# I thought this was a joke. Claude Opus 5 built an entire game in 24 hours. It has no third-party game assets: the world, objects, and sound are all generated with code.

*Published on: Tue, 28 Jul 2026 15:53:14 GMT*

I thought this was a joke. Claude Opus 5 built an entire game in 24 hours. It has no third-party game assets: the world, objects, and sound are all generated with code.

Play: https://longsilence.anshu.dev/
GitHub: https://github.com/achimala/TheLongSilence

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