Doom Hacker Gets Doom Running in Doom

Getting Doom to run on things that were never meant to run Doom is something of a cottage industry among a die-hard subset of PC hackers and coders. Your motherboard’s BIOS, a bunch of old potatoes, a Lego brick, a home pregnancy test: The list goes on and on. But YouTuber and Doomworld community member kgsws has set a new standard for, well, something with this brilliant bit of techno-recursion: Doom running in Doom.

The full explanation for how it works gets technical but what it comes down to is an exploit that enables code execution within the game itself. That’s why this bit of trickery only works with the original DOS-based Doom 2, and not any of the more modern ports like GZDoom, which lack the exploit. (That’s not convenient for this project but it’s a good thing overall, kgsws noted: “People would abuse it to spread malicious code.”)