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Super Mario Galaxy recompiled for Windows: Claude wrote the toolchain, not the game

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Breakdown2 min readLast edited October 13, 2026

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Super Mario Galaxy now runs as a native Windows program through the open-source Nebula, which reached 1.0 a week after its GitHub repo was created. The README is precise about who did what: Claude agents wrote the recompiler, runtime, installer, tests and docs, and the author directed, reviewed and tested them. The game logic, Mario's physics included, is still the original code, translated instruction by instruction.

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