DOOM for the TI-84 CE - Cemetech | Forum (2025)

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A link to the GitHub repo: https://github.com/andymwat/TI-84-CE-DooM

Although it's not the most original idea in the world, a little while ago I decided to write DOOM in C for the TI-84. I already had some experience writing a raycaster in C#, so I ported it to C. I took a break from working on it about a month ago, but I thought I'd share it here.
Current features include:

▪ Wall, sprite, and weapon rendering
▪ Basic movement and collision
▪ A top-down map in the upper right corner
▪ A bunch of things that can be changed (FOV, wall height, resolution)

It's in need of a LOT of optimization (the gameplay gif has been sped up, otherwise its a slideshow), but so far I'm pretty proud of it. I plan on adding a bunch more features when I get around to it.

andymwat wrote:

I'm just a novice coder (even that's a bold statement) that wants Doom on their calculator (ti-84 plus CE). I don't know if it's just me, but the link doesn't work/Doom doesn't come up as a downloadable file when clicked. Does anyone have the files/a working link?

Also, I completely overestimated the age of this forum, so fingers crossed that someone ever responds to me.

We want... a shrubbery!

"You can say literally anything and claim it's a quote from The Art of War." -Sun Tzu Update your MyCalcs coward.

We want... a shrubbery!

"My world is Black & White. But if I blink fast enough, I see it in Grayscale."

Just noticed this engine was very similar to my game PLR, Maybe the source code can help me with layering .

Quote:

If only andy was still working on this...

It is just compile the code from github.

Alvajoy123 wrote:

Are you making a doom port tho?

Do you guys think it would be fair if I complete this DOOM port for the CE and submit it for download in the CEMETECH archives? I know this program code will not be written by me 100%. Should I make one from scratch, or am I able to start with the source code from the shared file linked in the author's post above? Let me know what you guys think!

Just in case you don't want to scroll to the top of the forum, here is the link.

"My world is Black & White. But if I blink fast enough, I see it in Grayscale."

It would be good to get permission from the author but the license doesn't explicitly require it: https://github.com/andymwat/TI-84-CE-DooM/blob/master/LICENSE

If you want to try a similar program that is available already then there's Cellar 3D, a 3D raycaster maze program by PatrickD: https://www.cemetech.net/downloads/files/1588/x1588 . It even has textures but it's not a first-person shooter.

Someone is also trying to port the real DOOM to the CE but I dunno how much progress was made and how much work is left to be done, considering how big of a project it is. If that person or anyone else can pull this off then this will be amazing, even if it's just a port of the Super Nintendo or Sega 32X versions.

DJ Omnimaga wrote:

If that person or anyone else can pull this off then this will be amazing, even if it's just a port of the Super Nintendo or Sega 32X versions.

I think it's fascinating how vastly different these two versions are from an application of principles perspective. The 32X version had Carmack helping out the best he could, and trying to make the Doom engine he worked so hard on work on the 32X, whereas the SNES version was basically clean-room reverse engineered ( for lack of better terms ) by Randy Linden who has helpfully put it up on git! But it's a different beast entirely.

Which does make me wonder if porting that version would almost be more feasible as it was meant to run cleanly on the SuperFX chip, and not on whatever Sega was cooking up in Redwood.

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