Codex spent 26 days rebuilding Red Alert 2 in 624K lines of C++ for iOS/macOS
dyn___ · x · 2026-09-03
- A developer tasked Codex (GPT-5.6 Sol) with making Red Alert 2: Yuri's Revenge compile and run natively on iOS and macOS. The game's source code was never released and is believed lost, so Codex had to analyze the EXE and rebuild the entire game in C++.
- The run took 26 days and produced 624K lines of C++, fully reconstructing the game — described as the hardest task ever given to Codex.
Related event: Codex Rewrites Red Alert 2 in 620,000 Lines of C++ for iOS and macOS(2 posts)→
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