment with OVER | Type any two characters and watch their pixel patterns merge on screen — a hands-on demonstration of how the OVER attribute combines character bitmaps. | Program | ISTUG Public Domain Library 5 | |
| Explosion | Place counters on a grid, force chain-reaction explosions, and outwit a score-evaluating computer opponent in this tense two-player strategy game. | Bob Gilder | Program | |
| Explosion Sound Example | A compact looping tone built from a single SOUND statement hammering seven AY-3-8910 registers at once — hear what envelope shape 8 actually sounds like. | Kristian Boisvert | Program | Byte Power September 1986 |
| EXTENDED BASIC | An interactive tutorial for a nine-command BASIC extension that hooks the error handler to add pixel-level sprite graphics, sound effects, and BREAK-key control via machine code. | Robert Newman, Jack Dohany | Program | CATS Library Tape 3 |
| Extended SCREEN$ | A machine code utility that extends the built-in SCREEN$ function to recognize UDGs and software-generated graphics by scanning screen memory via USR. | Alvin Albrecht | Program | |
| Extended SCREEN$ | A machine code routine that supercharges the built-in SCREEN$ function to recognize UDGs, software graphics, and standard characters by their character codes. | Alvin Albrecht | Program | |
| Factorise | A clever wheel-factorisation algorithm tackles numbers up to 4 billion, working around floating-point limitations with a custom large-number printer. | Program | Timex Sinclair Public Domain Library Tape 2001 | |
| FadeOut | A self-relocating machine code routine POKEs itself into RAM, fills the screen with text, then fades the entire display to black in a smooth animated effect. | Program | Timex Sinclair Public Domain Library Tape 2001 | |
| Fallout | Rotate rows of a barrier grid to align holes and let numbered tokens fall through in this compact, input-driven puzzle game. | Program | ||
| False Echo Example | A short melody player that drives the AY sound chip directly through DATA-encoded triplets, with silence events and smooth volume shaping built in. | Kristian Boisvert | Program | Byte Power November 1986 |
| Fancy Clear Screen | 6 clear screen routines that will give your programs that special something they’re missing. | Kristian Boisvert, Eric Boisvert | Program | Byte Power Fall 1987 |
| Feast Of Classics | Play one of seven tunes. | Eric Boisvert | Program | Byte Power August 1986 |
| ferry | Steer your pixel-sized ferry into narrow docking berths across multiple lives in this tense, color-coded single-key navigation challenge. | D. J. Currie | Program | |
| figForth v1.0 | A complete fig-FORTH built specifically for the TS2068 — bank switching, Timex printer, extended memory and all — and released into the public domain. | Robert Burton | Program | Fort Worth TS2068 Club Library Tape Timex Sinclair Public Domain Library Tape 2001 |
| Fighter Pilot | A combat flight simulation with a full F-15 cockpit, working gauges, air turbulence modeling, and a 15,000-square-mile operational map. | Program | ||
| FILE 1 | A complete menu-driven database system lets you design custom record layouts, sort, search, edit, and archive data to tape using embedded machine code routines. | Program | CATS Library Tape 8 Timex Sinclair Public Domain Library Tape 2003 | |
| FILE+ | A ten-program educational suite covering polynomial math, prime numbers, unit conversion, molecular weight, genetics simulation, and chemistry calculations — all from a single menu. | Program | ||
| file0 | A disk catalog browser with machine code internals lets you scroll through stored files and load any entry with a single keypress — dispatch included. | Rudy A. Hilsmann | Program | SINCUS Exchange Tape 103 - Potpourri |
| FILL | A pixel flood-fill routine lets you navigate a pointer into any enclosed graphic region and fill it solid with a single keypress. | Program | CATS Library Tape 6 | |
| Financial Record Keeper | A full-featured personal finance manager tracks income, payments, tax deductions, and check registers across 20 categories and 12 months with a reconciliation tool. | Mark Fendrick | Program | |
| FIRE | Navigate a firefighter through a spreading blaze while your oxygen drains — one wrong move and the flames will surround you completely. | Program | ||
| Firepower | Pilot a crosshair around a starfield to intercept falling UDG bombs before the 60-second timer expires — scoring depends on how precisely you aim. | Program | ||
| Flexi-Board | A full-featured modem BBS program with machine code serial I/O, message base management, sysop chat, and a clever initialization trick that erases its own setup lines after booting. | Kurt A. Casby | Program | |
| Flexicalc 48 | A full-featured spreadsheet application with formula editing, multi-file tape storage, lock mode, and custom display characters—built entirely in BASIC. | Program | ||
| Flexicon | A business spreadsheet consolidation tool that loads, validates, and arithmetically merges two matrix datasets using tape storage and embedded machine code routines. | Program | ||
| Flexigen | A tape-based report generator lets you slice and reassemble data blocks into custom columnar printouts with configurable widths up to 132 characters. | Program | ||
| Flight Planner | A complete flight-planning calculator that plots your route over a hand-drawn map of the USA, computing wind correction, ground speed, and fuel burn for each leg. | Chuck Dawson | Program | Fort Worth TS2068 Club Library Tape |
| Flight Simulator | A flight simulator with 13 controls, a full instrument panel, a two-airport map, and an in-flight computer for navigation and landing guidance. | Program | ||
| Flight Simulator | A flight simulator with 13 controls, a full instrument panel, a two-airport map, and an in-flight computer for navigation and landing guidance. | Cartridge | ||
| FLIP | A 118-byte machine code routine installs itself in high RAM, letting you flip the entire display upside-down or mirror it horizontally with a single RANDOMIZE USR call. | Program | CATS Library Tape 3 | |
| Flow | An alternate font for the TS 2068. | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 | |
| Flow Chart | This self-documenting utility reads its own program's tokenized memory and draws a live flowchart diagram, classifying every statement type by its keyword token byte. | Program | ||
| Font III | A compact 80-byte machine code routine installs into high RAM and switches your system font between Bold, Modern, Italics, and Regular styles on demand. | Program | SINCUS Exchange Tape 102 - Utilities & Business | |
| Font Library 1 | Fonts for use with Pixel Print Plus. | Bill Ferrebee | Program | |
| Font Library 2 | Fonts for use with Pixel Print Plus. | Bill Ferrebee | Program | |
| Formulary | A complete darkroom reference program stores seven black-and-white film developer formulas with chemical weights and development times, all navigated from a single menu. | Bob Howard (WA6DLI) | Program | CATS Library Tape 3 |
| Fort Worth Temp for December | A hand-crafted Fort Worth December temperature chart plots record highs, record lows, historical averages, and a chosen year's daily readings — all with PLOT and DRAW. | Ben Johnson | Program | Fort Worth TS2068 Club Library Tape |
| Fort Worth TS2068 Club Library Tape | One of the largest single-tape collections anywhere, with over 40 programs spanning flight planning, satellite tracking, hydrology, Forth programming, a 17-game mega-pack, and a complete calligraphic font renderer. A snapshot of a thriving Texas user group at its peak. | David Baulch, Frank Bouldin (W5GAA), Chuck Dawson, Ryan Gray, Robert Burton, Ben H. Jackson | Cassette | "BOLD" Character Subroutine 2068 Art Banner Beep Binary Bounce Breakout Calendar Calligraphy Font Clip Art Clock Code Mover Database DigiClock 2 DISA-Z Disassembler Disassymbl figForth v1.0 Flight Planner Fort Worth Temp for December FUDGE Game Collection Header Hydrology Julian Day KeyScan Linear Optimization By Simplex Method Machine Code Monitor Mail List Menu-Driven Grade Averaging Muzik Master NPolygons OSCAR-TEN Pie Chart PSG Register Scramble Screen Layout Examination Utility Bill Audit |
| FORTRESS | A strategic network-traversal game where an attacker navigates 18 connected nodes to breach a fortress, with single-player AI that scores possible moves using a weighted evaluation system. | Program | ||
| Fortress | You are attacked by Indians and must defend the Fortress. There are 400 Indians on each of the 4 sides of the Fortress and 120 of your men to battle against them. | Kristian Boisvert | Program | Byte Power October 1986 |
| Four Programs | Four programs in one file: a disk and printer utility suite, an animal-identifying expert system, a geography quiz with sound effects for wrong answers, and a Christmas card. | Earl Dunnington | Program | |
| Four Stroke | An animated four-stroke engine diagram cycles through induction, compression, ignition, and exhaust using custom-designed graphics and a piston that really moves. | Program | ||
| Fractal Theatre | Store and play back a "movie" of complex fractal curves by compressing plotted screens into coordinate pairs inside a single string array. | Michael Leidel | Program | |
| Fractals | Three fractal modes in one program — generate 3D terrain, stochastic rock formations, or intricate complex-plane curves, all with configurable colors and optional printer support. | Michael Leidel | Program | |
| French Vocabulary | A colour-rich French vocabulary quiz that randomly selects questions without repeats, rewards correct answers with escalating beeps, and tracks your score across up to 20 words. | Program | CATS Library Tape 10 | |
| Frogger | Guide your frog through scrolling traffic and river lanes in this arcade conversion that uses user-defined graphics and string-array scrolling tricks. | Program | ||
| Frogger | Plays like the arcade game, but without sound. You must avoid traffic, snakes, crocodiles, and treacherous diving turtles by "hopping" the frog. The frog must reach home before the time runs out. | Program | ||
| FUDGE | FUDGE is a complete joystick-driven UDG editor with pull-down menus, pixel grid editing, flip, rotate, shift, animate, and tape save/load for all 21 user-defined graphics. | Ryan Gray | Program | Fort Worth TS2068 Club Library Tape |
| Fun Golf | A procedurally generated golf game for one or two players uses trigonometry, attribute-based terrain detection, and five custom graphics to simulate a full 9- or 18-hole course. | Program | Miscellaneous Programs | |
| Fundamental Analyst | Compare two stocks side by side using eleven fundamental financial ratios, with tape save/load support for preserving and reloading company data between sessions. | Thomas Simon | Program | |
| Funny Faces | This game will allow you to make “funny faces”, in fact, over 3700 different faces can be created with this program. | Eric Boisvert | Program | Byte Power October 1986 |
| Galactic Monsters | Pilot your spaceship through eleven homing monsters using custom-drawn sprites, with enemies growing smarter and faster each wave you survive. | Hal Renko, Sam Edwards | Program | |
| Game Collection | A seventeen-game collection packed into one BASIC program, with a single-keypress menu that dispatches players to puzzles, strategy games, and word challenges. | Program | Fort Worth TS2068 Club Library Tape | |
| Game of Sticks (NIM) | A two-level Nim strategy game where the Expert difficulty uses the mathematically optimal formula to make the computer nearly unbeatable — can you outsmart it? | Imre Auersbacher | Program | TS-2068 Computer Programs |
| Games | Six games in one BASIC collection — a decision oracle, slot machine, space shooter with joystick support, lottery picker, and more — all driven by a smooth cursor menu. | Butch Weinberg | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 |
| Gauss Calculations | Solve systems of up to 20 simultaneous equations using Gaussian elimination with partial pivoting, computing both the solution vector and the matrix determinant. | Program | ||
| GDAP | A customizable function plotter that draws a labeled, scaled graph of any mathematical expression you define, then optionally sends it to the printer. | Dick Ptak | Program | |
| Gem Pattern | Generates progressively more complex rings of randomized diamond and square shapes in XOR draw mode, erasing each image with a four-directional animated wipe before restarting with added complexity. | Program | Miscellaneous Programs | |
| General Purpose Graph Plotter | A 12-file, 12-month bar chart plotter with a two-character command menu, three simultaneous plot positions, and tape save/verify support — all in BASIC. | James DuPuy | Program | |
| Genetics | A configurable mouse population genetics simulator that tracks allele frequencies across 50 generations, complete with a UDG mouse icon and live selection-pressure modelling. | D. J. Currie | Program | CATS Library Tape 10 |
| Geography Quiz | A hand-drawn color map of North America sets the scene for a state-capitals quiz that reads your answer and tells you where you went wrong. | Program | CATS Library Tape 2 CATS Library Tape 6 Long Island Sinclair Timex (LIST) User Group Library Tape #2 | |
| Geometric Patterns | A geometric interference pattern builder that saves its own screen to tape with a user-chosen pause value baked right into the filename. | Program | CATS Library Tape 3 | |
| Ghost Hunters | Kristian Boisvert | Program | Byte Power December 1986 - January 1987 | |
| GHOTI | Guide your fish through a bubble-filled swamp, eating plankton for survival while dodging diving turtles in this arcade game with UDG sprites and a skill-level timer. | Program | CATS Library Tape 6 | |
| Glasswalls | A physics-driven bouncing ball with distinct wall-collision sounds gradually widens its arc across a pixel-drawn enclosure until it comes to rest—then relaunches with more speed. | James Jones | Program | CATS Library Tape 10 |
| Glenagleys | A full 18-hole golf game with procedurally generated courses, eight clubs to choose from, live wind effects, and a separate putting phase complete with scorecard. | Richard Warren | Program | |
| Gobbler | Navigate your gobbler around a field of 100 dots, collecting each one with a beep — and wrap around the screen edges to keep the action going. | Program | ||
| Goblet | Draw a 2D profile, press Enter, and watch it spin into a shaded 3D wire-frame solid — powered by rotation matrices and embedded machine code. | Program | CATS Library Tape 11 | |
| Goblins | Collect eight dungeon treasures in strict order while dodging three relentless goblins—and blast walls open with limited dynamite when your path is blocked. | Jerry Cohler | Program | |
| Golf | A nine-hole text golf game where you pick swing power and random physics determine whether you sink the putt or suffer a two-stroke penalty. | Program | SINCUS Exchange Tape 101 - Entertainment | |
| GPIX | A machine code UDG pixel editor that lets you design custom characters with cursor keys and save them to any of the 21 UDG slots. | Edwin Schoen | Program | |
| Gradebook | A menu-driven gradebook program lets teachers manage a full class roster, record and edit individual grades, calculate percentages, and sort scores for distribution reports. | Jim Brown | Program | SINCUS Exchange Tape 102 - Utilities & Business |
| Grafix | Kristian Boisvert | Program | Byte Power December 1986 - January 1987 | |
| Grafix II | This program will simply create screens… Just sit back and enjoy! | Eric Boisvert, Kristian Boisvert | Program | Byte Power Fall 1987 |
| GrafProgs | A twelve-part suite of text-scaling demos drives a machine code renderer to produce enlarged, colored, and word-wrapped titles across the full screen. | Program | ||
| Grand Prix | A complete Grand Prix racing game hides its entire engine — graphics, sound, and game logic — inside a single REM statement as raw Z80 machine code. | Eric Boisvert, Kristian Boisvert | Program | Byte Power August 1986 |
| Graph | Design your own custom character pixel by pixel — this interactive UDG editor converts binary row input into memory POKEs and previews the result instantly. | Program | ||
| Graph 2 | A self-contained 3D graph renderer uses hidden-line removal and perspective correction to plot a 128×44 data array as a dramatic three-dimensional surface. | Gerald W. Goegelein | Program | |
| Graph Time | Enter a number and watch a unique geometric line pattern emerge — each step value produces a completely different symmetric graphic from just four DRAW commands. | Program | ||
| Graphic | A hypnotic screen-filling geometric pattern built from overlapping diagonal lines, combined with AY sound chip initialization, loops endlessly to create a shifting interference display. | Eric Boisvert, Kristian Boisvert | Program | Byte Power August 1986 |
| Graphic Show | A self-contained BASIC program hides an entire machine code routine inside a REM statement, launching it via USR if a system flag is set. | Eric Boisvert | Program | Byte Power August 1986 |
| Graphical Golf | A complete 18-hole golf simulation with graphical hole layouts, terrain detection via color attributes, percentage-swing iron play, and a seeded random course generator offering thousands of unique layouts. | Program | ||
| GraphicDemo | A mesmerising shrinking geometric pattern built from just four DRAW commands, cycling through two ink colours as it spirals inward iteration by iteration. | John Copps | Program | Timex Sinclair Public Domain Library Tape 2001 |
| Graphics | Six mathematical graphics routines — spirographs, parametric spirals, sine waves, and circle arrays — each driven by user input or looped parameters, all in one program. | Cedric Bastiaans | Program | CATS Library Tape 11 |
| GRAPHICS | A looping graphics showcase cycles through sine waves, spirals, arc-based shapes, and random patterns—each paired with BEEP tones—before restarting automatically. | Program | ||
| GRAVE-YARD | Guide your ghost through a graveyard arena, dodging a randomly wandering specter before a 60-second timer runs out — how long can you survive? | Program | ||
| Gray Blocks | A reusable subroutine that loads six dithered checkerboard patterns into UDG memory to simulate ZX81/TS1000 gray block graphics. | Ryan Gray | Program | |
| Great Circle | Plot the shortest path between any two points on Earth — this spherical trigonometry program converts degrees, minutes, and seconds into nautical and statute mile distances. | Program | ||
| Greeting | A user-group demo combining machine code speech synthesis, animated text routines, and a parametric spirograph plotter driven by user-supplied "magic numbers." | Program | CATS Library Tape 11 | |
| Greeting Card Designer | A full greeting-card studio: design covers and interiors with custom graphics, borders, and text, then print folded cards on five supported printer models. | Program | ||
| GRID 9X | A BASIC program that draws a precision 24×24 pixel grid with registration marks and tick decorations, then sends it to a printer for graphics design work. | Program | CATS Library Tape 8 | |
| Grocery List | A fully interactive grocery list manager prints up to six personalized copies of 100 customizable items, complete with a colorful animated introduction and on-the-fly slot substitution. | Program | ||
| Ground Attack | Defend your base station against alien invaders in this scrolling shoot-'em-up featuring custom sprites, a difficulty-scaled countdown timer, and persistent high-score entry. | Program | ||
| Guardian | Enemy ships have been spotted off your shore. Your mission is to blow them out of the water. | Program | ||
| Gulpman | In Gulpland, a typical Gulpman dashes through a maze of apple trees to satisfy his voracious appetite for apples, but the Wormoids are constantly after him. | Program | ||
| Gyruss | A port of Konami's circular-scrolling arcade shooter, with nine planets to liberate, three enemy waves each, and power-up satellites that upgrade your cannon. | Cartridge | ||
| Halley's Comet | Watch Halley's Comet trace its eccentric elliptical orbit past six planets using Kepler's equation, with live distance and year readouts updating as the animation runs. | Roald Schrack | Program | |
| Halloween | Guide a witch through seven Halloween castle stages, collecting letters to spell EXIT while dodging ghosts, gravestones, and your own poisonous broomstick trail. | Kenneth Fracchia | Program | SINCUS Exchange Tape 103 - Potpourri |
| Hang Man | A complete Hang-Man word game with hundreds of vocabulary words, scoring messages, and a demo mode — all hidden inside a single REM statement and run as machine code. | Eric Boisvert | Program | Byte Power August 1986 |
| HANG-MAN | A fully animated Hangman game with custom graphics, a 400-word vocabulary spanning science to geography, and a clever SCREEN$-based letter-reveal mechanic. | Program | ||
| Hangcat | A two-player word-guessing game with a clever UDG-based animated title that copies ROM font data character by character into custom graphic slots. | Program | SINCUS Exchange Tape 101 - Entertainment | |
| Hanshan | A poetry generator that randomly assembles Tang Dynasty-inspired verse from word and phrase arrays, with probabilistic sound effects between each stanza. | Tim Hartnell | Program | |
| Header | A machine code–assisted tool that intercepts and decodes tape header blocks, revealing file type, filename, length, and start address for any loaded tape. | Program | Fort Worth TS2068 Club Library Tape Timex Sinclair Public Domain Library Tape 2001 | |
| Header | Peek inside a cassette tape's header block — this program decodes file type, filename, and metadata using a clever machine code ROM-switch routine. | Program | SINCUS Exchange Tape 102 - Utilities & Business | |
| Header Reader | Intercept and decode tape header blocks in real time using a hand-coded machine language routine that reads the EAR port directly. | Nazir A. Pashtoon | Program | |
| Header Readers | A dual-mode tape utility that reads and decodes file headers in real time, revealing program type, length, auto-start line, and array variable names via embedded machine code routines. | Program | ||
| Header5 | A machine-code-assisted cassette utility reads tape file headers and reports their contents — file type, name, length, and auto-start line — to screen and printer. | Bill Ferrebee | Program | CATUG Tape 0.0 0001 |
| Headline | A banner printer that reads UDG pixel data directly from memory, transposes the 8×8 bitmap, and expands every pixel into a chunky 4×3 block character on the 2040 printer. | Program | CATS Library Tape 2 | |
| Headscan | Decode what's on any cassette tape before you load it — this utility reveals file type, filename, length, and auto-start line by reading the raw header block. | Program | CATS Library Tape 3 | |
| Helicopter 1 Sound Example | A compact three-line loop drives the TS2068's AY sound chip through multiple registers simultaneously to recreate the thrum of a helicopter rotor. | Kristian Boisvert | Program | Byte Power September 1986 |
| Helicopter 2 Sound Example | A compact looping sound effect that programs the AY-3-8910 chip's registers directly to produce a repeating helicopter-like audio pattern. | Program | Byte Power September 1986 | |
| Helicopter 3 Sound Example | A compact three-line AY chip sound demo programs the envelope, noise, and mixer registers to recreate a helicopter sound effect. | Kristian Boisvert | Program | Byte Power September 1986 |
| Hell's Angels | Your unenviable task to once again defend the Earth from the alien hordes - this time in the shape of angels from Hell and then by a number of demons. | Program | CATS Library Tape 1 Miscellaneous Programs | |
| Hello! | A scrollable, letter-indexed disk program launcher lets you browse and load up to 200 entries, with machine code routines handling drive selection and smooth screen scrolling. | Kristian Boisvert | Program | Byte Power February 1988 |
| HELP | A two-mode interactive help system lets you scroll through command definitions or query a specific keyword by name using a clever dual-DATA-block lookup technique. | J R Mills | Program | |
| HexCon | Convert up to five-digit hexadecimal numbers to decimal by entering each digit position individually, with letter-value reference built right in. | Program | ||
| HEXLOADER | Enter hex bytes directly into memory with automatic address tracking, running checksum management, and a review mode that reads back every POKEd location. | Program | CATS Library Tape 8 | |
| HEXSPEC | A hands-on hex loader that lets you POKE machine code directly into memory, with per-line checksum verification to catch any mistyped bytes. | Program | CATS Library Tape 3 | |
| HIDDENWORD | This BASIC puzzle generator hides your chosen words in a grid across eight directions, fills blank cells with random letters, and sends the result to screen or printer. | George Mockridge | Program | CATS Library Tape 1 |
| HiResHat | A nested-loop parametric surface renderer plots a 3D hat shape using a sum-of-sines height function and an oblique isometric projection — entirely in BASIC. | Program | ||
| HiSoft Pascal | Pascal compiler for the TS 2068, adapted from the version for the ZX Spectrum. | Program | ||
| Home Improvement Planner | A nine-option home improvement planner calculates carpet, paint, and wallpaper estimates from stored room dimensions, complete with graphical dimension diagrams. | Program | ||
| Horace And The Spiders | A three-stage Horace platformer spanning a spider-dodging run, a thread-hopping ravine crossing, and an offensive web-stomping finale. | Cartridge | ||
| Horace and the Spiders | A three-stage Horace platformer spanning a spider-dodging run, a thread-hopping ravine crossing, and an offensive web-stomping finale. | Program | ||
| Horserace | Place your bets on six horses with randomly assigned odds, watch them race across the screen, and see if your punter's bankroll survives the meeting. | Paul Stanley | Program | |
| Horserace | A horse racing game for up to eight bettors, featuring UDG jockeys, a bugle fanfare, and randomized race movement driven by a computed GO TO dispatch table. | Richard Cunningham | Program | |
| Hot Z 2.51 | Disassembler/assembler with data displays, ROM floating-point code display, four letter names for commonly used addresses (built-in and user-defined) and more. | Ray Kingsley | Program | |
| HOT Z Disassembler | Disassembler/assembler with data displays, ROM floating-point code display, four letter names for commonly used addresses (built-in and user-defined) and more. | Ray Kingsley | Program | |
| Household Finance Calculator | A multi-section household finance calculator covering investments, loan amortization, and three depreciation methods — all from a single menu-driven program. | Algis Gedris | Program | |
| How To Enjoy an Expanded Timex 2068 | Paul Holmgren walks through the POKE sequence and system variable adjustments needed to run BASIC and machine code from a 64K NVM board in the TS2068 DOCK port. | Paul Holmgren | Article | |
| HP23 | An engineering program plots horsepower curves for industrial natural gas compressors, running for days unattended while automatically printing hundreds of pressure-ratio charts. | Leroy Keith Watson | Program | |
| HS68 Driver | A BASIC-driven speech synthesis editor lets you record, arrange, and play back a digitized word library stored in high memory, complete with a waveform browser. | Program | ||
| Humorisq | Test your knowledge of comedy legends by matching last names to first names in this 100-comedian quiz with tiered scoring and retry logic. | Joan Kealy | Program | SINCUS Exchange Tape 103 - Potpourri |
| HUNCHY | Guide a hunchback hero across castle ramparts through five unique screens, dodging snipers and swinging on ropes to rescue Esmeralda in this joystick-driven action game. | Program | CATS Library Tape 1 | |
| Hungry Horace | Help Horace tease the park guards by stealing their lunch, eating flowers, and ringing the alarms — but don’t let the guards catch Horace or all is lost. | Cartridge | ||
| Hunter | A hunter fires at a flying bird in this animated scene combining trajectory drawing, AY sound chip programming, and cycling border flash effects. | D. J. Currie | Program | |
| Hydrology | A menu-driven hydrology suite that calculates watershed slopes, draws drainage maps, prepares unit hydrographs, and fits lognormal distributions — all with embedded machine code. | Program | Fort Worth TS2068 Club Library Tape Timex Sinclair Public Domain Library Tape 2001 | |
| Hydrology 2 | A three-module hydrology toolkit that computes rainfall distribution, unit hydrograph convolution, and reservoir storage-routing functions — all driven from a single numeric menu. | Program | Timex Sinclair Public Domain Library Tape 2001 | |
| I Ching | A full I Ching oracle that randomly generates hexagrams using binary arithmetic, displays them graphically, and presents all 64 traditional interpretations with a moving-lines mutation feature. | Program | ||
| I.T. (The Intraterrestrial) | Navigate a 36-room cave, battle monsters with a state-machine AI, and defuse a bomb whose solution hides in a single ASCII arithmetic check. | Program | Miscellaneous Programs | |
| IBM | Three mesmerizing geometric figures unfold through iterative corner-cutting, each grid of spiraling polygons replaced by the next in an endless loop. | Ted Knyszek | Program | |
| Idaho Squares | Crack a cleverly constructed 3×3 number grid where every row sums to 27 — but four cells are hidden and only your arithmetic intuition can restore them. | Tim Hartnell | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 |
| Impossible Triangle | This drawing program builds a famous geometric paradox on screen step by step, complete with randomized sound effects, before revealing its impossible identity. | Frank Bouldin (W5GAA) | Program | Timex Sinclair Public Domain Library Tape 2001 |
| Income Tax 1 | Walk through every line of a 1986 Form 1040 with this interactive BASIC program that calculates your tax liability and prints a fully formatted return summary. | Wally Hayes | Program | ISTUG Public Domain Library 6 |
| Inctax789 | A three-year income tax estimator covering 1987–1989 that handles all four filing statuses, Social Security taxation, IRA deductions, and itemized versus standard deductions. | Max Schoenfeld | Program | ISTUG Public Domain Library 6 |
| Index | A card-filing database using packed string variables for storage, with category/name/modifier search, tape persistence, and print driver. | Dick Cultice | Program | |
| INDEX CARD | Design and print custom cassette tape index cards complete with decorative borders, enlarged title text, and word-wrapped program descriptions — all from a single utility. | Program | ||
| INKEY$ | An eight-byte machine-code routine lets you scan any keyboard half-row for simultaneous keypresses, complete with a tape-save option and interactive demo. | Eric Boisvert, Kristian Boisvert | Program | Byte Power Spring 1987 |
| INPUT | Enter a short string and watch it race across the screen paired with its own inverse-video mirror image in an ever-shifting bouncing pattern. | Program | ||
| Inside Spectrum | An interactive PCB diagram of the ZX Spectrum Issue 3 board, with block-graphic components, vector-drawn bus lines, expansion-port pinout, and detailed on-screen explanations of every chip. | Program | CATS Library Tape 10 | |
| Insurance Property Record | A full home insurance property inventory system that catalogs up to 100 items, supports multi-criteria search, and saves everything back to tape for safekeeping. | Program | ||
| Interest Calculation | A full loan amortization calculator that breaks down monthly principal, interest, and balance — with dual printer support and currency formatting built in. | Kristian Boisvert | Program | Byte Power Fall 1987 |
| INTERPOLATE | A line-by-line interpolated graph builder that scales and plots any twelve data points with smooth linear interpolation between each pair. | Nick Hampshire | Program | CATS Library Tape 3 |
| Invaders | A full Space Invaders clone with UDG sprites, laser shields, a command ship, limited rockets, and persistent high-score tracking across multiple rounds. | Michael Bews | Program | |
| Inventory | An inventory manager that uses machine code at address 55213 and a clever PEEK 65535 dispatch trick to drive its entire BASIC shell. | Kristian Boisvert | Program | Byte Power February 1987 |
| INVERSION | Flip every screen character upside-down, swap in a custom lowercase font, or redirect the system to RAM — all from one multi-entry BASIC utility. | Program | ||
| Invert | Flip every character in the display font upside-down by rearranging glyph pixel rows in RAM, then instantly restore the normal display with a single GOTO. | Program | ||
| Invert | Redirect the font pointer to a RAM copy of the character set, unlocking fully editable custom character shapes across all 96 printable characters. | Program | ISTUG Public Domain Library 6 | |
| Investment | A nine-module personal finance toolkit covering loans, annuities, bonds, life insurance estimates, a calendar, and a utility bill analyzer — all with optional printer output. | Carl Terry | Program | ISTUG Public Domain Library 6 SINCUS Exchange Tape 102 - Utilities & Business |
| Investment/Loan | A full-featured financial calculator solving investments, loans, and cash flows — enter "X" for any unknown and let the program find it automatically. | Algis Gedris | Program | ISTUG Public Domain Library 6 |
| IO with LLIST #5 | A channel-manager utility that interactively extends the OS I/O table, assembling a full I/O driver at runtime using named opcode variables and DATA statements. | William J. Pedersen | Program | |
| IRA Withdrawal | Enter a starting balance, interest rate, and payout period to calculate the exact annual IRA withdrawal that drains the account to zero. | Max Schoenfeld | Program | |
| IRS - 1986 | A full-featured 1986 income tax suite that computes federal 1040, Schedule A itemized deductions, Ohio state tax, and city tax using bracket interpolation across multiple filing statuses. | Algis Gedris | Program | |
| Island | Eric Boisvert, Kristian Boisvert | Program | Byte Power December 1986 - January 1987 | |
| ISTUG Public Domain Library 5 | Explore a first-person 3D maze, watch an audio oscilloscope in real time, draw pixel art with ten drawing modes, or generate random surreal poetry — ISTUG Library 5 is a sprawling collection that covers every corner of the TS 2068 experience. | Cassette | 3-D Maze Audio Graph Experiment with OVER Mental Mania Merge 1 Metric Conversion Minuetz Minuteman Mission Impossible Moire Mona Lissa Money Pail Moon Lander Moonphase Astrology Morse rev2 Mountie Muffin Multi Tape Multiply 1 Multiply 2 Music Beep 1 Music Beep 2 Music Player New CHR$ New York by Night Night Race Numbers Ohio Lottery Ohm's Law Old English Fonts Orbiter Pac Man PAINTsinc Slow Message Sort Demo | |
| ISTUG Public Domain Library 6 | Run a lemonade stand, manage a radio factory through crises, catch drips as a plumber, or compose three-voice music note by note — ISTUG Library 6 balances business simulations and financial tools with arcade action and creative software. | Cassette | Bouncing Text Call the Plumber Cassette Label Maker Composition Editor Income Tax 1 Inctax789 Invert Investment Investment/Loan Jack5 Joystick Jumper Keyword v5 King-Kong L & K Large Characters Laurie Lemonade Stand Life Lissajous Lunar Land Magazine File Magic Square Magnabanner Magnify Magnify12 Make UDGs Manager Manimation Moon Lander New CHR$ Programming Tools Towering Inferno | |
| ISTUG Public Domain Library 7 | Pilot a flight from London, lay pipes against an AI opponent, find planets in the night sky, or teach a computer to guess animals — ISTUG Library 7 mixes strategy and science with some of the most inventive programs in the series. | Cassette | Airplane Death Race Earthquake OVERS 1 Pablo Pixelo Pangolins Patterns 2 Peace Piano Pipeline Pixel Sketch and Graphic Editor PixelPrint Planet Finder Plot demo Poetry Poker 2 Polygons Psychic Q and A Racer | |
| ISTUG Public Domain Library 8 | Solve a virtual Rubik's Cube, guide Santa through five arcade stages, play Scrabble against the computer, or renumber your BASIC programs with machine code precision — ISTUG Library 8 rounds out the Indiana collection with polished games and essential dev tools. | Cassette | 15/20 Word Processor Program 3D Driver 5 Interesting Routines 64 Column BASIC CHR Read and Spell Relocate Renum Renumber 1 Renumber 2 Robot Invasion Rockets RomeoT RSLOAD RubicCube Santa Saturn Lander Saver Scrabble Ships Attack | |
| ISTUG-BBS | A fully-featured BASIC bulletin board system supporting remote callers via modem, with message storage, sysop chat, quick scan, and a password-protected editor. | Paul Holmgren, Willie Jones | Program | |
| Italics | A self-contained machine code generator shifts every ROM character right to fake italics, then saves the 768-byte result as a relocatable font you can drop into any program. | Program | ||
| Jack5 | A two-entity grid game with UDG sprites, SCREEN$-based collision detection, and a high-score name entry system packed into tight BASIC code. | Program | ISTUG Public Domain Library 6 | |
| JazzoFire | Three interconnected programs combine an interactive pixel-art UDG editor, a proportional machine-code font renderer, and a porthole/window graphics demo into one impressive package. | Program | ||
| Jingle Bells | A BASIC rendition of "Jingle Bells" that layers AY chip chords beneath a BEEP melody using computed GO SUB dispatch and clever data encoding tricks. | Patrick Spera | Program | Miscellaneous Programs |
| JLO SAFE DOS v2.35 | ROM image for use with John Oliger disk drive system. | ROM | ||
| JLO SAFE DOS v2.65 | A full-featured disk operating system that intercepts BASIC errors to add disk commands, NMI STATE saves, multi-printer screen dumps, and dual-ROM compatibility. | ROM | ||
| Joystick | Guide a randomly colored symbol anywhere on screen using joystick directional values, with boundary checking and a second button to randomize the character itself. | Program | ||
| Joystick | A joystick-driven drawing toy that trails randomly colored symbols across the screen, with a fire button that switches the brush character on the fly. | Program | ISTUG Public Domain Library 6 | |
| Joystick Wrapper | A joystick demo moves a cursor around the full screen with edge wraparound and diagonal movement, all packed into a handful of clever BASIC expressions. | Martin DeBoniface | Program | |
| JRC Catalog | A shareware cassette catalog bundles a fully playable 3D Tic-Tac-Toe AI, a graphics demo, and candid commentary on the home computer market into one remarkable program. | John Richard Coffey | Cassette | |
| Julian Day | A two-way Julian Day Number converter that handles BC dates, century corrections, and day-of-week calculation via a clever shared subroutine. | Ben H. Jackson | Program | Fort Worth TS2068 Club Library Tape |
| Jumper | Dodge two independently scrolling obstacle rows using five custom sprites and a lives system — all packed into a tight BASIC movement and collision loop. | Program | ISTUG Public Domain Library 6 | |
| Just Another Spreadsheet! | A machine-code spreadsheet with a BASIC shell that uses PEEK 65535 as a jump table to hand control back to its own engine after every operation. | Kristian Boisvert | Program | Byte Power February 1987 |
| Keno | Pick 10 numbers from a field of 81 in this casino-style Keno game, where matching all 10 pays out at one-million-to-one odds. | Bob Howard (WA6DLI) | Program | CATS Library Tape 1 |
| Keyboard Memory | A keyboard-based memory matching game that hides numeric codes behind 18 keys arranged in a grid — find all 9 pairs in the fewest turns to beat your best score. | Program | ||
| Keyboard Tutor | A typing tutor that draws a UDG keyboard on screen, scores your keystrokes in real time, and reports accuracy as a percentage. | Program | Miscellaneous Programs | |
| KeyScan | A tiny 25-byte machine code routine slots itself just above RAMTOP and returns real-time two-key keyboard state — callable from BASIC with a single USR expression. | Program | Fort Worth TS2068 Club Library Tape Timex Sinclair Public Domain Library Tape 2001 | |
| Keyword v5 | A machine code keyboard utility that lets you type BASIC keywords as plain text gets a slick animated loader with tape and disk backup support. | Jack Dohany | Program | CATS Library Tape 3 ISTUG Public Domain Library 6 |
| King-Kong | Navigate a multi-story building, dodge patrolling gorillas, and defeat the giant ape in this attribute-collision arcade game with a custom character set and frame-counter timer. | Program | ISTUG Public Domain Library 6 SINCUS Exchange Tape 101 - Entertainment Timex Sinclair Public Domain Library Tape 2004 | |
| Kingdom | A five-year kingdom management game where players juggle floods, famine, and thieves — with animated raiders and a market economy — to become the wealthiest ruler. | Paul Holmgren | Program | Miscellaneous Programs |
| Kitchen Chaos | Guide a frying pan across the kitchen floor to catch falling eggs in this sprite-animated arcade game with original music and hand-crafted UDG characters. | Program | Timex Sinclair Public Domain Library Tape 2004 | |
| Knight Fight | Two knights charge across the screen in this equipment-buying jousting game, where armour, lance weight, and RND combine to decide who takes the hit. | Program | Miscellaneous Programs | |
| Knight's Tour | A backtracking Knight's Tour solver lets you pick any board size up to 8×8, find solutions, and print the completed board via machine code. | James Brezina | Program | |
| Knight's Tour | Move your knight through all 64 squares of the board using regular knight’s moves. | Eric Boisvert | Program | Byte Power August 1986 |
| L & K | Load multiple full screens into memory and play them back as a slideshow, driven by a compact Z80 machine code routine installed at runtime. | Program | ISTUG Public Domain Library 6 | |
| Label Maker | This label-making utility centers up to four lines of user text on a printer and runs off as many copies as you need — all with live preview and confirmation. | Program | ||
| Label Maker | A cassette label printer utility that centers up to four text lines, previews them on screen, then LPRINTs as many copies as you need. | Bill Ferrebee | Program | |
| LABEL PRINT | A four-line label printer utility that centers text automatically, switches printer pitch modes via direct port output, and bootstraps through machine code loaded from tape. | Algis Gedris | Program | |
| LANDER FIX | Pilot a rotating lander across five procedurally drawn moonscapes, managing fuel and speed to touch down safely on every pad before your ships run out. | Program | ||
| Language Usage | A grammar drill suite covering verb agreement, pronoun usage, homonyms, and more, with timed tests, per-category scoring, and custom UDG logo graphics. | Program | ||
| Large Characters | Watch every printable character from the ROM font rendered as a giant 8×8 pixel grid, one at a time, with clever bit-extraction arithmetic. | Program | ISTUG Public Domain Library 6 | |
| Large Text | Type up to 16 characters and watch the program scan and redraw your text at magnified size, with a beep for every pixel found. | Program | SINCUS Exchange Tape 102 - Utilities & Business | |
| Laurie | Draw joystick-controlled pixel art frame by frame, saving each one as raw memory code — this animation tool even embeds its own machine code bootstrap. | Program | ISTUG Public Domain Library 6 | |
| Lazer Bars | A six-key shooter where you dodge falling laser bars and blast invaders overhead, with UDG sprites and attribute-based collision detection driving the action. | Program | ||
| Lazer Zone | Caught between a llama's wrath and a laser battle in 6-space, you have no choice but to champion your race with skill and glory. | Jeff Minter | Program | |
| LEAKING | Guide your bucket across the screen to catch 30 random drips of water — can you beat your own high score in this quick arcade challenge? | Program | ||
| Lemonade Stand | Manage a week-long lemonade stand, balancing weather, pricing, and random vandal attacks in this economics simulation with animated block-graphic shopfront. | Program | ISTUG Public Domain Library 6 | |
| Life | A full Conway's Life implementation with a cursor-driven cell editor and machine-code evolution engine, loaded from tape and driven by a BASIC menu shell. | Program | CATS Library Tape 10 ISTUG Public Domain Library 6 | |
| Life Insurance Estimater | A step-by-step life insurance estimator walks you through income, Social Security benefits, time horizons, and assets to calculate your exact coverage gap. | John Colonna | Program | SINCUS Exchange Tape 102 - Utilities & Business |
| LIFE TABLE | An actuarial life-table calculator that tracks survival and event probabilities across multiple intervals, applying standard censoring adjustments for withdrawn or lost subjects. | D. J. Currie | Program | |
| Lights | A randomized bouncing-pixel light show that changes colors on every move and resets with a new background whenever it hits the screen edge. | Program | ||
| Linear Optimization By Simplex Method | A full Simplex Method solver that handles mixed constraints, artificial variables, and Big-M penalties — printing the complete tableau at every iteration until the optimal solution is found. | Program | Fort Worth TS2068 Club Library Tape Timex Sinclair Public Domain Library Tape 2001 | |
| Linear Regression | Enter paired X/Y data, correct any mistakes, then watch this statistics utility plot the scatter graph and fitted regression line with R² accuracy. | D. J. Currie | Program | |
| Linear Search | A RAM-based file manager and keyword search tool that pokes records directly into memory and calls machine code to hunt through them instantly. | Thomas B. Woods | Program | |
| Lines | A mesmerizing string-art animation traces ruled surfaces between two moving paths, erasing old lines automatically with inverse plotting for smooth, endless motion. | Program | ||
| Lissajous | Watch continuously morphing Lissajous curves drawn in real time using parametric sine and cosine equations with an ever-shifting frequency ratio. | Program | ISTUG Public Domain Library 6 | |
| List Phone | A menu-driven telephone directory that stores contacts as DATA statements and retrieves them by name, with options to search, print, and save your phone book. | Lloyd Goad | Program | |
| LISTS | A fully configurable flat-file database lets you define custom fields, then add, edit, delete, search, sort, and save records — all from a simple numbered menu. | Program | CATS Library Tape 3 | |
| Loader V | A terminal-program companion that stores 20 phone numbers, auto-redials with a try counter, and loads text buffers from tape with configurable carriage-return options. | Kurt A. Casby | Program | |
| Loan Amortization 2068 | Enter a loan amount, term, and interest rate to get a fully formatted amortization schedule showing payment-by-payment interest, principal, and balance breakdowns. | Imre Auersbacher | Program | TS-2068 Computer Programs |
| Loan Compare | A handy loan payment calculator that crunches amortization math and lets you print or re-run results with a single keypress. | John Colonna | Program | SINCUS Exchange Tape 102 - Utilities & Business |
| Loco Motion | Drive your locomotive across the countryside, dodging obstacles and hauling cargo at full steam. | Cartridge | ||
| Lollipops | Guide your lollipop through a candy field, collecting flavors by color while avoiding the deadly peppermint — a clever ATTR-based detection game with joystick support. | Warren Fricke | Program | |
| Long Island Sinclair Timex (LIST) User Group Library Tape #2 | Track the OSCAR 10 satellite, design Bézier curves interactively, take a geography quiz on a hand-drawn map of North America, or hear the Olympic fanfare — LIST Library Tape 2 is a well-curated selection of practical and creative programs. | Cassette | 3 Axis Bar Chart Bank Reconciliation BigChar Bold Char Design Clock Confusion Curve Curve 2 Geography Quiz Olympiad OSC-10C Spanish Tutor Tag Varslist Video Tape File Weekly Taping Schedule | |
| Long Island Sinclair Timex (LIST) User Group Library Tape #2.2 | A focused supplement to the LIST library — play 3D Tic-Tac-Toe with three difficulty levels, design smooth curves with an interactive Bézier tool, and inspect or load machine code byte by byte. | Cassette | 3D Tic Tac Toe BOLD Curve MCEDIT MCLOADER | |
| Long Island Sinclair Timex (LIST) User Group Library Tape #7 | The biggest LIST tape yet — play poker accompanied by chip-tune renditions of classic songs, diagnose illnesses with a Bayesian expert system, master Z80 opcodes with a quiz, or unscramble anagrams before the cauldron boils over. Four custom fonts included. | Cassette | 2Col LLIST Addition 1 Awful Anagram Black Jack Broadway Caloriburn Character Charecter4 Codeloader Color Bars Crasher Dating Game Daysheet Dumb Computer Poker Flow Games Idaho Squares Med-Expert Memory Mat Multisort Notes On Your Mark Opcode Vocabulary Builder Parchisi Prelude by Chopin Scroll Showdown Sidescroll Slant Spectrum Golf Spin The Bottle Spooky Star Spangled Banner Tick Tack Toe Tomorrow Lies in Ambush! Tracer Treasure Hunt Variable A Video Graph Word Pro | |
| Lost In 3D | Eric Boisvert | Program | Byte Power February 1987 | |
| Lottery | A lottery picker that generates ten sorted six-number selections and uses a clever cascading-insertion sort entirely in plain BASIC variables. | Michael Kudelka | Program | |
| Lotto | Custom lottery number generator; you define the number and range. | Kristian Boisvert | Program | Byte Power February 1988 |
| Lunar Land | Guide a crippled survival capsule to a safe lunar touchdown while your engines randomly deteriorate — every second counts in this physics-based lander game. | Program | ISTUG Public Domain Library 6 | |
| M*5 | Guide the starship M*5 safely to Moon Base 2 by answering 36 planet-trivia questions before your calculated speed hits zero and you crash. | Program | Miscellaneous Programs | |
| Machine Code Monitor | A full machine code monitor lets you examine, edit, enter, save, and run memory—complete with hex/decimal toggle and Z80 scroll routines POKEd in at startup. | Program | Fort Worth TS2068 Club Library Tape Timex Sinclair Public Domain Library Tape 2001 | |
| Machine Code Shell-Faulk Sort | A machine code Shell-Faulk sort tackles 100 random ten-character strings, with BASIC handling parameter passing via strategic POKEs before handing off to a 249-byte routine. | Robert Fischer | Program | |
| Machine Code Tutor | 33 lessons on two cassettes. Instructions include examples and exercises to learn machine code. Includes a simulated assembler. | Cassette | ||
| Magazine File | A menu-driven magazine article database packs up to 500 records into a string array, with subject search, bubble sort printing, and a character-by-character record editor. | Alan Friedman | Program | ISTUG Public Domain Library 6 |
| Magic Square | Enter a starting number and a step value to instantly generate and print an arithmetic magic square where every row, column, and diagonal shares the same sum. | Program | ISTUG Public Domain Library 6 | |
| Magnabanner | Print giant magnified banner text in four typographic styles using pixel-level font reading, machine code type rendering, and user-selectable fill characters. | Program | ISTUG Public Domain Library 6 | |
| Magnify | Type two lines of text and watch each character balloon into a bold block-graphic display — with printer output — using a clever pixel-reading trick. | Program | ISTUG Public Domain Library 6 | |
| Magnify12 | Blow up any text to giant banner size by pixel-sampling each character and reprinting it with your choice of block-graphic fill characters — on screen and printer simultaneously. | Program | ISTUG Public Domain Library 6 | |
| Mail List | A complete tape-based mailing-list manager for a T/S user group, with member records, label printing, and a machine-code printer patch all bundled together. | Program | Fort Worth TS2068 Club Library Tape | |
| Mailing List | A tape-based mailing label manager using machine code dispatch, dynamic CODE block sizing, and a block-character deletion flag to suppress records from printing. | Kristian Boisvert | Program | Byte Power February 1987 |
| Majesti-Calc | A personal finance tracker that manages bills and income across parallel arrays, with printer support and machine code enhancement. | Bernard Souchek | Program | |
| Make UDGs | Design custom graphic characters pixel by pixel on an 8×8 grid, then compile, save, load, and edit them with this interactive UDG generator tool. | Charlie Day | Program | ISTUG Public Domain Library 6 |
| Manager | Run a radio factory through weekly crises — union strikes, flood damage, and supplier hikes — balancing wages, workforce, and pricing to avoid bankruptcy. | Tim Hartnell | Program | ISTUG Public Domain Library 6 |
| Mandelbrot Generator | Explore the Mandelbrot set with interruptible 160×160 iteration, tape-based session save/resume, hard-copy output, and UDG-mapped character rendering. | Gerald W. Goegelein | Program | |
| Mandelbrot Set | Explore the Mandelbrot set with character-mapped iteration shading and color banding — user-defined boundaries let you zoom into any region of the complex plane. | William J. Pedersen | Program | |
| Manimation | A walking stick-figure animation that pushes the UDG system to 80 characters by swapping multiple graphics tables on the fly using direct memory POKEs. | Program | CATS Library Tape 6 ISTUG Public Domain Library 6 SINCUS Exchange Tape 101 - Entertainment Timex Sinclair Public Domain Library Tape 2004 | |
| Master Chess | Complete chess engine for the Timex Sinclair 2068. It's entirely self-contained with no ROM calls - all I/O is custom. | Program | ||
| Mastermind | Break a randomly generated 4-digit code in 20 tries, earning Black and White peg feedback through a clever digit-marking algorithm. | Program | ||
| Math | A four-operation math drill lets students practice addition, subtraction, multiplication, and division with score tracking and a custom division symbol built from a UDG. | John Colonna | Program | SINCUS Exchange Tape 101 - Entertainment Timex Sinclair Public Domain Library Tape 2004 |
| Math Wizardry I | A two-part place-value tutor that drills addition and subtraction digit by digit, animating carry and borrow steps with custom sprites and an interactive score display. | Program | ||
| Math Wizardry II | A two-part math trainer guides children step-by-step through multiplication tables and long division, with a growing train graphic that rewards correct answers. | Program | ||
| MC Renumber | Machine code routine to renumber programs. Uses lines 0 and 9999. | Program | Miscellaneous Programs | |
| MC-MOVE | A BASIC-driven Z80 machine code relocator that rewrites embedded 16-bit addresses opcode-by-opcode, letting you move assembled routines to a new memory location safely. | Program | CATS Library Tape 8 | |
| mcdis | A merge-friendly Z80 disassembler with hex input, a labeled-address dictionary, and a companion machine code block — all packed into a tidy menu-driven toolkit. | Dick Scoville | Program | |
| MCEDIT | A compact memory editor lets you walk through RAM byte by byte, inspecting and patching machine code values interactively from the keyboard. | Program | CATS Library Tape 3 Long Island Sinclair Timex (LIST) User Group Library Tape #2.2 | |
| MCLOADER | A machine code loader that POKEs decimal bytes into memory near RAMTOP, computes a checksum, and then tells you exactly how to SAVE the result to tape. | Program | CATS Library Tape 3 Long Island Sinclair Timex (LIST) User Group Library Tape #2.2 | |
| MCUtil | A seven-function machine code toolkit lets you browse, load, relocate, and convert memory contents, topped off with a self-modifying BASIC line renumberer. | Program | ||
| Med-Expert | A rule-based medical expert system uses Bayes' Theorem to diagnose over 90 illnesses by asking symptom questions scored on a -5 to +5 scale and iteratively updating disease probabilities. | Pete Fischer | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 |
| mem test | A bare-metal RAM checker that writes three selectable bit patterns across memory, instantly pinpointing any address that fails to read back correctly. | Program | ||
| Memory | Match all 8 pictures, the lower your score the better. | Kristian Boisvert | Program | Byte Power November 1986 |
| Memory Mat | Flip numbered tiles to uncover playing cards and match all 26 pairs in this concentration game that tracks your choices and rewards memory. | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 | |
| Memory Monitor | Explore RAM one byte at a time with this interactive memory inspector — navigate forward, restart, print, or stop via a simple menu system. | Program | ||
| Memscan | A compact 34-byte machine code routine scans your system's memory map and reports what's installed — all launched from a tiny BASIC loader. | Russell English | Program | SINCUS Exchange Tape 102 - Utilities & Business Timex Sinclair Public Domain Library Tape 2001 |
| Mental Mania | A five-disc Tower of Hanoi challenge with joystick support, colorful block-graphic discs, a 100-move limit, and a printer-ready move history. | James DuPuy | Program | ISTUG Public Domain Library 5 |
| Menu-Driven Grade Averaging | A four-mode teacher's grade book that calculates weighted averages across a six-week period and prints formatted report cards directly to a 2040 printer. | Joan Kealy | Program | Fort Worth TS2068 Club Library Tape |
| MenuE | A single-keypress disk-directory manager stores up to 24 labeled boxes of 20 entries each, with add, delete, and move operations in a packed string array. | Bob Swoger (K9WVY) | Program | |
| Merge 1 | A tape-based mail-merge utility uses an embedded machine code block-copy routine to assemble personalized letters from a template and data file. | Program | ISTUG Public Domain Library 5 Timex Sinclair Public Domain Library Tape 2003 | |
| Messiah | A hand-crafted banner routine combines cycling border colors, multi-register AY sound chip music, and block graphic characters to create a striking animated title display. | Dave Franson | Program | SINCUS Exchange Tape 101 - Entertainment Timex Sinclair Public Domain Library Tape 2004 |
| Metric Conversion | A 17-category imperial-to-metric converter that uses a compact comma-delimited factor string and a computed GO TO dispatch table to handle everything from teaspoons to tons. | George Chambers | Program | CATS Library Tape 8 ISTUG Public Domain Library 5 |
| Micro-Wafer Test Program | A diagnostic utility that stress-tests removable wafer media by saving and verifying dozens of test files, then reports free capacity and lists any bad sectors found. | Program | ||
| Minesweeper | A pixel-perfect Minesweeper clone with three difficulty levels, mouse support, and a faithful Windows-style interface packed into a single game. | Alvin Albrecht | Program | |
| MINOTAUR | Navigate a first-person 3D maze, collect three hidden weapons, and survive a wandering enemy in this text-and-graphics dungeon crawler. | Program | CATS Library Tape 1 | |
| Minotaur | You are lost in a maze and you must find the exit while avoiding the minotaur. | Kristian Boisvert | Program | Byte Power August 1986 |
| Minuet in G | A faithful BASIC arrangement of Bach's "Minuet in G" drives hardware sound registers for two- and three-voice polyphony with a flashing title screen. | Carl Chada | Program | CATUG Tape 0.0 0001 |
| Minuetz | Roll dice or let the computer decide as this algorithmic composition program builds musical scores, renders notation on-screen, and plays them back through machine code routines. | Program | ISTUG Public Domain Library 5 | |
| Minuteman | A countdown from 10 to liftoff drives this missile launch simulation, complete with rising beep tones and an ASCII rocket that scrolls upward across the screen. | Program | ISTUG Public Domain Library 5 | |
| MIRROR | A geometric drawing program plots diagonal fans and a trigonometric arc, then mirrors the entire composition pixel-by-pixel across the screen's vertical axis. | Program | ||
| Miscellaneous Programs | A grab-bag of hidden gems — chat with an ELIZA therapist, play Boggle in three languages, navigate a 36-room cave to defuse a bomb, joust as a medieval knight, or generate random surreal poetry. Includes three holiday card programs. | Cassette | Aid Basic Renumber Boggle Bridge Concentration Constellations December 25 Designer Fun Golf Gem Pattern Hell's Angels I.T. (The Intraterrestrial) Jingle Bells Keyboard Tutor Kingdom Knight Fight M*5 MC Renumber Patterns Poker Pontoon Quest Skyplot Slot Stock Exchange Tree Word Images | |
| Mission Impossible | Guide a nuclear operative through a robot-patrolled power station, collecting fourteen fuel rods before radioactive runaway — with custom sprites and laser hazards. | Program | ISTUG Public Domain Library 5 SINCUS Exchange Tape 101 - Entertainment Timex Sinclair Public Domain Library Tape 2004 | |
| Mister Butterfly | Kristian Boisvert | Program | Byte Power Spring 1987 | |
| Model Plane Designer | Design and visualize a radio-control model airplane in top, side, and front views, with automatic CG calculation, wing loading, and area ratios — all interactively adjustable. | Program | ||
| Modem | A pulse-dialer and auto-launcher that drives a phone line through the expansion port, detects a carrier, then hands off to a machine-code terminal — all in BASIC. | Program | Timex Sinclair Public Domain Library Tape 2001 | |
| Moire | Five hypnotic geometric light-show routines chain together, using XOR drawing, system variable PEEKs, and bouncing coordinates to fill the screen with evolving abstract patterns. | Program | ISTUG Public Domain Library 5 | |
| Moire Patterns | Two sets of crossing lines drawn with XOR pixel logic build mesmerizing moiré interference patterns that regenerate in a new random color every cycle. | Peter Jennings | Program | |
| Mona Lissa | A rendition of a woman in black and white (no color attributes used). Not a typo: contains a SCREEN$ file that is definitely not the Mona Lisa. | Program | ISTUG Public Domain Library 5 | |
| Money Manager | A full-featured personal finance manager tracks monthly income, expenses, assets, liabilities, and budgets, complete with text-based bar graphs and loan repayment tracking. | Paul Holmgren | Program | |
| Money Pail | Dollar bills rain from the sky — move your pail with two keys, catch up to five bills, then rush to the bank before more money falls past you. | Program | ISTUG Public Domain Library 5 SINCUS Exchange Tape 101 - Entertainment Timex Sinclair Public Domain Library Tape 2004 | |
| Monitor and Disassembler | Disassembler and machine code monitor: display and edit registers, edit code, and move blocks of memory. | Program | ||
| Monster | Guide your character across procedurally built platforms, collect jewels, eliminate monsters, and race a timer that accelerates with each kill in this action game. | Program | ||
| Montezumas Revenge | American version of Panama Joe. | Cartridge | ||
| Months Budget | A color-coded monthly budget tracker managing 14 expense and 14 income entries, using penny-scaled integer arithmetic to sidestep floating-point errors. | Richard Cunningham | Program | |
| Moon Lander | Guide your lunar lander across five hand-crafted moonscapes, juggling thrust, rotation, and fuel while dodging meteors and sticking every landing pad. | Program | ISTUG Public Domain Library 6 SINCUS Exchange Tape 101 - Entertainment | |
| Moon Lander | Guide a lunar lander to a safe touchdown using thrust and rotation controls, with machine code sprites and collision detection driving the action. | Program | CATS Library Tape 1 ISTUG Public Domain Library 5 | |
| Moon Phase Calculator | A year-by-year lunar phase calculator using real astronomical algorithms, complete with trigonometric corrections and selectable screen or printer output. | Imre Auersbacher | Program | TS-2068 Computer Programs |
| Moon Rescue | Pilot a lander through scrolling alien terrain, rescue stranded astronauts, and dock with a moving mothership before your ships run out. | Program | ||
| Moonphase Astrology | Enter any calendar date and this program calculates the Moon's ecliptic longitude in degrees using a multi-term astronomical polynomial expansion. | Program | ISTUG Public Domain Library 5 | |
| Morse | A three-mode Morse code trainer that plays dots and dashes as tones, teaches the full alphabet, encodes typed messages, and quizzes you with a scored test. | Program | ||
| Morse rev2 | Type any letter or digit and hear its Morse code beep out in dots and dashes, with a user-chosen pitch — all in under 50 lines of BASIC. | Program | ISTUG Public Domain Library 5 | |
| Mortgage | A three-mode mortgage calculator that computes monthly payments, maximum home prices, and affordability checks from income — all built around shared BASIC subroutines. | Program | Timex Sinclair Public Domain Library Tape 2003 | |
| Mountie | A Mountie on horseback springs to life from a cleverly encoded string of digit pairs, then scrolls a red "R.C.M.P." caption across the screen. | D. J. Currie | Program | ISTUG Public Domain Library 5 |
| Moving Averages | A time-series moving-averages program that handles even and odd periods, computes centred averages, and lets you chain multiple smoothing passes interactively. | Program | Timex Sinclair Public Domain Library Tape 2001 | |
| Moving Waves | A hypnotic animated wave plot uses sine-driven coordinates and an error-trap handler to keep running until something inevitably goes wrong. | Everett Pence | Program | CATS Library Tape 9 Timex Sinclair Public Domain Library Tape 2004 |
| Mozart | A complete rendition of Mozart's K. 545 sonata encoded purely in BEEP commands, with clever transposition tricks and reusable pattern subroutines packed into under 200 lines. | Program | CATS Library Tape 10 | |
| Mr Me! | Pacman like video game. | Eric Boisvert | Program | Byte Power February 1987 |
| MScript | Machine language word processor developed exclusively for the Timex 2068 by Micro Systems Software, Inc. | Program | ||
| MScript (AROS, Tasman) | Machine language word processor developed exclusively for the Timex 2068 by Micro Systems Software, Inc. | Program | ||
| MScript (FD68) | Machine language word processor developed exclusively for the Timex 2068 by Micro Systems Software, Inc. | Program | ||
| MScript (Original) | Word processor developed for Timex by Micro Systems Software, Inc. | Program | ||
| MTERM | Terminal program supplied with TS 2050 modem. | Program | ||
| MTerm II | Terminal program supplied with TS 2050 modem. | Cartridge | ||
| MTerm II | Terminal program supplied with TS 2050 modem. | Program | ||
| MTOS | A multi-program memory manager lets you keep a whole suite of utilities resident at once, switching between them by poking the BASIC program pointer directly. | T. G. Morley | Program | CATS Library Tape 6 |
| Muffin | A hypnotic animation loop draws a random character across a random screen row, then wipes it away — endlessly repeating with fresh values each cycle. | Program | ISTUG Public Domain Library 5 | |
| Multi Tape | A tape cataloging utility that POKEs machine code to read raw cassette headers and stores up to 400 program entries across searchable arrays. | Program | CATS Library Tape 8 ISTUG Public Domain Library 5 Timex Sinclair Public Domain Library Tape 2003 | |
| Multi-Draw 2068 | Draw with joystick control of dual-multi-function screen cursors which draw, print, define characters, change colors, flash, save/load or print our your creations. | Program | ||
| MULTIFILE+ | A full-featured string database manager with Quicksort, multi-field search, record deletion, and tape save — all packed into a single BASIC program. | Algis Gedris | Program | CATS Library Tape 8 Timex Sinclair Public Domain Library Tape 2003 |
| Multiply | A multiplication quiz that rewards correct answers with an arcade money-catching game, complete with UDG sprites, chip sound, and a running bank balance. | George Chambers | Program | CATS Library Tape 10 |
| Multiply 1 | A pure-BASIC long multiplication routine handles numbers of any digit length, using string input and a carry-propagation array to deliver exact results. | George Chambers | Program | ISTUG Public Domain Library 5 |
| Multiply 2 | A two-part educational game combines timed multiplication drills with a falling-money arcade challenge where correct math earns your chance to catch dollar bills with a pail. | George Chambers | Program | ISTUG Public Domain Library 5 |
| Multisort | Merge this bubble sort routine into your tape catalog program and it will alphabetically sort program names, titles, and numeric data — even if it takes hours. | Bob Malloy | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 |
| MultiTask | A machine code multitasker grafts ten new BASIC commands—including AFTER, EVERY, ON ERROR GOTO, and ON BREAK GOSUB—onto the interpreter using an IM 2 interrupt vector and a replacement statement loop. | Program | ||
| Munchie Man | A joystick-driven Pac-Man clone uses nine custom sprite characters, an ASCII-art maze, and a randomly wandering ghost to challenge your dot-eating reflexes. | Program | CATS Library Tape 6 | |
| Music | A compact music player that drives a three-voice sound chip with just one loop and 54 DATA values to perform an original 18-note melody. | Kristian Boisvert | Program | Byte Power August 1986 |
| Music | A hypnotic random music generator. | Program | ||
| Music Beep 1 | A BASIC music player that draws synchronized scrolling note rectangles on screen while playing multiple tunes through BEEP, with notes packed cleverly into DATA statements. | Program | ISTUG Public Domain Library 5 | |
| Music Beep 2 | A multi-song BASIC music player that precomputes an equal-temperament frequency table and uses polyphonic sound hardware to play melodies with synchronized on-screen graphics. | Program | ISTUG Public Domain Library 5 | |
| Music Demo | A two-channel PSG rendition of a Beatles classic plays with randomized tempo, chained error recovery, and a seamless load of the next music piece. | C. Y. Choy | Program | |
| MUSIC Demo | This program will play 5 tunes. Just press A-E to select the music. Demo for MUSIprint. | Eric Boisvert | Program | Byte Power February 1988 |
| Music Play | This music player reads three-byte note records from a binary block at address 60000, programming the AY sound chip directly for metallic envelope tones. | Eric Boisvert | Program | Byte Power November 1986 |
| Music Player | A three-mode music program lets you compose tunes by typing letters, play a graphical keyboard in real time, or unleash a randomised bird-call synthesiser. | Program | ISTUG Public Domain Library 5 | |
| Musical Christmas with TS 2068 | A BASIC Christmas jukebox plays Silent Night, Jingle Bells, and Joy to the World using clever DATA-driven note sequencing and ON ERR end-of-song detection. | Oleg D. Jefimenko | Program | |
| Musical range | Watch block graphics trace a path across the screen while BEEP sweeps through a wide musical range, then descends with a swooping sound effect. | Program | ||
| MusicBox1 | A 14-piece music player lets you choose any composition, then adjust tempo and transposition by semitone before or after playback. | Program | ||
| MusicBox2 | Eight folk and popular songs play through the BEEP command, with chord-name overlays, adjustable tempo, and continuous-loop playback all built into one compact music player. | Program | ||
| MusicBox3 | A three-channel music player with selectable compositions, adjustable tempo, and looping modes — all driven by carefully encoded DATA statements. | Program | ||
| MusicBox4 | A multi-voice music player stores complete compositions as DATA statements, blending three-channel synthesis with melody and adjustable tempo control. | Program | ||
| Musician Royal | A full-featured music composition editor that lets you enter notes by name, handles key signatures, supports tempo changes, and saves your melody for later playback. | Oleg D. Jefimenko | Program | |
| Musician Royal Demo | A six-piece demo album player that lets you queue, sequence, and loop compositions, with tempo scaling encoded right into each song's data stream. | Oleg D. Jefimenko | Program | |
| Musicola | A full-featured music composition tool that displays notes on a grand staff, supports harmony and chord generation, and can store thousands of notes for playback or printout. | Program | ||
| Musicomp 1 | A machine-code music composer whose BASIC shell juggles two separate tape CODE blocks and reads runtime addresses via PEEK to manage save and load operations. | Eric Boisvert | Program | Byte Power February 1987 |
| MUSIprint | This music utility will allow you to play music using the LPRINT (PRINT #3) command. | Eric Boisvert | Program | Byte Power February 1988 |
| Muzik Master | A playable two-octave piano keyboard with flashing key animations, sharp/flat labels, and a built-in melody demo hidden behind a single keypress. | Frank Bouldin (W5GAA) | Program | Fort Worth TS2068 Club Library Tape |
| My Girl | A three-voice music player that sequences a recognizable melody by cycling through carefully arranged SOUND register data with mid-song section jumps. | Program | ||
| Mystery Manor | Follow a ghostly Victorian heroine's diary clues through 29 haunted rooms in exactly ten moves — but the correct path is mathematically hidden in the data. | Joan Kealy | Program | |
| Navy | Kristian Boisvert | Program | Byte Power December 1986 - January 1987 | |
| Net Present Value | A financial analysis tool that computes Net Present Value and Internal Rate of Return for multi-period investments, complete with iterative IRR search and sensitivity analysis. | Program | Timex Sinclair Public Domain Library Tape 2001 | |
| Network | A mesmerising line-burst pattern redraws itself endlessly in randomly chosen colour combinations — watch a geometric network bloom from a single screen point. | Program | CATS Library Tape 11 | |
| New Chars | A compact loader patches two system variables to install a custom character set from a saved code block — here's how it redirects the UDG pointer at runtime. | Program | CATS Library Tape 11 | |
| New CHR$ | Flip your entire character set upside-down, load hand-crafted letter shapes, or restore the ROM font — all by jumping to a single line number. | Program | ISTUG Public Domain Library 5 ISTUG Public Domain Library 6 | |
| New York by Night | Guide your antimatter flying disc against waves of descending aliens threatening a procedurally generated nighttime cityscape, with difficulty levels and UDG sprite graphics. | George Chambers | Program | ISTUG Public Domain Library 5 Timex Sinclair Public Domain Library Tape 2004 |
| Newscript | A self-destructing font generator that rewrites the ROM character set byte-by-byte into RAM, then hands you a bolder typeface and vanishes. | Program | CATS Library Tape 11 | |
| Night Gunner | You are gunner and bomber whose task is to defend your plane against enemy attack and destroy ground targets in 30 different missions. | Program | ||
| Night Race | Guide a UDG-sprite car down a shifting night road, dodge oncoming traffic, and chase a persistent high score in this pure-BASIC racer. | Program | ISTUG Public Domain Library 5 | |
| Nightfall | Guide your craft through a torrential rainfall, dropping bombs and dodging collisions in this arcade game that uses custom graphics and display-file collision detection. | Tim Hartnell | Program | Timex Sinclair Public Domain Library Tape 2003 |
| Nodes | Enter a node count and scale factor to watch every point on a circle connect to every other point in an intricate geometric web. | Program | ||
| Notes | A user-group tape header program displays club guidelines on copyright, compatibility, and error-fixing — a candid snapshot of early hobbyist software sharing practices. | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 | |
| NPolygons | Enter any number from 3 to 30 and watch every vertex pair of a regular polygon get connected, revealing intricate geometric star patterns built from pure BASIC trigonometry. | Frank Bouldin (W5GAA) | Program | Fort Worth TS2068 Club Library Tape Timex Sinclair Public Domain Library Tape 2001 |
| Numbers | Enter any number and watch a 4×4 magic square appear — every row, column, diagonal, and corner group sums to your chosen value. | Program | ISTUG Public Domain Library 5 | |
| Ocean Defense | Drop depth charges on enemy subs while intercepting their missiles in this scrolling naval action game featuring custom graphics and two difficulty levels. | Program | ||
| Ohio Lottery | Pick your lucky numbers with this two-mode lottery generator that ensures unique draws and supports both screen copy and line printer output. | Algis Gedris | Program | ISTUG Public Domain Library 5 |
| Ohm's Law | Enter any two electrical values and this Ohm's Law calculator instantly derives voltage, current, resistance, and power using all six possible formula pairs. | Program | CATS Library Tape 10 ISTUG Public Domain Library 5 | |
| OKI DLPG | Convert a screen image into downloadable character data for an Okimate 20 printer, with machine code processing and detailed printer control codes provided on-screen. | John McMichael | Program | |
| Okimate 20 Downline Loadable Character Generator | Design custom printer characters pixel-by-pixel with a joystick-driven crosshair editor, then transfer them directly to an Okimate 20 printer via machine code routines. | John McMichael | Program | |
| Old English Fonts | An interactive decorative font compositor renders large, multi-row Old English glyphs on screen, driven by swappable machine code character tables and a full editing keyboard. | Program | ISTUG Public Domain Library 5 | |
| Olivetti Desktop Publisher | A two-column desktop publishing system that reads text from REM statements, supports custom fonts, and drives an inkjet printer through embedded machine code routines. | Charles Stelding | Program | |
| Olympiad | A faithful recreation of the Olympic fanfare complete with five-ring graphics and a custom animated character that tracks each note as the melody plays. | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #2 | |
| Omnicalc 2 | Spreadsheet designed to make full use of the TS2068. Up to 99 columns or 250 rows. | Program | ||
| On Your Mark | Pick your favorite runner and watch eight UDG-animated racers sprint across the screen in this BASIC horse-race game with sound and flashing results. | Fred Blechman | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 |
| Opcode Vocabulary Builder | A randomized quiz on Z-80 CPU opcodes and architecture challenges you to name registers, flags, addressing modes, and instructions from detailed text clues. | Patrick Fagan | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 |
| Opus | Twenty custom bitmap tiles assemble into a single composite of Opus the Penguin, the character from Bloom County. | Program | Timex Sinclair Public Domain Library Tape 2004 | |
| Orbiter | Predict when polar-orbiting weather satellites will pass overhead, complete with azimuth and elevation data for aiming your antenna at each incoming pass. | Charles Judge | Program | ISTUG Public Domain Library 5 |
| OS-64 Utilities #1 | Collection of utilities for use with OS-64 cartridge. | Program | ||
| OSC-10C | Track the OSCAR 10 amateur satellite in real time with this BASIC orbital propagator that plots world maps, computes azimuth and elevation, and displays phase and range data. | Bob Howard (WA6DLI) | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #2 |
| OSCAR-TEN | A complete OSCAR-10 satellite tracker that plots world maps, calculates Doppler shifts, and displays live azimuth/elevation for 18 cities worldwide. | Frank Bouldin (W5GAA) | Program | Fort Worth TS2068 Club Library Tape |
| OUAH! Sound Example | A Byte Power demo fires up the AY sound chip with a single SOUND statement, then silences it on a keypress — minimal code, maximum bark. | Kristian Boisvert | Program | Byte Power September 1986 |
| Out Music | A 18-note melody blasted directly through PSG chip registers using OUT commands — pitch, duration, and two-channel harmony packed into a compact DATA table. | Kristian Boisvert | Program | Byte Power February 1987 |
| OverDemo | Enter a line count and toggle OVER mode to draw radial spoke patterns that can either build up or cancel themselves out on screen. | Program | Timex Sinclair Public Domain Library Tape 2001 | |
| OverDemo2 | A mesmerizing random-line drawing program that pairs every stroke with a pitch-varying beep, using XOR pixel mode for an ever-shifting interference pattern. | Program | Timex Sinclair Public Domain Library Tape 2001 | |
| OVERS 1 | See what happens when two characters share the same screen cell — this interactive tool visually demonstrates XOR overlay printing with instant labeled results. | Roger Valentine | Program | ISTUG Public Domain Library 7 |
| Pablo Pixelo | Design custom 8×8 pixel characters, pack them into pictures, and watch a self-verifying machine code routine power a "Big-Bits" display feature in this complete UDG toolkit. | Michael Carver | Program | ISTUG Public Domain Library 7 |
| Pac Man | A Pac-Man clone with custom UDG sprites, a procedurally drawn nested maze, pursuing enemy AI, and a persistent high-score name entry — all in BASIC. | Program | ISTUG Public Domain Library 5 | |
| Pachizee | Classic race-and-chase board game for 2 to 4 players, with the objective of moving all four of your pawns from the "nest" to the central home space before opponents do | Kristian Boisvert | Program | Byte Power February 1988 |
| PAINT | A full-featured pixel art studio with eight drawing modes, joystick support, flood fill, scalable copy, arc drawing, and ink/paper color control — all in BASIC. | Mike Rhees | Program | |
| PAINTING | A color-by-number painting game where you reveal a hidden picture one color at a time by selecting digits that flood-fill matching screen regions. | Program | ||
| PAINTsinc | A complete pixel-art drawing program with ten drawing modes, joystick support, flood fill, scalable copy, and attribute-level color control packed into one BASIC listing. | Mike Rhees | Program | ISTUG Public Domain Library 5 |
| Pairs | Can you match all ten hidden picture pairs in as few guesses as possible — this BASIC memory game uses dynamically swapped UDGs to render high-resolution images. | Program | SINCUS Exchange Tape 103 - Potpourri | |
| Pangolins | A self-learning animal guessing game that grows its own binary decision tree at runtime — teach it new creatures one wrong guess at a time. | Program | ISTUG Public Domain Library 7 | |
| Paradox | Enter a fraction of the speed of light and watch Einstein's Twin Paradox unfold across a 16-year relativistic journey, with age differences shown to the nearest second. | John Pazmino | Program | |
| Parakeet | A self-looping generative sound program that drives the AY-3-8912 chip through random frequency sweeps, noise bursts, and probabilistic pauses to create endless ambient tones. | Program | CATS Library Tape 10 | |
| Paranoid | This game is quite simple all you have to do is to repeat what the computer does. The key are in this game [1],[2],[3] and[4] accordingly with the square you are pressing. | Eric Boisvert | Program | Byte Power August 1986 |
| Parchisi | A fully playable four-player Parcheesi board game with computer opponents, custom pawn graphics, and hex-encoded board paths packed into BASIC strings. | Cedric Bastiaans | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 |
| Patience | A solitaire card game that renders fully pip-illustrated playing cards on screen and challenges you to clear the deck by matching pairs totaling eleven or J-Q-K runs. | Program | ||
| Patterns | Draw a 16×16 pixel pattern, watch it spin through four rotations encoded as UDGs, then scroll it freely around the screen. | Program | Miscellaneous Programs | |
| Patterns 2 | Two mesmerizing pattern modes — randomized diagonal line fills and symmetrically mirrored pixel scatter — cycle through colors in this hypnotic display generator. | Program | ISTUG Public Domain Library 7 | |
| PC-Draw v3.0 | A multi-component PCB artwork design system that drives parallel printer interfaces to produce photo-ready circuit board negatives, with configurable driver POKEs for five interface types. | Duane Malburg, Michael Davis | Program | |
| PCB Aid | Design printed circuit boards to any length: this BASIC program generates a scaled dot-grid template complete with custom UDG characters and a printer-ready layout. | John McMichael | Program | |
| Peace | A multi-mode sticker generator that combines custom UDG artwork with printer output to produce peace-dove graphics or personalized address labels. | Program | ISTUG Public Domain Library 7 | |
| Penetrator | High-speed arcade-type game in which you fly your ship over hills and through tunnels to bomb the enemy base without getting shot down. | Program | ||
| Penetrator | High-speed arcade-type game in which you fly your ship over hills and through tunnels to bomb the enemy base without getting shot down. | Cartridge | ||
| pentzy | A six-player Yahtzee-style dice game with a sophisticated computer AI opponent that evaluates dice combinations and scoring strategy across twelve rounds of play. | Program | ||
| Perimipics | Draw a picture tile-by-tile using cursor keys or joystick, then watch it compress into nine reusable user-defined graphic characters automatically. | John McMichael | Program | |
| Perpetual Calendar 2068 | Enter any month and year from 1583 onward and watch a graphically drawn monthly calendar grid appear, fully calculated using Zeller's Congruence arithmetic. | Imre Auersbacher | Program | TS-2068 Computer Programs |
| Personal Home Finance | A comprehensive financial toolkit covering simple interest, loan payoff, compound growth under five compounding frequencies, present value, and net present value — all with built-in input validation and an illustrated instruction module. | Program | ||
| Personal Net Worth | Track your complete financial picture by entering assets and liabilities across 27 categories, then watch a formatted net worth statement print out automatically. | Program | SINCUS Exchange Tape 103 - Potpourri | |
| Personal Portfolio Manager | A full-featured stock portfolio tracker that handles purchases, sales, price updates, and gain/loss reports across up to 50 holdings with cassette tape file storage. | Program | ||
| Personal Secretary | A split-screen personal organiser from that combines a computed monthly calendar, an appointment diary, a searchable phone book, and mailing-label printing in one BASIC program. | Program | ||
| Phone Book | A tape-based phone book that packs 250 contacts into a fixed-width string array and saves entry counts to a clever two-byte machine address on tape. | Kristian Boisvert | Program | Byte Power September 1986 |
| Phone Tone | Enter any phone number and hear each digit play back as authentic dual-tone DTMF signals, complete with inter-digit silence, using the sound hardware directly. | James Palumbo | Program | |
| PHONE WORD | Type in the last four digits of your phone number and discover every possible word it could spell using classic telephone keypad letter mappings. | David Hartman | Program | |
| PHONEDIR | A six-option telephone directory manager packs names and numbers into a 200-entry string array with built-in sorting and substring search. | Program | ||
| Phoneme Editor | A full-screen phoneme sequence editor drives a speech synthesis peripheral, letting you compose, insert, delete, replace, and speak phoneme strings stored directly in RAM. | Program | ||
| Piano | A playable piano simulator with custom UDG key graphics, three octave modes, and nine adjustable note durations—all driven by a single BEEP command per keypress. | Program | CATS Library Tape 10 ISTUG Public Domain Library 7 | |
| PIANO FUN | Record, replay, and save keyboard-played melodies using a computed GO TO dispatch that maps keypresses directly to musical note frequencies. | Program | ||
| Pie Chart | An interactive pie chart generator that draws trigonometric slices from user-supplied percentages, then lets you add labels and a centered title. | Program | SINCUS Exchange Tape 102 - Utilities & Business | |
| Pie Chart | A fully interactive pie chart generator that pulls individual slices, labels them with trigonometry, and relies on TASWIDE for wide text output. | Ryan Gray | Program | Fort Worth TS2068 Club Library Tape |
| PieChart | A polar-coordinate pie chart renderer that uses dot density and angle ranges stored in DATA lines to fill wedges with evenly spaced points. | Program | CATS Library Tape 2 | |
| Pigskin Picks | Enter each team's scoring stats and let this football predictor crunch the numbers to forecast which side comes out on top. | Tom Proffitt | Program | |
| Pinball | High-scoring, fast-paced pinball game includes shooting the ball, bumper action, nudge for those good bounces and flip-action flippers. | Program | ||
| Pipeline | A two-player pipe-laying strategy game with a built-in AI opponent, three pipe shapes drawn with PLOT/DRAW, and a machine code BASIC flow-tracer hidden in its own listing. | Program | ISTUG Public Domain Library 7 | |
| Pitcher | A nine-inning baseball game with animated pitching, strategic swing choices, and base-running logic tracks your team of nine named players against the computer. | Program | ||
| Pix Fix | A two-mode pixel art editor with machine code routines handles drawing, erasing, screen panning, tape save/load, and even partial-screen saves in three sizes. | John T. Nguyen | Program | CATS Library Tape 2 |
| Pix-FX | A multi-effect screen image editor that wraps pictures around a globe, shifts perspective, and merges screens using powerful machine code routines called from a tidy BASIC menu. | Michael DiRienzo | Program | |
| Pixel Print Desktop Publisher v1 | A desktop publishing suite for newsletter creation supporting columnar text import from Tasword, type scaling up to 32 times standard width, and four built-in fonts with optional expansion via the Font Package accessory tape. | Stan Lemke | Program | |
| Pixel Print Font Utility Package 1 | A three-part font design suite lets you build, edit, and download custom pixel-print character sets directly to a dot-matrix printer using an interactive grid editor. | Stan Lemke | Program | |
| Pixel Print Graphics | Graphics for use with Pixel Print. | Steve Spalding | Program | |
| Pixel Print PLUS! | Desktop publishing program, WYSIWYG (what you see is what you get). | Stan Lemke | Program | |
| Pixel Sketch and Graphic Editor | A comprehensive pixel art and graphic editor with machine code acceleration, three video modes, joystick navigation, and over a dozen drawing and manipulation tools packed into one program. | Stan Lemke | Program | ISTUG Public Domain Library 7 |
| PixelPrint | A machine code routine lets you place text strings at any pixel position on screen, with independent x and y displacement between characters for diagonal or scrolling effects. | Cameron Hayne | Program | ISTUG Public Domain Library 7 |
| Planet Ephemeris 2068 | A full solar system ephemeris program computes planetary positions, sidereal time, and zodiac coordinates for any date across five centuries of history and future. | Imre Auersbacher | Program | TS-2068 Computer Programs |
| Planet Finder | Calculate where any planet, the Sun, or the Moon sits among the zodiac constellations for any date, then see it plotted on a schematic star chart. | Eric Burgess | Program | ISTUG Public Domain Library 7 |
| Planet Finder | Collection of astronomical images and information. | Michael Zerbo | Program | |
| Plot | Enter axis ranges and data, then watch this BASIC plotter render a scaled XY chart complete with tick marks, connected line segments, and a rotated vertical Y-axis label. | Owen Christianson | Program | |
| Plot demo | A hidden-line 3D surface plotter with optional crosshatching, ported from a BBS download, uses a horizon-array technique to suppress depth-obscured lines. | Ted Knyszek | Program | ISTUG Public Domain Library 7 |
| Plotter | A cursor-driven freehand plotter lets you draw, erase, and annotate the high-resolution screen with keyboard controls, then save or print your artwork. | Harry Johnson III, Gary Swartz | Program | |
| Plukkers Hunt | Eric Boisvert | Program | Byte Power November 1986 | |
| Poetry | A random poetry generator that picks words from fifteen thematic lists and assembles them into moody, surreal four-line verses — generating a fresh poem every few seconds. | Program | ISTUG Public Domain Library 7 | |
| Poetry 2 | A random-poetry generator assembles surreal free verse from themed word lists, producing a new poem each time with subjects ranging from prophets to robots and mutants. | Program | ||
| Point Of Sale Cash Register | A full-featured point-of-sale cash register program with binary search, Shell sort, receipt printing, tax calculation, and tape-based inventory storage. | Imre Auersbacher | Program | TS-2068 Computer Programs |
| Poker | A fully playable five-card draw poker game pits you against a bluffing computer dealer, complete with betting, drawing, hand evaluation, and a watch-pawning emergency fund. | Program | CATS Library Tape 1 SINCUS Exchange Tape 101 - Entertainment Timex Sinclair Public Domain Library Tape 2004 | |
| Poker | A fully featured draw poker game with custom card graphics, a computerised opponent that reasons about its hand, and a complete betting system — all in BASIC. | Program | Miscellaneous Programs | |
| Poker 2 | A complete draw poker game where you bet against the computer, with shuffling, hand evaluation, card drawing logic, and a full betting system packed into BASIC. | Tim Hartnell | Program | ISTUG Public Domain Library 7 |
| Polygons | Watch every polygon from 4 to 20 sides fill with all possible diagonals, each one computed and drawn with a neat combinatorial formula on screen. | Program | ISTUG Public Domain Library 7 | |
| POLYNOMIAL | Fit a polynomial of any degree up to 9 through up to 20 data points, then evaluate the result at any x — all using least squares and Cramer's rule. | Program | ||
| Pong | A two-player Pong clone with a circular UDG ball sprite, ATTR-based collision detection, and five-goal match play — all in BASIC. | Program | ||
| Pontoon | Pontoon game with UDG-drawn playing cards — rounded box-frame cards displaying suit symbols and face values — and a running cash balance against a randomly resolved dealer hand. | Program | Miscellaneous Programs | |
| Poojan | A three-stage arcade shooter with user-defined graphics, a bonus system, animated enemy wolves, and a full Hall of Fame name-entry screen. | Jerry Cohler | Program | |
| Popeye | Implementation of the arcade game. | Cartridge | ||
| Popup Menu | A joystick-controlled popup menu framework with UDG-drawn border boxes and a five-item menu bar, ready to drop into a graphics application. | Mowgli Assor | Program | |
| Post Mania | Guide Harold through a hazard-filled post office — dodging conveyors, tractor, and trap doors — to recover his letters before the one o'clock mail delivery. | Bret Richdale | Program | |
| Prelude by Chopin | A BASIC program plays Chopin's Prelude through a three-channel sound chip, with adjustable tempo and continuous-loop options driven by hundreds of register values. | Oleg D. Jefimenko | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 |
| Print and Copy IBM | A program to support printing on the Okimate 20 printer. | John McMichael | Program | |
| Print Sizer | A machine code–powered text scaler lets you render any string at custom height, width, slant, shading, and inverse settings with a single USR call. | Program | ||
| Printer Driver | A parallel printer port installer that patches system channel tables, loads multiple machine code screen-dump routines, and walks you through every configuration option step by step. | John Oliger, Tom Kalogerson, Thornton Benson | Program | |
| ProFile +5 | A full-featured BASIC database manager with Boolean search, a built-in screen editor, machine code sorting, and tape-based CODE block file storage for multi-field records. | Thomas B. Woods | Program | |
| ProFile 2068 | Thomas B. Woods | Program | ||
| Profile 2068 AROS | Program to copy Profile 2068 to non-volatile RAM in the cartridge slot. Type LOAD “” and follow prompts. Contents: | Thomas B. Woods | Program | |
| ProFile 2068 AROS | Machine language information storage and retrieval database for the 2068, configured specifically to run as a cartridge. | Thomas B. Woods | Cartridge | |
| ProFile with Machine Code | A full-featured flat-file database with a custom screen editor, machine code search routines, formatted printing, and tape load/save — all in BASIC. | Thomas B. Woods | Program | |
| Program Checksum | This BASIC line-checker walks every program line in RAM, computing and printing a per-line checksum that could reveal tampering or corruption. | John Bell | Program | |
| Programming Techniques for the Timex Sinclair TS 2068 | A showcase of screen animation techniques — teletype reveals, sprite movement, curtain effects, scrolling messages, and a dramatic blackout transition — all demonstrated in BASIC. | Program | CATUG Tape 0.0 0001 | |
| Programming Tools | Four machine code utilities — auto line numbering, a step tracer, a custom function key, and user-defined keys — packed into a single BASIC loader using IM2 interrupts. | Program | ISTUG Public Domain Library 6 | |
| ProPinball | Cartridge | |||
| Proportional Printing | A self-building proportional text engine that compresses ROM fonts on the fly and patches the LPRINT channel to render neatly spaced characters on screen. | Wes Brzozowski | Program | SINCUS Exchange Tape 102 - Utilities & Business |
| PSG Register | An interactive PSG register editor that reads, displays, and writes all 15 sound chip registers live — showing binary and decimal values simultaneously. | Program | Fort Worth TS2068 Club Library Tape Timex Sinclair Public Domain Library Tape 2001 | |
| PSGE 32/64 | Convert any standard 32-column screen to a 64-column hi-res layout using five modes, machine code routines, and built-in checksum verification. | Stan Lemke | Program | |
| Psychic | A self-working letter-finding trick that uses matrix transposition to "psychically" home in on any letter the user secretly selects from a shuffled grid. | Richard W. McDaniel | Program | ISTUG Public Domain Library 7 |
| Q and A | A customizable quiz game that randomizes question order, scores two attempts per question, and gives letter-hint clues before revealing the answer. | Program | ISTUG Public Domain Library 7 | |
| Q.E.D. (Quick Editing Device) | Simple text editor with the ability to print mailing labels. | Bob Swoger (K9WVY) | Program | |
| Qber | Eric Boisvert | Program | Byte Power December 1986 - January 1987 | |
| QBert | Guide your hero diagonally across a hazardous board, collecting eggs and dodging two enemies, in this faithful arcade conversion with joystick support and a high-score table. | Werner Kaelin | Cartridge | CATS Library Tape 1 |
| QBert | A port of the 1982 Gottlieb arcade game, with a color-cycling isometric pyramid, UDG characters for Q*Bert and enemies, and all the classic hazards intact. | Cartridge | ||
| QBERT | A BASIC Q*bert clone with joystick control, procedurally drawn isometric pyramid, UDG sprites, and ATTR-based collision detection across escalating difficulty sheets. | Program | ||
| QRL | A compact RLE graphics manager with machine code encode, decode, invert, and wipe routines lets you store, load, and manipulate compressed screen images from cassette. | Jack Dohany | Program | CATS Library Tape 9 SINCUS Exchange Tape 102 - Utilities & Business |
| Quadra Chart | A four-window business charting suite that renders bar, pie, line-pie, and line charts side by side, with machine-code screen-buffer swapping for instant window switching. | Program | ||
| Quest | A full 42-location pirate treasure hunt where the map is encoded in a compact DATA table and a roaming antagonist can snatch your hard-won loot. | Program | Miscellaneous Programs | |
| Question & Answer Test Generator | A self-contained quiz authoring tool that lets you type questions and answers, saves them to tape, then tests you with hints and a two-attempt scoring system. | Program | CATS Library Tape 10 | |
| Quick Chord | A plug-in chord library for three-channel sound hardware, providing GOSUB targets for major, minor, diminished, and augmented chords ready to drop into any program. | Program | ||
| Quizmaster | Build your own quiz, get hints when you're stuck, and earn bonus points for first-try answers — then save the whole thing as a standalone program. | Program | CATS Library Tape 10 | |
| Quizmaster | A 25-question randomized quiz engine covering literature, Z80 mnemonics, and movies challenges your exact-spelling recall across multiple subject areas. | Joan Kealy | Program | SINCUS Exchange Tape 103 - Potpourri |
| Quizomania | Quiz on the Presidents of the United States, countries of the world and their capitals, or states of America (also provinces of Canada) and their capitals. | Kristian Boisvert | Program | Byte Power Fall 1987 |
| R-Header 2068 | This cassette header reader decodes all four tape file types—program, numeric array, string array, and bytes block—straight from raw header data with a 31-byte machine code loader. | Real Gagnon | Program | |
| Rabbit Raid | Guide your rabbit through a randomizing maze while a relentlessly accelerating weasel closes in — collect carrots for big bonus points if you dare. | Program | ||
| Racer | Pick your racer, place your bet, and watch nine competitors sprint across the screen in this BASIC racing game with UDG sprites, sound effects, and a world-record timer. | Program | ISTUG Public Domain Library 7 | |
| Rainbow Riot | A hypnotic four-way-symmetric arc drawing uses random curves and direct memory POKEs to flood the result with kaleidoscopic color. | Program | ||
| Ramdizk | A compact machine code RAM disk utility loads at a fixed address and activates with a single RANDOMIZE USR command. | Program | ||
| Random Colors | Program | |||
| Random Fan | A mesmerising animated fan pattern traces lines between opposite perimeter points with randomised colours, using a hand-rolled vector line-drawing routine instead of DRAW. | Program | CATS Library Tape 2 | |
| Read & Spell | A memory-training spelling game that flashes a phrase, hides it, then checks your typed answer — with a subtle string-comparison trick buried in the logic. | Program | CATS Library Tape 10 | |
| Read and Spell | A deceptively simple reading-and-spelling quiz picks a random phrase, times how long you see it, then checks your typed answer with a subtle first-character loophole. | Program | ISTUG Public Domain Library 8 | |
| Reader 1 | Peek inside your own BASIC program's raw token stream, byte by byte, with this self-reading memory inspector that decodes addresses and character values live. | Program | ||
| Reader 2 | Peek behind the curtain of BASIC itself — this memory walker decodes your program's raw bytes, revealing line numbers, lengths, tokens, and hidden five-byte number constants. | Program | ||
| Real Echo Example | A two-voice echo music player for that staggers the same melody across two SOUND channels to simulate a real acoustic echo effect. | Eric Boisvert, Kristian Boisvert | Program | Byte Power December 1986 - January 1987 |
| Real Estate | A suite of eight mortgage and property financial calculators, from monthly payments to rental analysis, dispatched via a clever arithmetic GO SUB expression. | Program | ||
| Records 1 | A five-field song search engine that scans hundreds of LP catalog entries, prints matching album details, and even survives tape MERGE operations with clever memory tricks. | James Brezina | Program | |
| Records 2 | A multi-keyword record collection search tool that prints full album details, survives tape-based data swaps, and covers dozens of labeled LP catalogs. | James Brezina | Program | |
| Relocatable AERCO Driver V4 | A full-featured configuration utility that customizes an 800-byte relocatable machine code print driver for eight different dot-matrix printers without touching a single assembler. | Jack Dohany | Program | |
| Relocate | A BASIC-driven Z80 machine code relocator that copies a routine to a new RAM address and automatically patches embedded absolute jump and call targets. | Algis Gedris | Program | ISTUG Public Domain Library 8 |
| Relocate | A hands-on BASIC loader that builds a 12-byte Z80 block-copy routine in memory, letting you permanently relocate machine code above RAMTOP with a single USR call. | Program | ||
| REMIZE | Embed a binary tape file inside a BASIC program as a REM statement, then transmit it over modem just like ordinary BASIC source code — and extract it back to tape on the other end. | Edwin Schoen | Program | |
| Renum | A two-pass BASIC renumbering utility that patches both line headers and embedded floating-point GO TO targets directly in memory — no ROM calls needed. | Program | ISTUG Public Domain Library 8 | |
| RENUM63000 | Program will RENUMBER almost any BASIC program. It will renumber GOTO, GOSUB, RESTORE, RUN, LIST, etc. | Eric Boisvert | Program | Byte Power August 1986 |
| Renumber | A machine code renumbering utility packed into hex DATA strings rewrites every GOTO, GOSUB, and RESTORE target across your entire BASIC program automatically. | Charles Stelding | Program | |
| Renumber | A Z80 machine code renumbering utility packed into 48 hex DATA strings rewrites every GO TO, GO SUB, and RESTORE reference throughout your BASIC program automatically. | Charles Stelding | Program | Timex Sinclair Public Domain Library Tape 2001 |
| Renumber | A memory-poking BASIC renumberer lets you reassign a chosen range of program lines to a new start number and step, all without any machine code. | Roger Valentine | Program | SINCUS Exchange Tape 102 - Utilities & Business |
| Renumber 1 | A machine-code-powered BASIC renumbering tool lets you reassign line numbers across a range, prompting for start, step, and stop values with surgical precision. | Program | ISTUG Public Domain Library 8 | |
| Renumber 2 | A direct-memory BASIC renumbering tool that rewrites line numbers in place using PEEK and POKE on the program's own stored structure. | Roger Valentine | Program | ISTUG Public Domain Library 8 |
| RESISTOR | Dial in any four-band resistor's color code with this interactive decoder that calculates resistance, preferred E12 values, and tolerance in real time. | Program | CATS Library Tape 8 | |
| Return Of The Jedi - Death Star Battle | Cartridge | |||
| Rifle | A scrolling shooting gallery game with machine code effects, six escalating target rounds, UDG sprites, and a bubble-sort high-score table tracking the top five players. | Program | ||
| Rifle Range | Shoot scrolling UDG targets with a moving gun in this arcade-style gallery game featuring machine code routines, six target types, and a persistent high-score table. | Program | SINCUS Exchange Tape 103 - Potpourri | |
| Risk | A compact flood-risk calculator uses a classic probability formula to determine how likely a once-in-a-century event is to strike within any chosen time window. | Program | Timex Sinclair Public Domain Library Tape 2001 | |
| RLEPro | Decode and display run-length-encoded hi-res artwork loaded from tape, then automatically save the finished screen as a picture file. | John Ryan | Program | |
| RND | A generative noise machine that fires random values into 14 sound parameters across 1,000 loops, creating an ever-changing wall of electronic sound. | Program | ||
| Roberts Labs BBS | A fully functional modem-driven bulletin board system with machine code I/O routines, multi-message storage, sysop chat, and tape-based message persistence. | Kenneth Roberts | Program | |
| Robot | Save the Earth from the invading Robots. There are many generations of robot, each one is faster, more powerful and in greater number than the last. | Eric Boisvert | Program | Byte Power August 1986 |
| Robot Invasion | A Space Invaders-style shooter with machine code routines, custom UDG sprites, and escalating difficulty — all packed into a tight BASIC game loop. | Program | ISTUG Public Domain Library 8 | |
| ROCKETMAN | A two-part tape loader launches a machine code rocket game by protecting RAM, loading 8500 bytes, and jumping straight into the action via USR. | Karl Jeffrey | Program | |
| Rockets | A countdown of flashing borders and beeps precedes an ASCII rocket launch, then random stars scatter across the screen in celebration. | Program | ISTUG Public Domain Library 8 | |
| ROLL OVER | A subroutine that copies font bitmaps and cycles color attributes to make text appear to "roll" with animated, shifting colors across each character. | Program | ||
| ROM Check | A ROM diagnostic tool verifies memory integrity and floating-point accuracy using byte-sum checksums and deliberate arithmetic rounding-error accumulation tests. | Program | SINCUS Exchange Tape 102 - Utilities & Business | |
| RomeoT | A carnival weight-guessing game hides a remarkable self-listing routine that decodes its own tokenized BASIC and renders each keyword as hand-drawn letterforms on screen. | Program | ISTUG Public Domain Library 8 | |
| Rotate Character | This program reads any user-defined graphic character, transposes its 8×8 bit matrix, and POKEs the rotated result back into memory for instant display. | Program | ||
| Rotating Pyramid | A 36-frame rotating 3D pyramid with hidden-line removal, perspective projection, and pre-computed animation frames played back from a single large array. | James Jones | Program | CATS Library Tape 9 Timex Sinclair Public Domain Library Tape 2004 |
| RSLOAD | A joystick-driven text-stamping tool that lets you position, color, and print any string anywhere on screen — then save or load the result. | Program | ISTUG Public Domain Library 8 | |
| RubicCube | A fully interactive Rubik's Cube simulator with face rotation, scrambling, move recording, and tape save/load — complete with custom block graphics for the cubies. | Program | ISTUG Public Domain Library 8 | |
| rWP32 | Bob Orrfelt | ROM | ||
| Saddle Cosine | Watch a 3D saddle-shaped surface animate across four stored screen pages, driven by Z80 machine code block-copy routines and perspective projection math. | James Jones | Program | CATS Library Tape 9 |
| Saddle Cosine 1 | A morphing 3D saddle-cosine surface rendered with perspective projection, using Z80 LDIR machine code to page display-file snapshots in and out of RAM. | James Jones | Program | CATS Library Tape 9 |
| Santa | Guide Santa through five increasingly difficult stages — blizzard, rooftop drop, chimney lift, snowball dodge, and sleigh launch — in this fully configurable multi-stage arcade game. | William Tilley | Program | ISTUG Public Domain Library 8 |
| Santa-C | A self-contained animated Christmas card plays holiday music, scrolls a UDG-drawn sleigh across the sky, and flashes a greeting — all in one compact BASIC program. | Warren Fricke | Program | CATS Library Tape 11 |
| Santa's Christmas Nightmare | Guide Santa through five increasingly brutal stages — blizzard, rooftop drop, chimney lift, snowball gauntlet, and a nail-biting altitude sprint — in this multi-stage Christmas action game. | Program | ||
| Santa's Dilemma | Guide Santa with cursor keys to herd eight escaped reindeer into their pen before time runs out — with attribute-based collision detection and a BEEP carol. | Program | SINCUS Exchange Tape 103 - Potpourri | |
| Sat-Bahn | A full Keplerian orbit propagator tracks real satellites in real time, computing azimuth, elevation, Doppler shift, and sun/shadow status for over a dozen spacecraft. | Program | ||
| Satellite Orbits | A real-time satellite tracker that plots orbital ground tracks, computes azimuth and elevation for your location, and calculates Doppler-shifted beacon frequencies for over a dozen named satellites. | Program | ||
| Saturn Lander | Guide a spacecraft down through Saturn's rings and land safely on the rocky surface — this BASIC lander game packs machine code routines, UDG graphics, and pixel-perfect collision detection. | Program | ISTUG Public Domain Library 8 SINCUS Exchange Tape 101 - Entertainment Timex Sinclair Public Domain Library Tape 2004 | |
| Saucers | Guide a crosshair, fire at descending alien saucers, and prevent ten landings before the invaders build their city and doom mankind to become toothpicks. | Program | SINCUS Exchange Tape 101 - Entertainment | |
| Saucers | Pilot a crosshair cursor across a defended landscape and blast alien saucers before they land ten times and build a city on Earth. | Program | SINCUS Exchange Tape 101 - Entertainment | |
| Saver | Load any tape header and instantly get a ready-to-use SAVE command back — this utility decodes file type, name, length, and start address automatically. | Program | ISTUG Public Domain Library 8 | |
| Schematic | Place resistors, capacitors, diodes, and NPN/PNP transistors on a live schematic canvas — all rendered with PLOT and DRAW from coordinate DATA tables. | Program | ||
| Scrabble | A fully playable Scrabble implementation pits up to three human players against a computer opponent, with a color-coded bonus-square board and cumulative score tracking across multiple games. | John Leary | Program | ISTUG Public Domain Library 8 |
| Scramble | Type in any 3–7 letter word and this BASIC program systematically generates every possible permutation, with factorial counts and real-time progress on screen. | Frank Bouldin (W5GAA) | Program | Fort Worth TS2068 Club Library Tape |
| Screen Compactor | Compress screens and store more screens in memory. | Eric Boisvert | Program | Byte Power Fall 1988 |
| Screen Layout Examination | Enter any byte value and watch it fill every pixel and every colour cell on screen — a hands-on tool for understanding display memory layout. | Program | Fort Worth TS2068 Club Library Tape Timex Sinclair Public Domain Library Tape 2001 | |
| Screen-Calc | A fully featured BASIC spreadsheet with formula functions, conditional logic, column insert/delete, tape save/load, and hardcopy printing — all in one self-contained program. | Andrew Banta | Program | |
| Scroll | Two Z80 machine code routines deliver a smooth left-and-right pixel scroll across a full screen of text — no flicker, pure bit-shifting magic. | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 | |
| Scroll | A 98-byte Z80 machine code routine POKEd into high memory delivers smooth upward screen scrolling — and the REM block hints at adapting it for all four directions. | Program | ||
| Scrolls | Two machine code routines scroll the entire screen left and right at the byte level, plus a bonus demo cycling through all 255 hardware pixel-scroll positions. | Program | ||
| Scrolls | Eight BASIC scroll routines — up, down, left, right, each with and without wrap — all driven by clever single-string manipulation of a 704-character display buffer. | Tim Hartnell | Program | SINCUS Exchange Tape 102 - Utilities & Business |
| Scuba Diver | Collect as many pieces of the treasure as you can in a sunken ship… But be careful not to run out of air! | Kristian Boisvert | Program | Byte Power Fall 1987 |
| Sea Raider | Defend against an enemy ship crossing the screen — fire missiles before time runs out and rack up points in this BASIC shooting gallery game. | Program | ||
| SECONDS | Navigate a trap-filled maze against a ticking timer to find hidden treasure — but one wrong move with your bomb could blow up the prize! | Program | ||
| SEND VARS | A modem utility that hides and restores BASIC variables and machine code by embedding callable routines directly inside a REM statement for over-the-wire transfer. | David Hoshor | Program | CATS Library Tape 8 |
| Setype | This clever font utility installs 80 bytes of machine code to let any BASIC program switch between Regular, Bold, Modern, and Italic type styles with a single GOSUB call. | Ron Ruegg | Program | Timex Sinclair Public Domain Library Tape 2001 |
| Shaded Globe | Three lines of BASIC conjure a realistically shaded 3D globe using trigonometry, a hidden-surface test, and probabilistic lighting math. | Program | ||
| Shadow Of The Unicorn | Program | |||
| Sheep Dog Trials | Guide your sheepdog through four increasingly complex stages, herding sheep past ponds, fences, and obstacles — all driven by SCREEN$-based collision detection. | Program | SINCUS Exchange Tape 101 - Entertainment Timex Sinclair Public Domain Library Tape 2004 | |
| Ships Attack | Four color-coded bombs rain down at ever-increasing speed — dodge them all with just two keys and watch the difficulty suddenly double at 25 points. | Program | ISTUG Public Domain Library 8 | |
| Ships Attack | Dodge four color-coded falling bombs with your ship, and survive long enough to face the speed increase that kicks in at 25 points. | Program | ||
| Shooter | In 2986, you are launched into deep space on a equipped with the most powerful computer known on Earth, a TS2068. | Kristian Boisvert | Program | Byte Power August 1986 |
| Shooting Tiles | A clever pixel-scanning routine reads a text banner and "shoots" each lit pixel down the screen with sound effects, creating a unique animated title display. | Program | Timex Sinclair Public Domain Library Tape 2001 | |
| Short Term Memory | A memory-testing sequence game that challenges players to recall ever-longer strings of letters, numbers, or binary digits — and times how long they take. | Hal Renko, Sam Edwards | Program | |
| Showdown | A two-player gunfighter duel loads a hex-encoded machine code routine, verifies it with a checksum, and then lets both players battle it out with custom sprites. | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 | |
| Shrink | Play patient to an AI therapist that scans your typed responses for keywords, reverses your pronouns, and fires back eerily plausible therapeutic replies. | Program | ||
| Sidescroll | A pure-BASIC scrolling ticker that slides any long string across a single screen row, showcasing just how fast substring printing can be. | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 | |
| Sign Designer | A full sign-making studio with text layout, border styles, graphic tile editing, and multi-printer support — all driven by a substantial machine code engine loaded from tape. | Program | ||
| Simon Says | A color-and-sound memory challenge that grows its sequence one step at a time — can you repeat it back before your brain gives out? | Program | ||
| Simple Graph | A dual-mode graphing tool plots physics data on a grid with labeled axes, lets you capture results with a printer copy, then returns to a styled menu. | Program | ||
| Simple Roulette | Jay Simpson | Program | ||
| Simply Music | A three-voice polyphonic player performs Pachelbel's Canon in D, letting you adjust soprano, alto, and bass volumes live with an on-screen bar-graph display. | Stan Lemke | Program | |
| Simulated Underline Cursor | A reusable TS2068 screen-printing routine that animates each character with a flashing underscore cursor, with a two-screen demo and a pager subroutine for longer text strings. | Richard Bredhoff | Program | |
| SINCUS Exchange Tape 101 - Entertainment | Pure fun — land on the moon, herd sheep, hunt submarines, race cricketers, eat dots as Pac-Man, and dodge alien swarms across a nighttime skyline. SINCUS Tape 101 is a deep bench of TS 2068 arcade action, card games, and sports simulations. | Cassette | 3-D Maze 3D Driver 3D Tic Tac Toe Aliens Asteroids Biorhythms Brick-Yard Bill Chomper Concentration Cricket Demolition Earth Golf Hangcat King-Kong Manimation Math Messiah Mission Impossible Money Pail Moon Lander Poker Saturn Lander Saucers Saucers Sheep Dog Trials Slot Spacman Submarine Swarm Tennis Tic Tac Toe Work Simulation | |
| SINCUS Exchange Tape 102 - Utilities & Business | The workhorse tape — assemble Z80 code, manage databases, analyze statistics, cast I Ching hexagrams, balance your checkbook, and switch between four font styles. SINCUS Tape 102 turns the TS 2068 into a serious productivity machine. | Cassette | 3D Words 64 Column 64 Column BASIC AERCO Patch Anatomy Arcscratch Banner3 Calculator Certificate Checkbook Balancer DoodleJoy Dragon's Companion Font III Gradebook Header Investment Large Text Life Insurance Estimater Loan Compare Memscan Pie Chart Proportional Printing QRL Renumber ROM Check Scrolls Sound Pro Sprite Statistical Analysis Tape Analyser Tape Label The Personal Accountant Tips A-M Tips N-Z Toolkit Typist Unifile III Word Sorter ZX Spectrum Editor/Assembler | |
| SINCUS Exchange Tape 103 - Potpourri | A little of everything — play Battleship with adjustable AI, solve Klondike Solitaire with custom card graphics, guide Santa's reindeer into their pen, or track your stock portfolio on tape. The potpourri tape lives up to its name. | Cassette | Battleships Cash Flow file0 Halloween Humorisq Pairs Personal Net Worth Quizmaster Rifle Range Santa's Dilemma Sinewave Solitaire Squawtime Squirm Star Spangled Banner States And Capitals Taking Stock Tychk | |
| SINCUS file | A full club membership and finance manager prints dues receipts, tracks incomes and expenses, and calculates prorated dues based on the month a member joins. | Paul Hill | Program | |
| Sine Wave | Watch a sine wave build point by point across the screen, with live readouts of the x and y values updating at each step. | Ted Pozyski | Program | |
| Sinewave | A compact math demo plots a full sine wave with centered axes, using floating-point parametric scaling to fill the screen with a smooth trigonometric curve. | Program | SINCUS Exchange Tape 103 - Potpourri | |
| Sketchpad | A freehand pixel drawing tool with separate draw, erase, and reposition modes — all controlled from just four movement keys and two function keys. | Program | ||
| Sky Diver | How long will you wait to open your parachute? Can you land on a moving target? | Kristian Boisvert | Program | Byte Power Fall 1987 |
| Skyplot | A randomised constellation quiz draws 28 star fields using UDG characters, then challenges you to name each pattern and its brightest star. | Eric Burgess, Paul Holmgren | Program | Miscellaneous Programs |
| Slant | Font for the TS 2068. | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 | |
| Slot | A full-featured one-armed bandit with animated reels, jokers, holds, a gamble round, and a double-up bonus — all driven by computed GO TO dispatch. | Program | Miscellaneous Programs SINCUS Exchange Tape 101 - Entertainment | |
| Slow Message | A pixel-by-pixel double-size text scroller renders any message you type using machine code for smooth scrolling — enter your message and watch it loop forever. | D. J. Currie | Program | ISTUG Public Domain Library 5 |
| Small Screen Painter | Eric Boisvert | Program | Byte Power September 1986 | |
| Smokey | A DATA-driven melody player for "On Top of Old Smokey" with adjustable tempo, lyric display, and clever ON ERR end-of-data detection. | Mark Miller | Program | |
| Snake | A Snake game that encodes the entire body as a string of position characters and uses a REM-embedded machine code routine to read screen cells for collision detection. | Program | ||
| Snaker | Guide a growing snake around a dot-filled playfield, racing the clock while dodging your own body in this attribute-based collision game with machine code sound. | Program | ||
| SNAKES | Dodge falling snake-head obstacles by sliding left and right — collision detection reads directly from the screen in this fast-paced single-variable reflex game. | Program | ||
| SNICKERS | A one-versus-computer checkers game with a multi-tier AI that prioritizes safe captures, piece protection, back-row bonuses, and random fallback moves. | Program | ||
| Snow 2 | Entry for the Vintage Computing Christmas Challenge 2025. | Peyton Bratton | Program | |
| Softclock | A pure-BASIC software clock that derives elapsed time by polling the system frame counter, with manual time-set and leading-zero display formatting. | Program | ||
| Solar/Lunar Eclipses | Predict every solar and lunar eclipse across four millennia using rigorous astronomical math, complete with eclipse type, magnitude, and GMT contact times. | Imre Auersbacher | Program | TS-2068 Computer Programs |
| Solid Banner | Print giant text banners on paper by reading character bitmaps straight from ROM — at three selectable sizes up to four times normal height. | Christopher Raynak | Program | |
| Solitaire | A fully featured peg solitaire game with UDG graphics, cursor-key support, move validation, boundary clamping, and musical fanfares for winning and losing. | Program | ||
| Solitaire | Peg Solitaire puzzle on a 7×9 coordinate grid — jump pieces to clear the board, leaving one piece in the center. | Kristian Boisvert | Program | Byte Power February 1988 |
| Solitaire | A fully playable Klondike Solitaire implementation with custom card graphics, a shuffled 52-card deck, three-card waste pile dealing, and win/loss tracking across sessions. | Program | SINCUS Exchange Tape 103 - Potpourri | |
| Sort Demo | Four classic sorting algorithms — Bubble, Selection, Shell, and Quicksort — head-to-head in one program, letting you compare their performance on randomly generated arrays. | William Tracy, D. J. Currie | Program | ISTUG Public Domain Library 5 |
| Sorting Algorythms | Three classic sorting algorithms — Bubble, Insertion, and Shell Sort — packed as machine code inside REM statements, ready to sort fixed-length byte arrays via USR calls. | Alvin Albrecht | Program | |
| Sound | A single SOUND command fires up all three tone channels of the AY chip at once, producing a chord that plays until you press a key. | Kristian Boisvert | Program | Byte Power August 1986 |
| Sound Effects | A six-option sound demo lets you trigger bomb, gunshot, and explosion effects, play "America the Beautiful," or perform on a fully interactive on-screen piano keyboard. | Program | CATS Library Tape 8 Timex Sinclair Public Domain Library Tape 2003 | |
| Sound Experimenter | A fully interactive sound chip controller lets you sculpt three-channel tones, noise, envelope shapes, and more in real time with a graphical parameter display. | Everett Pence | Program | |
| Sound Experimentor | Interactively explore all 14 registers of a programmable sound chip with a full-screen editor, live waveform display, and real-time audio output. | Mike Rhees | Program | |
| Sound Pro | An interactive AY sound chip programmer lets you set every register, build multi-step sequences, and play back timed soundscapes — all from a menu-driven interface. | Program | SINCUS Exchange Tape 102 - Utilities & Business | |
| Sound Scanner | Plug in audio, pick a graph style, and watch live waveforms appear on screen — this BASIC program samples your tape input using a custom machine code routine. | Program | CATS Library Tape 3 | |
| Soundesign 2068 | Explore all 14 registers of a programmable sound chip interactively, audition nine pre-recorded effects, and watch animated BASIC code generate sci-fi sounds in real time. | James Edwards | Program | |
| Sounds | A ready-to-borrow library of sound effects — telephone rings, sirens, galloping horses, explosions, and more — designed to drop straight into your own programs. | George Chambers | Program | |
| Space Adventures Coloring Book | Coloring book software with pictures of space ships, astronauts, and alien creatures. | Program | ||
| Space Game | Pilot your block-graphic spaceship, dodge descending aliens, and rack up points in this action shooter with real-time sound effects and collision detection. | Charlie Day | Program | |
| Space Raiders | Cartridge | |||
| Space War | A two-player space duel with proximity-fused missiles, joystick control, and clever state-packing inside a string array — all in BASIC. | Mark Fisher | Program | CATS Library Tape 1 |
| Spacman | A Pac-Man clone stores its entire maze in a string array and uses custom UDG sprites to animate a chomping character hunted by two independently moving ghosts. | Program | SINCUS Exchange Tape 101 - Entertainment Timex Sinclair Public Domain Library Tape 2004 | |
| Spanish Builder I | A two-way vocabulary quiz lets you drill word pairs in either direction, tracking which words you've already answered to avoid repeats within a round. | Program | CATS Library Tape 6 | |
| Spanish Builder II | A two-way vocabulary quiz lets you drill either direction through a word list, tracking each answer to avoid repeating questions within a round. | Program | CATS Library Tape 6 | |
| Spanish Tutor | An interactive Spanish tutor automatically conjugates any regular verb you enter and teaches suffixes, opposites, and question words with scrolling example sentences. | Marty Curley | Program | CATS Library Tape 2 CATS Library Tape 6 Long Island Sinclair Timex (LIST) User Group Library Tape #2 |
| Special Sound | A tight three-voice AY chip sweep that drives harmonically spaced pitches across all tone channels before silencing itself and looping forever. | Eric Boisvert | Program | Byte Power September 1986 |
| Specterm-64 v4.0 | Program | |||
| SpectraTERM 1.0 | Program | |||
| SpectraTerm 1.30 | Specific for the Byte Back MD -68 modem, this terminal program features 300 baud rate, a 32K+ buffer (allows storage of data in REM statements only), auto answer. | Program | ||
| Spectrum Disassembler | A full Z80 disassembler in BASIC decodes all opcode prefixes, resolves IX/IY indexing, and can follow jumps or relocate addresses — all from within memory. | David Hawkins | Program | |
| Spectrum Draw | A machine code art package from Your Computer gets a TS2068 conversion—with BASIC-driven parametric circles, screen save/load, and text overlay routines. | Floyd Chrysler | Program | CATS Library Tape 2 |
| Spectrum Emulator Code | Spectrum ROM loaded at 30000 (7530h), for use with Timex/Sinclair 2068-based EPROM programmer. | Program | ||
| Spectrum Golf | Play a full 18-hole round with club selection, handicap-adjusted distances, wind effects, and terrain hazards — all rendered in character graphics with custom UDGs. | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 | |
| Spectrum LOGO | A complete LOGO turtle-graphics interpreter in BASIC, supporting named procedure definitions, REPEAT loops, pen color, coordinate commands, and an interactive line editor. | Program | ||
| Speech Synthesizer | A complete speech synthesizer toolkit featuring a dramatic counting demo, free-text sentence input, and a multi-library word compiler that merges speech data blocks in high memory. | Program | ||
| Spell That Word | A 30-question spelling quiz that shuffles correct and misspelled options randomly — but two of its three difficulty levels were never finished. | George Chambers | Program | CATS Library Tape 10 |
| Spellbug | A pixel-magnifying spelling game that renders scrambled letters as giant mosaics and lets you hunt them down with a joystick or type your answer at the keyboard. | Program | CATS Library Tape 10 | |
| Spelling I | A two-level spelling quiz that tracks your wrong answers across sessions and lets you drill exactly the words you've been missing — with easy and difficult modes. | Program | ||
| Spelling II | A two-level spelling bee quiz that tracks your test history, lets you practice missed words, and challenges you to both spot and correct misspellings. | Program | ||
| Sphere 3D | A parametric curve plotter stores every screen coordinate as packed characters, then redraws the Lissajous-style figure instantly from its own memory buffer. | Real Gagnon | Program | |
| Spider | Guide a spider through three increasingly tricky stages — plughole, bath, and bathroom — using pixel-perfect collision detection and procedurally generated obstacles. | Program | ||
| Spider & Fly | Guide your spider up and down the screen's edge to catch flies crawling across six rows before the timer runs out — a joystick-driven arcade challenge with custom UDG sprites. | Program | ||
| Spin The Bottle | A party game simulation for up to 20 players that spins a virtual bottle, pairs opposite-sex players for forfeits, and removes eliminated players by compacting its own arrays. | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 | |
| Spinning Wheel | A continuously animated spinning wheel built from concentric circles and rotating spokes, driven by a Z80 machine code double-buffering routine for smooth animation. | Charles Eric Goyette | Program | |
| Spiral | A pure-BASIC geometric spiral built from trigonometric rotation and scaling draws an intricate hexagonal pattern — ported from Apple II code published in Creative Computing, February 1984. | Joe Jenkins, Ted Knyszek | Program | Timex Sinclair Public Domain Library Tape 2001 |
| Spooky | Font for the TS 2068. | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 | |
| Spreadsheet II | Faster, improved version of ‘JUST ANOTHER SPREADSHEET!’ with more file space. | Kristian Boisvert | Program | Byte Power Fall 1988 |
| Sprite | A self-installing Z80 sprite engine with checksum protection loads into high RAM, controllable with a single USR call or a POKE to disable it. | Program | SINCUS Exchange Tape 102 - Utilities & Business | |
| Sprite 2 | A BASIC loader installs a self-verifying machine code sprite engine that hooks the interrupt vector, animating graphics automatically while humorous fake copyright strings scroll by. | Wes Brzozowski | Program | CATS Library Tape 9 Timex Sinclair Public Domain Library Tape 2004 |
| Sprite Demo | A machine code sprite engine gets loaded, patched with address data at runtime, and repeatedly invoked to animate graphics in a tight BASIC loop. | Alvin Albrecht | Program | |
| Sprites 2068 | A complete sprite animation toolkit with a built-in UDG editor, machine code movement engine, and self-shortening save routine — all packed into one BASIC program. | Ron Ruegg, C. Vernon Tidwell | Program | |
| Square | Enter any number and watch a 4×4 magic square appear whose rows, columns, and diagonals all add up to exactly what you chose. | Cecil Johnson (W5SRQ) | Program | |
| Square Wave Graph | A sine wave clipped into a square wave is graphed live on-screen, complete with labelled voltage axis and real-time readouts updating with every plotted point. | Program | Timex Sinclair Public Domain Library Tape 2001 | |
| Squash 1 | Guide your paddle with keys 5 and 8 to keep a bouncing ball in play in this minimalist one-player squash game written entirely in BASIC. | Program | ||
| Squash 2 | A two-player squash game with hardware port-scanned paddles, turn-based hitting rules, and a race to 21 points — all in pure BASIC. | Program | ||
| Squawtime | A five-item recipe menu packed with Texas humor, complete with UDG graphics, trig-drawn arcs, and a "Pecan Diet Loaf" that requires tweezers to eat. | Joan Kealy | Program | SINCUS Exchange Tape 103 - Potpourri |
| Squirm | A two-player worm-racing game where joystick-guided snakes compete to eat numbered food tokens and outlast each other on a bordered arena. | Program | SINCUS Exchange Tape 103 - Potpourri | |
| SRS2000 Speech Recognition System | A speech recognition system that captures voiceprints, matches spoken words against stored samples, and displays a real-time frequency spectrum—all driven by machine code called from BASIC. | Brad Bennett | Program | |
| STACK | A fractal tree-drawer that simulates recursion using an explicit software stack and clever integer-ratio rotation — no trig functions required. | Dick Scoville | Program | |
| Stamp Inventory | A seven-function stamp collection manager that stores up to 150 stamps with names and quantities, featuring search, add, delete with array compaction, and quantity adjustment. | Stephen Justham | Program | |
| STAR | Enter any number of points and watch a fully connected star polygon materialize line by line, with a real-time pause feature letting you freeze the drawing mid-progress. | Program | ||
| Star Blast | Blast scrolling star fields with a custom-drawn cannon in this joystick-controlled space shooter that gets faster and more crowded with every wave. | Program | Timex Sinclair Public Domain Library Tape 2003 | |
| Star Spangled Banner | A patriotic flag display paired with a fully playable national anthem uses clever UDG stars, block-graphic stripes, and an error-trap trick to signal end-of-song. | Oleg D. Jefimenko | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 SINCUS Exchange Tape 103 - Potpourri |
| Star Trek | A fully playable Star Trek game with custom sprite graphics, synthesized sound effects, procedural galaxy generation, and a mid-game save feature awaits your command. | Don Barnard, James N. Brown, Mike James | Program | CATS Library Tape 1 |
| Star Wars - The Arcade Game | Cartridge | |||
| Starfighter Trainer | Pilot your ship with a joystick, fire animated laser beams at a wandering alien, and manage dwindling energy before it hits zero in this action shooter. | Rick Conard | Program | |
| Starfire | Command the destroyer Starfire across a 10×10 galaxy, hunting Xtardan enemies through combat, docking, time portals, and asteroid fields in this full-featured space strategy game. | Program | ||
| Starfleet 2068 | Command a starship against waves of enemy vessels in this space combat game featuring dual navigation and tactical screens, machine code fast-copy routines, and rank-based difficulty scaling. | Stan Lemke | Program | |
| States & Capitals | A 50-question geography quiz on U.S. states and capitals that draws map location markers and tracks first-try, second-try, and incorrect answers separately. | Cartridge | ||
| States & Capitals | A 50-question geography quiz on U.S. states and capitals that draws map location markers and tracks first-try, second-try, and incorrect answers separately. | Program | ||
| States And Capitals | A two-mode U.S. states-and-capitals quiz that tracks which questions have been asked, gives letter hints on wrong answers, and plays a reward melody for correct ones. | Program | SINCUS Exchange Tape 103 - Potpourri | |
| Statistical Analysis | A comprehensive two-variable statistics package — means, SD, t-test, regression, correlation, and bar charts — packed into a single BASIC program with a built-in instruction manual. | Program | SINCUS Exchange Tape 102 - Utilities & Business | |
| Statistical Analysis | A comprehensive paired-data statistics suite covering means, standard deviation, regression, correlation, t-test, and graphical output — all in BASIC with a full instruction set. | Program | ||
| Stock Exchange | Start with $10,000 and trade five stocks over weekly rounds, watching for dividends and splits in this BASIC market simulation. | Paul Holmgren | Program | Miscellaneous Programs |
| STOP IT | A sliding reaction-timing game where you must press a key at exactly the right moment to stop a moving character under the correct column — with three difficulty levels. | Program | ||
| Streams and Channels | Peek inside the streams and channels tables live in RAM — this diagnostic tool decodes every address, routine pointer, and device specifier byte on screen. | Program | CATS Library Tape 8 Timex Sinclair Public Domain Library Tape 2003 | |
| Stuntman | Hold a key to build speed, release at the right moment, and watch your stuntman attempt to clear a row of double-decker buses in this arcade jump game. | David Ritchie | Program | |
| SUB | Pilot a submarine, fire torpedoes at enemy ships, and dodge their depth charges in this action game featuring custom-drawn UDG sprites and randomized enemy speeds. | Program | ||
| Submarine | Hunt an invisible enemy submarine with depth charges, sonar pings, and evasive maneuvers — all while the sub fires back at you. | Program | SINCUS Exchange Tape 101 - Entertainment | |
| Super Marbles | A BASIC loader for a machine code marble game, with built-in screen save/load utilities and a clever self-locating bootstrap sequence. | Eric Boisvert, Kristian Boisvert, Michael Kemper | Program | Byte Power February 1987 |
| Super Trek | A port of the 1970s mainframe Super Star Trek, adding Romulan warships, UDG sprites for all objects, and AY chip sound effects to the classic eight-command gameplay. | Program | ||
| Super-Cipher 2068 V2.2 | A password-driven cipher program encodes and decodes secret messages using modular arithmetic, with tape storage, printer support, and a self-destruct termination sequence. | Imre Auersbacher | Program | TS-2068 Computer Programs |
| Super-Cipher 2068 V3.1 | A password-driven cipher tool encodes and decodes secret messages using modular arithmetic, with tape save/load, printer output, and a multi-level sub-menu system. | Imre Auersbacher | Program | TS-2068 Computer Programs |
| SuperCalc | Navigate a graphical on-screen calculator keypad with a joystick to enter and evaluate arithmetic expressions, complete with memory recall and square root support. | Mark Biery | Program | |
| SuperCheck | Program | |||
| Superfile | A personal phone directory with category and substring search, printer output, and hidden menu commands buried inside a DATA-driven contact database. | Program | ||
| Surface Plot | A wireframe 3D surface plotter renders a ripple function using perspective projection math, with hidden-line suppression and precomputed trig for smooth results. | James Jones | Program | Timex Sinclair Public Domain Library Tape 2004 |
| Survive | Guide your character across a dot-filled screen to safety while homing crushers zero in on your every move — can you survive? | Robert Midura | Program | |
| Swarm | Guide a rocket launcher crosshair across a nighttime skyline and shoot down an advancing swarm of bees before they wipe out the city's population. | Program | SINCUS Exchange Tape 101 - Entertainment Timex Sinclair Public Domain Library Tape 2004 | |
| Swordfight | Cartridge | |||
| T V | A hand-crafted television set screen display combining UDG characters, arc-based DRAW commands, and CIRCLE calls to render a detailed TV graphic with text labels. | Rick Johnson | Program | |
| T-PI PADS | Design T-pad and pi-pad resistive attenuators instantly — enter your impedances and desired dB loss, and get all three resistor values for both topologies with schematic diagrams. | Ken Corwin | Program | |
| Tag | Can you catch a randomly wandering target using just four keys before it slips away again in this quick block-graphics chase game? | Program | CATS Library Tape 1 Long Island Sinclair Timex (LIST) User Group Library Tape #2 | |
| Taking Stock | A BASIC stock portfolio tracker that saves company names and share counts to tape, then calculates current holdings value from newspaper price quotes with printer support. | Program | SINCUS Exchange Tape 103 - Potpourri | |
| Talk Clock | A homemade talking alarm clock that pokes speech parameters into machine code to vocalize a hilariously scolding wake-up message at 6 AM. | Program | ||
| Tank | Enter an elevation angle and watch your shell arc across the battlefield — but can you calculate the range before your target escapes? | Program | Timex Sinclair Public Domain Library Tape 2001 | |
| Tape Analyser | A tape analyzer utility reads cassette headers one by one and displays each file's name, type, length, and load address using a tiny embedded machine code loader. | William Pierson | Program | SINCUS Exchange Tape 102 - Utilities & Business |
| Tape Corrector | A two-recorder tape utility that loads relocatable machine code, patches internal addresses at runtime, and reconditions deteriorating cassette signals on the fly. | Kristian Boisvert | Program | Byte Power Fall 1988 |
| Tape Examiner | Decode what's on any cassette tape by reading its header metadata — filename, file type, length, and start address — without loading the full file. | Algis Gedris | Program | |
| Tape Label | Design and print a two-sided cassette tape index card, complete with bordered columns, program titles, and index numbers for up to 15 entries per side. | James DuPuy | Program | SINCUS Exchange Tape 102 - Utilities & Business Timex Sinclair Public Domain Library Tape 2004 |
| Tape Lister - Centronics | This tape cataloging utility reads header blocks directly from cassette, decodes all four file types, and stores up to 128 entries for printing or saving. | Program | ||
| Tape to Tape Backup | A clever 20-byte machine code routine turns the computer into a live tape signal relay, letting you duplicate cassettes with just two recorders. | Larry Kenny | Program | Timex Sinclair Public Domain Library Tape 2001 |
| tape2tape | A clever 26-byte machine code routine turns the computer into a signal relay between two tape decks, cleaning up copies on the fly. | Cameron Hayne | Program | |
| Tasman Interface Software | BASIC program to configure your TASMAN printer interface. | Program | ||
| Taswide | Utility that gives output to the screen at 64 characters per line as well as the normal 32 characters per line. | Program | ||
| Tasword II | Program | |||
| Tasword to Pixel Print | Utility to convert Tasword files for use with Pixel Print. | Program | ||
| Tax 2068 | A complete two-part 1983 U.S. federal income tax calculator covering income, deductions, bracket lookup, credits, and final refund computation. | Program | ||
| Tax Planner | A dual-year tax planning tool compares your 1982 and 1983 US federal income tax side by side, walking through income, deductions, exemptions, and bracket lookups. | Herman Geschwind | Program | |
| TAX84 | A complete Canadian T1 income tax return calculator that walks you through every line of federal and Ontario tax, then computes your refund or balance due. | Algis Gedris, Bob Mitchell | Program | |
| Tech-Draw 2.0 | High resolution black and white drawing utility inspired by MacPaint for the Apple Macintosh computer. For use with the Zebra Graphics Interface and Graphics Tablet. | Program | ||
| Tech-Draw 2.1 | High resolution black and white drawing utility inspired by MacPaint for the Apple Macintosh computer. For use with the Zebra Graphics Interface and Graphics Tablet. | Program | ||
| Tech-Draw Junior v1.0 | Tech-Draw was inspired by Apple’s MacPaint for the Macintosh computer. Like MacPaint, Tech-Draw works in black and white, so that what you see on your screen is what you get on your printer. | Program | ||
| TechDraw Jr 1.3 | A technical drawing application's loader that auto-detects storage devices, configures six dot-matrix printers via machine code routines, and launches the main drawing engine. | Program | ||
| TED | A looping screen-transition demo drives seven machine code effects — panning, zooming, fading, and flipping — through tidy DEF FN wrappers calling into a 900-byte routine. | Program | ||
| Telephone Directory | A full-featured telephone directory application with interactive entry, alphabetical bubble sort, substring search, and hardcopy printing — all in BASIC. | Tim Hartnell | Program | CATS Library Tape 8 |
| Tennis | A two-player tennis game with perspective title art, direct port keyboard reading, and UDG paddle graphics that change shape based on forehand or backhand stance. | Phillip Sproston | Program | SINCUS Exchange Tape 101 - Entertainment Timex Sinclair Public Domain Library Tape 2004 |
| Tennis | A perspective tennis court simulation uses sine-wave arcs and user-defined graphics to animate a continuous rally between two auto-playing characters. | Program | ||
| TEST | Build your own randomized quiz: enter questions and answers, get hints, earn points, and save the finished test to tape for later play. | Program | ||
| Text Editor 2000 2.2 | A surprisingly capable full-screen text editor that handles insert, delete, search-and-replace, justification, centering, and tape-based save/load all within a single BASIC program. | Christopher Nystrom, Ron Ruegg, Mannie Quintero | Program | |
| Text Printer | A dual-mode text printing utility that rotates output sideways for the TS2040 thermal printer and pages through magazine text stored in raw memory. | Eric Boisvert, Kristian Boisvert | Program | Byte Power February 1987 |
| Text1 | A full word processor with tape load/save, screen editing, search-and-replace, and machine code block-move routines crammed into a single BASIC program. | Program | ||
| Textwriter 2000 | A surprisingly capable word processor with word wrap, block editing, tab stops, and both single- and double-spaced printer output packed into one BASIC listing. | Robert Fingerle | Program | |
| TEXTYPE | A full-screen text editor with search-and-replace, justified output, printer support, custom typefaces, and 21 user-defined graphics — all in pure BASIC. | Christopher Nystrom, Ron Ruegg, Mannie Quintero | Program | CATS Library Tape 6 |
| The Chess Player | Program | |||
| The Crown | Delve into a multi-level dungeon to recover The Crown, fighting monsters and gathering treasure across rooms drawn dynamically from coordinate data. | Brian Walker | Program | |
| The Day You Were Born | A BASIC program uses Zeller's congruence and a computed GO TO trick across 1,300+ line numbers to find your birthday and star sign instantly. | Kristian Boisvert | Program | Byte Power September 1986 |
| The Desk | Kristian Boisvert | Program | Byte Power December 1986 - January 1987 | |
| The End | Short animation of Eric and Kristian Boisvert waving. | Eric Boisvert, Kristian Boisvert | Program | Byte Power August 1986 |
| The Old Shell Game | A fast-talking dealer named Tim Sinclair challenges you to track a pea under shuffling shells — can you beat the house with $10 on the line? | Jack Armstrong | Program | |
| The Personal Accountant | A three-mode personal finance tool calculates loan amortizations, future values, and incremental growth—printing detailed monthly schedules to screen or printer. | Al Laity | Program | SINCUS Exchange Tape 102 - Utilities & Business |
| The Qualifier | Enter your down payment, monthly budget, interest rate, and loan term to instantly calculate the maximum home price you can afford. | Kristian Boisvert | Program | Byte Power Spring 1987 |
| The Rose | A fully data-driven BASIC program plays "The Rose" note by note, synchronizing split syllable lyrics with three-voice harmony chords from the AY sound chip. | Program | Timex Sinclair Public Domain Library Tape 2003 | |
| Tic Tac Toe | A two-player Tic-Tac-Toe game with a pixel-drawn board, graphical X and O markers, running score tracking, and a final session winner summary. | John Colonna | Program | CATS Library Tape 1 SINCUS Exchange Tape 101 - Entertainment Timex Sinclair Public Domain Library Tape 2004 |
| Tick Tack Toe | A two-player number-key tic-tac-toe game with named players, score tracking across sessions, and an animated splash screen intro. | Butch Weinberg | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 |
| TIMACHINE | Floating-point BASIC compiler with the speed of an integer compiler. | Cameron Hayne | Program | |
| TIME | Enter a known time in any city and instantly find the corresponding local time anywhere else in the world, with a user-expandable city database stored as machine code. | George Chambers | Program | |
| Time Inquiry | Look up the current time in any world city by name, powered by a machine code search routine and an expandable packed database you can extend yourself. | George Chambers | Program | |
| Time Series Analysis: Exponential Smoothing | A time-series forecasting tool that automatically finds the best exponential smoothing constant by comparing eleven alpha values against your observed data. | Program | Timex Sinclair Public Domain Library Tape 2001 | |
| Time Teacher I | An animated clock-face tutor teaches children to read the hour, half hour, quarter, and minutes — complete with UDG graphics, trig-positioned hands, and cheerful fanfares. | Charles L. Damon | Program | |
| Time-Gate | Arcade-style shoot-em-up. | Program | ||
| Timer 1 | A digital clock with animated rainbow title screen uses machine code scaled-text rendering and frame-counter manipulation to track time and automatically roll over dates. | Algis Gedris | Program | |
| Timex Sinclair 2068 Demo Tape | A four-part keyboard tutorial, a text-command turtle-graphics interpreter, and a full 40-account monthly budget manager — all in one BASIC collection. | Cassette | ||
| Timex Sinclair Logo | A data-driven logo renderer that fires 260 PLOT/DRAW commands from compact DATA statements, then optionally sends the result to a printer with a linefeed POKE. | Program | ||
| Timex Sinclair Public Domain Library Tape 2001 | The foundation of Tony Willing's numbered library series — play Breakout, write documents in a 64-column word processor, morph a triangle into a square with flicker-free animation, or run a complete fig-FORTH system. Fifty programs covering every category. | Tony Willing | Cassette | "BOLD" Character Subroutine 21 Auto Answer BigStuff Bounce Breakout Calendar Cassette Directory Catalog Characters Checkbook Clip Art Clock Double Thick Characters Factorise FadeOut figForth v1.0 GraphicDemo Header Hydrology Hydrology 2 Impossible Triangle KeyScan Linear Optimization By Simplex Method Machine Code Monitor Memscan Modem Moving Averages Net Present Value NPolygons OverDemo OverDemo2 PSG Register Renumber Risk Screen Layout Examination Setype Shooting Tiles Spiral Square Wave Graph Tank Tape to Tape Backup Time Series Analysis: Exponential Smoothing Tiny Turtle Triangle To Square Typewriter Typewriter 64 Xmas Card |
| Timex Sinclair Public Domain Library Tape 2003 | Where music meets machine code — hear pop ballads and Latin medleys rendered in three-voice AY chip harmony, manage records with Quicksort-powered databases, copy tapes, or blast through scrolling star fields. | Tony Willing | Cassette | 2068 Disassembler and Monitor 3-D Attr Table Battle Beethoven Binary Bio-Graph Caloriburn Cassette Label Chordizer Copycat Endless Love Espanola Evergreen FILE 1 Merge 1 Mortgage Multi Tape MULTIFILE+ Nightfall Sound Effects Star Blast Streams and Channels The Rose Varslist W5GAA Clock |
| Timex Sinclair Public Domain Library Tape 2004 | Arcade-heavy and visually striking — dodge gorillas in King-Kong, herd sheep past obstacles, catch falling eggs in Kitchen Chaos, and watch a rotating 3D pyramid with hidden-line removal. Tony Willing's fourth volume brings the action. | Tony Willing | Cassette | 2068 Graphics and Trig 3D Driver 3D Tic Tac Toe Aliens Asteroids Bars Biorhythms Buster-Bill's Obsession Earth King-Kong Kitchen Chaos Manimation Math Messiah Mission Impossible Money Pail Moving Waves New York by Night Opus Poker Rotating Pyramid Saturn Lander Sheep Dog Trials Spacman Sprite 2 Surface Plot Swarm Tape Label Tennis Tic Tac Toe |
| Tiny Turtle | Draw spirals, polygons, and abstract patterns with this turtle-graphics engine driven entirely by angle, step length, and an optional growth increment. | Tim Hartnell | Program | Timex Sinclair Public Domain Library Tape 2001 |
| Tips A-M | A sprawling alphabetical tip database covering everything from BEEP tricks to disk drives, with live demos and computed GOTO navigation built right in. | Joan Kealy | Program | SINCUS Exchange Tape 102 - Utilities & Business |
| Tips N-Z | A two-volume interactive tip database covering computing topics N through Z, packed with POKE addresses, joystick code, machine code hints, and community contacts. | Joan Kealy | Program | SINCUS Exchange Tape 102 - Utilities & Business |
| Title Shoot | A clever pixel-scaling routine reads a signature from the screen's bottom edge and redraws it enlarged with a two-tone colour effect and audio feedback. | Algis Gedris | Program | CATS Library Tape 11 |
| Titlemaker | This subroutine renders any entered title in double-size text by reading pixel data and scaling each dot to a 2×2 block on screen. | D. J. Currie | Program | |
| Tomahawk | Pilot a AH-64 Apache gunship. | Program | ||
| Tomorrow Lies in Ambush! | A 600-line word processor with bold printer output, tape save/load, and on-screen editing — all packed into one self-contained BASIC program with a machine code font driver. | Emmett Jenkins | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 |
| Tomorrow Lies In Ambush! | A menu-driven word processor stores up to 600 lines of text with tape save/load, printer output, and a line-by-line editor — all in BASIC. | Emmett Jenkins | Program | CATS Library Tape 3 |
| Tone Dialer | Dial phone numbers by generating DTMF tones through your computer's sound hardware, with memory storage for up to 20 numbers and a redial buffer. | Program | ||
| Tone Phone 2068 | Type in any phone number and hear each digit dialed as a pair of synthesized tones — a software DTMF dialer built entirely in BASIC. | J. Kevin Paulsen | Program | |
| Toolkit | A multi-page documentation and menu system drives a four-function BASIC toolkit, with machine code routines for renumbering, REM removal, variable listing, and numeric compaction. | Jack Dohany | Program | |
| Toolkit | A ten-option programmer's toolkit dispatches machine code utilities for renumbering, search-and-replace, and variable analysis straight from a BASIC menu. | Program | SINCUS Exchange Tape 102 - Utilities & Business | |
| TOOLKIT | A four-function BASIC toolkit offers machine code-powered renumbering, REM stripping, variable listing, and number compaction — all squeezed into a single two-part tape package. | Jack Dohany | Program | CATS Library Tape 3 |
| ToolKit1 | A handy four-function BASIC toolkit offering line renumbering, REM stripping, line deletion, and variable listing to streamline program development. | George Chambers | Program | |
| Toolkit2 | A menu-driven BASIC developer's companion offering renumbering, REM stripping, variable inspection, search-and-replace, and case-swapping tools in one utility. | Algis Gedris | Program | |
| Towering Inferno | Guide a rescue boat across the screen to catch people leaping from a burning building in this action game with UDG sprites and a detailed block-graphic backdrop. | Program | ISTUG Public Domain Library 6 | |
| Towers Of Hanoi | Kristian Boisvert | Program | Byte Power November 1986 | |
| Trace | A 700-byte machine-code trace utility that hooks into BASIC execution and displays each line number as it runs, with separate USR entry points to toggle it on and off. | Eric Boisvert | Program | Byte Power November 1986 |
| TRACER | A BASIC flow tracer that injects Z80 machine code to walk your program's GOTO, GOSUB, and IF…THEN branches, displaying the full execution path line by line. | Program | CATS Library Tape 8 | |
| Tracer | A merge-in BASIC flow tracer uses embedded Z80 machine code to walk your program's control flow, printing every GOTO, GOSUB, and RETURN it encounters. | Program | CATS Library Tape 8 | |
| Tracer | A self-contained instruction manual and tape-saver for a machine code utility that overlays live line and statement numbers onto your running BASIC programs. | Chris Stone | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 |
| Trader Trilogy | A three-part space trading saga loads machine code, preserves cargo and credits across tape segments, and challenges you with alien quizzes, gravity maneuvers, and a deadly surface maze. | Program | ||
| Traffic | Choose traffic or a train, pick a direction, and watch custom-drawn vehicles scroll smoothly across the screen using clever string-rotation animation. | Stan Livingston | Program | |
| Train | Guide trains across a scrolling track, using collision detection and sound effects, before the next locomotive arrives — can you beat your score? | Program | CATS Library Tape 1 | |
| TRAINS | An animated train rolls left or right across your screen using 18 custom characters, with user-selectable speed and direction — built entirely in BASIC. | Stan Livingston | Program | |
| Transmission Line Impedance | A transmission line impedance calculator that sweeps electrical distance in degrees, computing magnitude and phase angle with full rectangular-to-polar conversion. | Ronald Ginardi | Program | |
| Travels with Trashman | Trashman wants to travel the globe, but doesn't quite have all of the cash he needs. His plan is to earn enough money, by cleaning up trash at each city he visits, to eventually complete the round-trip. | Program | ||
| Traxx | A grid-filling action game where you trace square edges in sequence across a 24-square field while avoiding up to 9 pursuing aliens, with 9 speed settings and a 2-player mode. | Program | ||
| Treasure Hunt | Explore a procedurally generated cave network, collect treasures, and battle demons in this six-difficulty-level adventure with joystick and keyboard support. | Butch Weinberg, Paul Sherwood | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 |
| Tree | A Christmas card program with a UDG-built decorated tree, Jingle Bells melody with three-voice AY chord accompaniment, and a scrolling seasonal greeting. | Patrick Spera | Program | Miscellaneous Programs |
| Tri-Voice (Beep) | A clever BASIC scheduler interleaves three BEEP voices at high speed to fake polyphony, reading note-and-duration byte pairs straight from a memory-resident music block. | Kristian Boisvert | Program | Byte Power Spring 1987 |
| Triangle To Square | Watch a triangle smoothly morph into a square across 20 interpolated frames, driven by a machine code dual-screen buffer that eliminates flicker entirely. | John Bell | Program | Timex Sinclair Public Domain Library Tape 2001 |
| Try these | Seven self-contained demos in one listing — bouncing symmetrical line art, a polar coordinate plotter, a software clock, and more — each a standalone experiment. | Program | ||
| TS Stock | Enter your stock option position details and this BASIC program instantly calculates exercised and unexercised ROI, annualized returns, break-even price, and last trading day. | Program | ||
| TS-2068 Computer Programs | Predict eclipses across four millennia, track planetary positions through five centuries, calculate loan amortization schedules, or encode secret messages with modular arithmetic — Imre Auersbacher's collection brings scientific precision and practical utility to the TS 2068. | Imre Auersbacher | Cassette | Bingo-2068 Biorhythm Computer (1700-2200) Depreciation Schedule Game of Sticks (NIM) Loan Amortization 2068 Moon Phase Calculator Perpetual Calendar 2068 Planet Ephemeris 2068 Point Of Sale Cash Register Solar/Lunar Eclipses Super-Cipher 2068 V2.2 Super-Cipher 2068 V3.1 |
| TSTK P2.6 | A 26-tool BASIC programming toolkit that installs as a machine code extension with IM2 interrupts, offering line editing, tracing, UDG design, and program protection features. | Bob Mitchell | Program | |
| Tune Box | Kristian Boisvert | Program | Byte Power September 1986 | |
| TUNE BOX volume 2 | Plays 5 different tunes. | Kristian Boisvert | Program | Byte Power October 1986 |
| Tunnel Run | Navigate your spacecraft through four increasingly dangerous sections — missile tunnel, asteroid field, winding passage, and landing pad — in this multi-stage survival game. | Program | ||
| TV Check | Five classic TV alignment test patterns—color bars, crosshatch, dot grid, and line sets—help you calibrate color and convergence on any display. | Algis Gedris | Program | |
| Twenty One | A fully featured Blackjack game with graphical card rendering, insurance bets, doubling down, and a surprise "Game Over" screen drawn entirely with vector graphics. | Program | ||
| Twiddler | This screen-attribute utility lets you instantly swap any on-screen color for another without knowing its coordinates — powered by relocatable machine code hidden inside a REM statement. | Program | ||
| Tychk | A memory-walking diagnostic tool that reports every BASIC line's number, byte length, and alternating-weight checksum — all printed to screen and printer simultaneously. | Program | SINCUS Exchange Tape 103 - Potpourri | |
| Tycoon | A ten-level oil-drilling game that switches UDG sets via direct POKEs, detects its host machine at runtime, and lets mines blow up your pipes underground. | Kristian Boisvert | Program | Byte Power Spring 1987 |
| Type 2068 | Word processor with machine-code page storage, three selectable character sets (two custom fonts embedded in the code block), word wrap, graphics mode, and tape-based document save/load. | Mike Rhees | Program | |
| Typewriter | A complete BASIC word processor with word-wrap, tab stops, insert/delete, and cassette save/load — all packed into a single string-array document buffer. | Jack Dohany | Program | Timex Sinclair Public Domain Library Tape 2001 |
| Typewriter 64 | A public-domain, tape-saveable word processor with word-wrap, tab stops, 64-column display support, and a two-level command system crammed into pure BASIC. | Jack Dohany | Program | Timex Sinclair Public Domain Library Tape 2001 |
| Typist | A typing tutor program that draws a full keyboard graphic using custom characters, then scores your accuracy keystroke-by-keystroke across a sequence of practice phrases. | Program | SINCUS Exchange Tape 102 - Utilities & Business | |
| UDG | Design your own custom graphic characters pixel by pixel, then save the raw binary data straight to tape with this interactive UDG editor. | Program | ||
| UDG Custom Graphics | A three-mode pixel editor lets you draw single UDG characters, 16×16 sprites, and massive 23×24 sprites, then POKEs them directly into UDG RAM. | George White | Program | CATS Library Tape 2 |
| UDG Demo | A machine-code-powered demo explores all three UDG character rendering modes, passing parameters via POKEs before each call to embedded code hiding in a REM statement. | Program | CATS Library Tape 11 | |
| Unifile III | A surprisingly capable flat-file database packed into BASIC, using a 28,000-character buffer, binary search insertion, and live record compaction on delete. | Program | CATS Library Tape 8 SINCUS Exchange Tape 102 - Utilities & Business | |
| Universe | Simulate gravitational two-body orbits with full control over mass, velocity, launch angle, and the gravitational constant — watch orbital paths traced in real time. | W. R. Mazefield | Program | |
| UNSCREEN | A handy utility that tucks an entire screen image inside a BASIC REM line — and pulls it back out again — using two machine code entry points. | Edwin Schoen | Program | |
| Upload 2000 | Convert your existing Timex/Sinclair 1000 or ZX81 programs to the Timex/Sinclair 2068. | David Ornstein | Program | |
| US Map | Trace the full outline of the contiguous US using nothing but chained relative DRAW commands read from dozens of DATA statements. | Program | ||
| Utility Bill Audit | A complete household utility auditor that handles three-tier electric, gas, water, and shared phone bills — all driven by editable DATA statements. | Program | Fort Worth TS2068 Club Library Tape | |
| Variable A | Peek inside BASIC's memory and watch every variable—numbers, strings, arrays, and FOR loops—decoded live from the raw five-byte floating-point format. | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 | |
| Variable Area | A memory explorer that walks the variable area and decodes every variable type — including floating-point math and FOR-NEXT loop control blocks — into plain English. | Program | ||
| Variable Trace | Pinpoint every line and statement where a named variable appears by walking the tokenized BASIC program area in memory — a genuine debugging utility. | Program | ||
| Varslist | A 173-byte machine code utility reveals every BASIC variable currently in memory — just call it with RANDOMIZE USR to inspect your program's state. | Program | CATS Library Tape 8 Long Island Sinclair Timex (LIST) User Group Library Tape #2 Timex Sinclair Public Domain Library Tape 2003 | |
| Vertical Write | Type any uppercase text and watch it scroll down the screen as large, colorful line-drawn letters — each character encoded as a series of PLOT and DRAW commands. | Program | ||
| VHSBold | Manage and print a bold-formatted, alphabetically sorted home video collection with cassette-based data storage and smart incremental insertion — no full re-sort needed for new purchases. | Program | ||
| Video Graph | A pixel-art UDG editor lets you draw on a 16×16 grid, assign regions to user-defined characters, and instantly POKE the results into memory. | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 | |
| Video Tape File | A video tape catalog manager stores up to 100 titles with searchable subject and tape-number fields, complete with a Shell sort and tape-based data persistence. | Program | CATS Library Tape 3 Long Island Sinclair Timex (LIST) User Group Library Tape #2 | |
| Vidio Artist | A full-featured freehand drawing suite with joystick control, circles, arcs, magnified text, UDG support, and tape save/load — all driven by a two-letter command menu. | James DuPuy | Program | |
| Vigenère Cipher | Encode and decode secret messages using the Vigenère polyalphabetic cipher, with a repeating keyword and character-level arithmetic to scramble your text. | T.S. Thomas | Program | |
| Vocabulary | A four-category vocabulary quiz with etymology-rich answer explanations challenges players to identify word meanings across family, emotion, business, and film topics. | Paul Allain | Program | |
| VoiceChess | Program | |||
| VSYS JBBS | A fully functional dial-up bulletin board system in BASIC, with machine code serial I/O, Microdrive message storage, and a hidden SYSOP editor mode. | Joe Newman | Program | |
| VU-3D | A sophisticated design and modeling program. VU-3D lets you create any object on the screen which you can then modify, expand, reduce, shade, color , zoom in or out, or rotate to view the object from other 3D-like perspectives. | Program | ||
| VU-Calc | Spread-sheet approach to fiscal analysis, engineering calculations, statistical analysis and more. Formula approach locates and calculates complex tables of numbers and letters. | Cartridge | ||
| VU-Calc | Spread-sheet approach to fiscal analysis, engineering calculations, statistical analysis and more. Formula approach locates and calculates complex tables of numbers and letters. | Program | ||
| VU-CALC for Printer | A BASIC loader that bolts full-size printer support onto the VU-CALC spreadsheet by POKEing a Z80 machine code routine and routing output through configurable column and row entry points. | Rudy A. Hilsmann | Program | |
| VU-Calc with 80 column printer support | Article and patches to add 80 column printing ability to VU-Calc. | Pat C. P. Morrissey | Article | |
| VU-File | Use electronic filing to store your lists. You create your own file and record layout, store data and retrieve information when needed. Computer search facility makes it easy to find a single record from a universeof many records. | Cartridge | ||
| VU-File | Use electronic filing to store your lists. You create your own file and record layout, store data and retrieve information when needed. Computer search facility makes it easy to find a single record from a universeof many records. | Program | ||
| W5GAA Clock | A precision UTC digital clock that encodes the current time directly in BASIC loop counters, using block-graphic digits and carefully tuned BEEP durations to keep accurate time. | Frank Bouldin (W5GAA) | Program | Timex Sinclair Public Domain Library Tape 2003 |
| Wagoner's Walk | A four-wagon race betting game where random movement, time bonuses, and five taunting replay messages keep the excitement going until your money runs out. | Program | CATS Library Tape 6 | |
| War in the East | Command German or Soviet forces across a 30-turn Eastern Front campaign where terrain, winter rules, and a Moscow control counter determine your fate. | Program | ||
| Water Balloon Masters | You have heard of shoot’em up games? Well, how about a splash ’em down game? Yes, a major breakthrough in computer technology has brought us this weird game! | Eric Boisvert | Program | Byte Power February 1988 |
| Weather Analysis | A weather station logbook and barometric forecaster that stores 190 daily records and predicts conditions — including flashing severe storm warnings with audio alerts. | Program | ||
| Weather Analyst | A rule-based weather station logger and barometric forecaster stores up to 190 daily records and issues dramatic storm warnings with flashing alerts. | Program | ||
| Weekly Taping Schedule | Enter your weekly recording schedule day by day and print a neatly formatted timetable complete with channel numbers and program names. | Program | CATS Library Tape 3 Long Island Sinclair Timex (LIST) User Group Library Tape #2 | |
| Weird Balls (Astro II) | Shoot everything that moves! Don’t let them pass you by or you’ll lose points. | Eric Boisvert | Program | Byte Power February 1988 |
| Willie's BBS | A full dial-up bulletin board system with user registration, private messaging, sysop chat, and machine code serial I/O loaded from a companion tape. | Willie Jones | Program | |
| Wind Chimes | Enter a target musical frequency, pick your material and shape, and this program calculates the exact length to cut and where to drill your wind chime. | Carter Scholz | Program | |
| Window Print | A dual-mode windowing library demo lets BASIC programs scroll, color-change, and simultaneously manage up to eight independent screen windows with no machine code calls from the user. | John Bell | Program | |
| Word 1.6 | A ten-page word processor with character insert/delete, caps lock toggle, multi-copy printing, and tape save/load — all packed into one BASIC listing. | James DuPuy | Program | |
| WORD 5+ | A ten-page text editor with cursor movement, character and line insertion/deletion, tape save/load, and multi-copy printer output — all in BASIC. | James DuPuy | Program | |
| Word Cross | A word-placement puzzle game that challenges you to cross themed words on an 18×18 grid, with six built-in lists and support for your own custom vocabulary. | Program | ||
| Word Images | This random sentence generator lets you define custom word-order templates or choose from seven presets, then displays the results in a striking vertical typographic layout. | Program | CATS Library Tape 10 Miscellaneous Programs | |
| Word Play I | Two word games in one package—Hangman with a fully drawn gallows and Anagrams with live letter shuffling—plus support for ten built-in word categories and custom user word lists. | Program | ||
| Word Play II | Three word games in one package—Anagrams, Hangman, and Jumble—challenge two to six players with letter-shuffling, gallows graphics, and time-scored vocabulary rounds. | Program | ||
| Word Pro | A full-featured BASIC word processor supporting 300-line documents, text justification, tape save/load, and character-by-character keyboard editing with cursor control. | Peter Hoffman | Program | Long Island Sinclair Timex (LIST) User Group Library Tape #7 |
| Word Sorter | A Shell-Metzner sort engine for up to n user-supplied words, backed by an external machine code bold-print routine loaded from tape. | Program | SINCUS Exchange Tape 102 - Utilities & Business | |
| WORDSQUARE | Build and solve your own word search puzzles with this BASIC program that places words in eight directions across a 20×20 letter grid. | Tim Hartnell, James DuPuy | Program | CATS Library Tape 6 |
| Work Simulation | Run a factory, manage workers, survive union strikes and flash floods, and try to turn a profit in this randomized business management simulation. | Program | SINCUS Exchange Tape 101 - Entertainment | |
| WUMPUS | Bob Swoger (K9WVY) | Program | ||
| Xadom | A fast-moving bird's-eye maze game with fixed single-screen rooms, collectible weapons, avoidable traps and aliens, and an elaborate sci-fi story setup. | Program | ||
| Xmas Card | A flashing Christmas card draws a PLOT/DRAW tree, scatters UDG baubles, then loops through three carol melodies with randomised ornament colours each time. | Chuck Dawson | Program | Timex Sinclair Public Domain Library Tape 2001 |
| YAGI | Design a custom Yagi antenna for any frequency: enter the center frequency and element count, and get precise dimensions, gain, beamwidth, and construction advice instantly. | Bob Howard (WA6DLI) | Program | |
| Z-Row Gravity | Kristian Boisvert | Program | Byte Power Spring 1987 | |
| Z-Term 64 v1.1 | Terminal program for use with OS-64. | Program | ||
| Z80 Disassembler | A fully functional Z80 disassembler that decodes live memory into assembly mnemonics, handling all instruction prefixes, indexed addressing, and bit operations. | Program | ||
| Zeal Disassembler | A full-featured Z80 disassembler with a menu-driven interface, cross-reference listing, printer support, and configurable relocation displacement — all backed by machine code routines. | John C. Kilday | Program | |
| Zebra Graphics | Graphics for use with Zebra's Greeting Card Designer, Banner Designer and Sign Designer programs. | Program | ||
| Zebra OS-64 | ROM image; supports the Timex/Sinclair’s 64-column mode. Fully compatible with 32 column commands and functions. | Jeff Street | ROM | |
| ZebraPainter 1.4 | Paint program that fully utilizes TS2068 Extended Color Mode. Works with Zebra graphic tablet. | Program | ||
| Zeus Disassembler | Program | |||
| Zombies | Navigate your raft through a zombie-infested swamp using arrow keys, avoiding the undead pursuer before it catches — and eats — you. | Hal Renko, Sam Edwards | Program | |
| ZPrint-80 1.2 | A fully interactive configuration utility patches a Centronics printer driver in machine code, letting you choose your printer model, interface, column width, and linefeed behavior before saving a custom binary to tape. | Program | ||
| ZPRINT-80 Printer Support v1.3 | A printer driver configurator patches machine code in memory to tailor dot-matrix printer support for seven printer models and four interface types. | Program | ||
| ZTalker 1.2 Text-to-Speech Software | A full phoneme-sequence editor drives dedicated speech synthesizer hardware, letting you compose, navigate, edit, and speak aloud any sequence of up to 100 phoneme codes. | Program | ||
| ZX Spectrum Editor/Assembler | A two-pass Z80 assembler with a built-in line editor, label resolution, and a DATA-driven instruction encoder — all in pure BASIC with a machine-code insert helper. | Program | SINCUS Exchange Tape 102 - Utilities & Business | |
| ZXzine Issue 10 ZIP file | Programs and code samples from ZXzine issue 10. | Tim Swenson | Program | |
| ZXzine Issue 11 ZIP file | Programs and code samples from ZXzine issue 11. | Tim Swenson | Program | |
| ZXzine Issue 12 ZIP file | Programs and code samples from ZXzine issue 12. | Tim Swenson | Program | |
| ZXzine Issue 6 ZIP file | Programs and code samples from ZXzine issue 6. | Tim Swenson | Program | |
| ZXzine Issue 7 ZIP file | Programs and code samples from ZXzine issue 7. | Tim Swenson | Program | |
| ZXzine Issue 8 ZIP file | Programs and code samples from ZXzine issue 8. | Tim Swenson | Program | |
| ZXzine Issue 9 ZIP file | Programs and code samples from ZXzine issue 9. | Tim Swenson | Program |
The Authoritative Website for Timex/Sinclair Computers