IOCCC 2025 Winners

• The GameBoy emulator’s code resembles the GameBoy.
• A 366-byte C program can run Linux and Doom.
• The IOCCC permits LLM use in their guidelines.

The Internet’s Verdict: 70% Hyped, 30% Skeptical

Forum Reactions

The GameBoy emulator’s code also looks like the GameBoy. Slow clap this is insane, definitely my favorite entry.

Technical Achievements

One entry is a 366-byte C program emulator that can run Linux and Doom.

My favorite is the 366-byte C program emulator that can run Linux and Doom.

The IOCCC website is also obfuscated, making it hard to find the C sources.

Focus Keyword: IOCCC Winners