Doom64KB runs on a Neo Geo emulator with two playable levels
FrenkelS got Doom64KB running through E1M1 and E1M8 on a Neo Geo emulator, turning SNK's sprite machine into a two-level Doom testbed.
FrenkelS has gotten Doom64KB running on a Neo Geo emulator with two playable levels, E1M1 and E1M8. The result is exactly the kind of ridiculous hardware collision retro developers love: a Doom engine built for machines with only 64 KB of RAM, now pushed through SNK’s Neo Geo ecosystem.
Doom64KB is not a fresh idea bolted onto a flashy wrapper. The project is a port for computers with only 64 KB of RAM, and it traces back to Doom8088, the Doom port for 16-bit DOS computers. That lineage explains the obsession with squeezing an engine into places it was never supposed to fit. On the Neo Geo side, the challenge is even stranger, because the AES is best known as a 2D sprite-pushing machine, not a system built to handle 3D rendering. That mismatch is exactly what makes the porting work stand out.
This is also more than a crude Doom-shaped imitation. The build uses Doom maps and assets properly, and it keeps the verticality that gave the original engine so much of its identity. In other words, the point is not just to make something that moves like Doom for a few seconds. It is to preserve the game’s structure and logic while forcing it through hardware that was never meant to host it.
The public Doom64KB repository adds another clue that the Neo Geo work was active and specific, not just theoretical. It includes a dedicated neogeo directory, and its commit history shows Neo Geo-related activity in mid-June 2026. The repository itself still identifies Doom64KB as a 64 KB RAM port based on Doom8088, which makes the Neo Geo adaptation feel like an experimental branch of a deeply constrained project rather than a polished one-off release.
That is the appeal for emulator people. Nobody is lining up to replace a native Doom port with a Neo Geo version, but projects like this expand what the scene can ask from old hardware and the emulators that model it. They sharpen tooling, expose edge cases, and show how far a classic engine can be bent before it breaks. For a machine like the Neo Geo, seeing E1M1 and E1M8 load at all is enough to make the absurdity feel like progress.
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