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  1. You are a very lazy person. It is snowing outside. Since you don't want to shovel, you are trying to catch every snowflake in a garbage can. Made for Cemetech Contest 18, keyword "snow".

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  2. This will sketch any angle, in radians or degrees. Read the included readme for further directions/information.

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  3. This small and nifty math program takes two polynomials of any size in the form (A*X^B*Y^C...)(A*X^B*Y^C...). It then expands these two polynomials and combines like terms. Save time, reduce error. Note: This program requires the newest version of the TI-84 Plus CE OS, because of the toString command used in displaying results.

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  4. This fully developed map contains two levels of building: on the surface of the water, and in underwater colonies. Explore the submarine lava rivers as you create your builds, and ponder the flashes of lightning, rumbling thunder, and ominous clouds above the surface of the water. Just be sure to bring a raincoat so you don't get soaked by the rain.

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  5. Double Dragon is a side scrolling arcade classic, now for your ti83+/84+. Winner of the TI Freakware Programming Contest, it features ten levels, varying enemies, greyscale graphics, eight directional movement, and speedy game play. The TI Mafia has your girlfriend, and you're left passed out on the street. You have nothing to lose. The cards are on the table, it's up to you to save the day.

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  6. A simple program to calculate interval and continuous compound interest.

    Some tweaking allows this to work with other calculators with TI-BASIC support.

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  7. Mastermind for the TI-84 Plus C Silver Edition. Try to solve the four color sequence in the least amount of moves, using deduction through clues provided per round. Single and two player mode. Requires Doors CSE 8.0 or higher, from

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  8. This is the original version of pong. It is very very simple, yet very very fun. If you like games, then you won't regret downloading this. Try out the new Acceleration Mode!

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  9. This is a TI-Basic program that when you type in the variables for certain math equations, it gives you the answer to the math problem. It includes several Algebra Equations including slope, Pythagorean Theorem, distance, midpoint, and quadratic. It also includes geometry equations too.
    Edit: I added more options to the quadratic. Conversion planned. You can also find the nth number of the Fibonacci sequence. I hope you enjoy...

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  10. Do you take Calculus? Have you ever wanted to perform a quick antiderivation? Now you can! simply plug in the antiderivative of cx^n dx, and this nifty program will find the original equation in the form zx^p+C. Excellent graphics and interface; Doors CS v4.0 optimized.

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  11. Introduction:

    Tag is a 2D puzzle platformer based off of the famous game Tag: The Power of Paint for the TI-83 series of calculators. It features 24 original levels with a fully-functional physics-based environment, along with creative and challenging gameplay. This game was written for the Omnimaga Axe parser contest.


    This game will only run at full speed on a TI-83 SE, TI-84, or a TI-84 SE calculator. It will run at reduced speeds on older calculators, i.e. the TI-83 and the TI-BE. Playing at reduced speed is not recommended, however, as it greatly impacts playability.

    This game requires 17551 bytes of RAM, as well as a shell that supports Ion. It is highly recommended that you store this file in archive and use a shell such as NoShell to open it.


    LEFT/RIGHT: Move
    UP: Jump
    ENTER: Pick up/drop boxes
    keys around XTθN: Shoot paint/paint remover
    +: Change paint type


    For walkthroughs, development behind-the-scenes, and more, check out the official project site at

    Post Mortem:

    Runer112 - Crushed by a closing door - massive optimization help
    BuilderBoy - Launched into a spike pit - physics/logic help
    SirCmpwn - Deleted after the 23rd revision - sprite editor creator
    DJ_O - Forced to restart - Amazing forum master, brilliant guy
    thepenguin77 - Used speed gel and launched into a spike - random Q&A
    Omnimaga community - Exterminated via neurotoxin- support and help

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  12. === Want an answer to your question? Eight Ball is here to help! ===

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  13. This programs calculates mass in grams of atomic structures.

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  14. The program eqnlib offers 47 equations for HP Prime’s Solver App. Just run the eqlib program, select the category that you are interested in, and select the equation within that category and you are off and running!

    The equation selected will be loaded into the system variable E1. The program will show you what each variable represents in the solver. Keep this screen up as long as you like. When done, press [Enter], and you will be taken to the Numeric View of the Solve App. To see the equation, press the soft (Defn) key.

    Categories include:
    * Geometry (areas, volumes, surface areas)
    * Finance (monthly loans, sales tax, break-even)
    * Temperature Conversion (Fahrenheit to and from Celsius)
    * Physics: Problems of Motion (linear distance, circular motion, pendulums, terminal & escape velocity)
    * Sound (speed of sound, Doppler effect, loudness)
    * Optics (Lens and Snell equations, spherical refraction)
    * Electronics (2 resistors series and parallel, thermal noise, Ohm's Law)
    * Astronomy (parallax, luminosity, Kepler's 3rd Law, time dilation)
    * Great Circle Calculations
    * Angle of Incidence Calculations
    * Gases (Ideal and Boyle's Gas Laws, heat capacity, air density, isothermal expansion)
    * Fluids (depth pressure, fluid flow, Bernoulli's Equation)

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  15. In Adaptive Parkour you must adapt your character to beat each challenge! Each level is designed with a new character design in mind. You may customize run speed, jump height, and player size. Each level is possible, and your progress saves! No need for a "README", because all the information you'll need to play is in game! Though, just incase you can't follow simple directions the calculator gives you, you'll need the clibs to play this game (

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  16. This technical report details the CALCnet 2.2 networking protocol for graphing calculators. It begins with an overview of the motivations and inspirations for CALCnet, then reviews the existing alternatives for two-calculator linking, namely the TI-OS, BELL by Tim "Timendus" Franssen, and TachyonLink by Michael Vincent, and n-calc linking, namely CLAP by Mr. Franssen. It goes on to introduce the electrical systems in the calculator for linking, then proceeds to an in-depth section explaining the bit-level, byte-level, and frame-level protocols for one-to-one and broadcast frames. Although the average CALCnet 2.2 user or even programmer does not need to know any of that, it might help in case a coder wants to write CALCnet 2.2 drivers for another platform (Arduino? libticables?). Next is the meat of the manual for end programmers, how to send and receive data via CALCnet 2.2. I include a full experimental results and benchmarking section, detailing the maximum speeds of CALCnet, the overhead incurred by the protocol, effects of frame size on burst throughput, an effectiveness of collision detection and delivery guarantees. It concludes with information on logos and branding, a survey of possible future work, and a summary of CALCnet2.2's strengths and features.

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  17. BOSshell, coming to a CE near you!
    This program aims to provide a simple GUI and system for interfacing with files and file viewers/editors. It works with the standard Asm header, as well as its own filetyping system.
    Now with better UI, programs in the file system, improved stability, type/icon/description display for Asm programs, and file detection on first start!
    New: Add safer archive routine, fix some file names not displaying, fix [del] key not deleting files, update file info GUI, remove redundant and unused code.

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  18. This is a classic memory made using PT_’s awesome ICE programming language.
    2 versions of the program are included. They are identical except for the sprites that are included within the program. One has the default sprite pack and the other has sprites that are the github identicons of various cemetech members (see
    Use the arrow keys to move the cursor around and use either [2nd] or [enter] to select a card and flip it over. Next, you can either press [2nd] or [enter] on the same card to deselect it, or move the cursor to another card and select that as well. Selecting 2 matching cards erases them from the board, and erasing all the pairs means that you win! Pressing [clear] at any time quits the game.

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  19. The classic gem-matching game, Bejeweled! Match groups of 3 or more gems to earn points. Match multiple groups of gems for big score multipliers! Multiple background pictures included.

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  20. This program will solve for the missing angles/sides of any triangle!
    It will also solve for the area and perimeter, and then draw a picture of the triangle.
    Features two color themes!

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  21. This is the files for WORLD 1, WORLD 2 and WORLD 3 of Super Marm World

    Here are the planned worlds to be released:
    •Wooden Plateau
    •Wet Shores
    •Wispy Clouds
    •Frozen Tundra (or The Land of Snow Return 9_9 )
    •Green Land
    •Lava Lakes

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  22. In this game, you have to escape a buoy with the resources at your disposal. Although it is somewhat short, it does test your critical thinking skills in a precarious situation. This is my first ever "escape game", so the code I came up with is what I thought would work best (Don't Judge :P). There probably is a better way of doing it, but you gotta learn, right? This project was made for Cemetech Contest 20: Transit Time in the water category.

    Escape, and Enjoy!


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  23. This game is designed to work across ALL TI-83/84 calculators. Yes, finally a program that works with both monochrome and color calculators! In this game YOU make your own craft to fly through checkpoints! Using intuitive controls, you can create amazing crafts! This new version includes a revamped save and load system which allows you to save 30 custom-named ships! Save files are also compatible across all calculators. It also includes optimizations to the build system which makes it 3 times faster than what the screenshots show. This program won the 2017 December Project of the Month!

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  24. Highlighting scheme for SuperH assembly for the Prizm, for notepad++. Supports all registers (normal and special), instructions, instruction suffixes, and GNU Assembler directives. Code in AT&T syntax, in style!

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  25. This program sets up an empty prizm project for you, creating all the files needed by pcgsdk and Visual Studio 2010.

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  26. A demo of a rotating square (technically 2 for front and back due to backface culling) with a texture on it.

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  27. This is a Level pack for MateoConLechuga's Oriam and was made using his Oriam level editor. This is my first time so it may not be much but keep an eye out
    for DeeperYouGo2! Read the readme for more info about the game.

    (I am in no way taking credit for Oriam or the Oriam level editor. this is just a level pack)

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  28. You are a monkey that has to try and collect bananas without being captures by the hunters.

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  29. This is a simple program that I made when I got bored of trying to port Bloxorz from LuaFX to LuaZM. It moves a TARDIS Blue ball around the screen. Press [EXIT] to return to the LuaZM Prompt. Enjoy...

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  30. Ever lost a program due to a RAM reset? A careless accidental deletion? Archive Undelete can revive your lost program(s), provided it has been archived at least once since the last Garbage Collect.

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  31. Don't Touch The White Tiles is a simple game, but it can be very hard to master. Countless of apps and other iterations of this simple piano-game have been made, and I felt like it was my time to contribute to this utter madness. The game involves several modes for you to play, with varying difficulty and perhaps some rage-inducing moments. Play this game with your friends to see who can get the highest Hi-Score, and, of course, enjoy!

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  32. This is the completely recoded version of a game I made early in my programming career. The goal is to naviagate through an asteroid belt without getting hit. Make your way through four increasingly difficult levels to beat the game!

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  33. Distributions calculation for Graph 25+Pro and FX-7400GII:

    These are programs to calculate probability, cumulative probability, inverse cumulative probability of:

    - Binomial distribution
    - Geometric distribution
    - Hypergeometric distribution
    - Normal distribution
    - Poisson distribution

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  34. Soon after the release of Cemetech City, I'm releasing Cemetech City 2, a heavily modded version of the map that contains a save, ThirdCity. It's texturally quite similar to Cemetech City, but there are empty spaces, particle emitters, and more that work with the save. The save file itself may well be the most extensive build ever created in Blockland: over 400KB, and spanning from below ground to 4.5 scale kilometers above ground, several kilometers in every direction laterally, it contains several cities, multiple towns, and three aboveground bases and jumper-assisted elevators. Go download it now, mess with it, and continue the build!

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  35. In this game you use the two left and right arrow keys to move the green box. Try to navigate all the way to the top without getting squashed. NOTES: You can only move up one block at a time. The higher you are the more points you get. This game is also on!

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  36. This is a port of the popular arcade game Stacker, for the CE! More information in the README file :)

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  37. This package contains both of my train vehicles to date, the original TBM Train and the subsequent TBM Diesel. Both allow multiple passengers (8 for the train, 3 for the diesel) and full manuverability. Both are mounted on highly realistic LEGO 9V train wheels and modelled from actual LEGO parts or sets. Check it out, and make easy tracks out of hull pieces until TBM tracks are completed.

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  38. Well, here is a nice little math program for your TI-83+/84+ that will handle much of the math needed. It should be sufficent for the first semester of Algebra 1.

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  39. Doors CS 7.2 is the ultimate shell for TI-83+/SE and TI-84+/SE graphing calculators. This SDK will help you design BASIC and ASM programs for use under Doors CS. Besides an exhaustive, 124-page summary of all the features and routines that Doors CS 7 offers to BASIC and ASM programmers, this SDK contains a full toolchain to compile and build z80 ASM source code into .8xp files, all the necessary tools and include files, and additional programs to simplify writing headers for BASIC programs. If you are interested in developing for Doors CS or even learning about what it offers to programmers, this SDK is a must-have.

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  40. This is a simple math question answering game.
    Has questions of varying difficulty.
    Has a high score feature.

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  41. This is my CC20: Transit Time air submission. I spent a very long time making this (over 120 hours) so I really hope you enjoy it. I created a YouTube video demonstrating the features (linked in README.txt), as well as an in-game introduction. The objective of the game is to gather as much wealth as possible (by buying planes and access to airports) while keeping your customers happy, all over 25 short days. Includes a high scores table, so try and beat your friends! Enjoy!

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  42. The most secure password program for color calculators on the planet! Paired with OnBlock, you can set a password up to 26 keys long and lock your calculator! Have Fun!

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  43. In this game, you must fly around the screen capturing grey squares, all while under a time crunch! The movement is simple and intuitive to use, yet refreshingly different and difficult to truly master. Multiple control schemes (arrow keys and number pad) are readily available in-game, to accommodate your preferred method of playing. Featuring multiple modes of difficulty and highscore tables for each, hours of fun are to be had! Note: This is a COMPLETELY DIFFERENT program than the original Adventures of JETMAN, so check that one out, too!

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  44. Converts any file to an application variable. Max file size 64k

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  45. It is the year 2060, and nuclear power is becoming cheaper than ever. So cheap that you've decided to get that basement reactor approved and up and running. Did I forget to mention that these reactors are easily upgradable and run hotter than ever? Also, there's no radioactive water that the reactor spits out -- it's all in the coolant.
    **Screenshots haven't been updated; there are only a few additions, and minor interface changes. It still looks pretty much the same.

    NOTE: Save files from V1.1.0 WILL NOT WORK!! There have been too many changes!
    Save Files from 1.4.0. also will not work!! More updates have been added in!

    Added reactor health and associated mechanics (like meltdowns)
    Updated the Upgrades Menu
    Save File versions
    Auto Control, it's an upgrade that can be purchased and configured
    see readme for changelog

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