Claude Opus 5 one-shot a custom-coded game demo with no external assets

mattshumer_ · x · 2026-07-26

Claude Opus 5 one-shot a custom-built game demo

The author says Claude Opus 5 completed the game in a single attempt.

They also note that everything in the demo was custom code and no external assets were used. The author plans to share the prompt and code if there is enough interest, and says AI games are going to be amazing.

Related event: Claude Opus 5 Runs Custom Game Demo on First Try(3 posts)→

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