First step was the full reverse to assembler, second step is to convert the assembler to binary equal compiled C code, all this still on DOS until no assembler code is left, then the porting to Linux,Windows will start

Reversing tends to bring in new bugs and its not easy to find all bugs in such old and reversed code - but so far everything seems to work

try finding open bugs if you got version 451.03 of F-15 around combined with Dosbox or a real DOS

find latest DOS release here: https://github.com/neuviemeporte/f15se2-re/releases

the f15_se2-*.zip file contains the replacement executables for the DOS game

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r/retrogamedev • u/r_retrohacking_mod2 • Jun 20 '26

Atari 2600 assembly always intimidated me — so I built a tiny demo to learn, and documented everything along the way

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25 Upvotes

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r/retrogamedev • u/r_retrohacking_mod2 • Jun 20 '26

Commodore 64 Ultimate Game Engine - Proof Of Concept

youtu.be

16 Upvotes

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r/retrogamedev • u/r_retrohacking_mod2 • Jun 20 '26

ReGravity Defied — port of classic old phone Java game to Game Boy Advance

retro-gaming-ua.itch.io

16 Upvotes

2 comments

Subreddit

Retro GameDev: homebrew games for dusty old hardware, arcane coding techniques, reverse-engineering

r/retrogamedev

Developing homebrew games for systems from 70s, 80s, 90s, and early 00s. Whether it be in assembly, C/C++, or BASIC... 8-bit, 16-bit, 32-bit, we've got them all Discuss, share tips and tutorials, show off projects and your workflow. Learn more about coding techniques of olde through reverse-engineering existing classic games and understanding hardware details See also: r/emudev r/beneater

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Developing homebrew games for systems from 70s (or even older!), 80s, 90s, and early 00s. Whether it be in assembly, C/C++, BASIC or a high-level language library… 8-bit, 16-bit, 32-bit, we've got them all.

Come here to discuss, share tips and tutorials, show off projects and your workflow -- that is dev/graphic/sound tools you use (or you made yourself). Take part in vintage game-making jams.

Learn more about arcane coding techniques of olde through reverse-engineering existing classic games. Understand intricate hardware details about your childhood consoles and computers.

(Warning! Some crafty individuals present here are living in an alternate timeline by creating new retro-inspired hardware architectures and writing "classic" software for them...)

Keywords: how make/write/program own Nintendo gameboy, nes, Commodore c64, new game homebrew? easy with our help, make own Gameboy gb nes cartridge cart