Claude Opus 5 reportedly one-shot a fully custom game demo

mattshumer_ · x · 2026-07-27

Claude Opus 5 reportedly one-shot a custom-built game demo, and the author says everything in the video was custom code with no external assets.

The post argues the demo is real, urges skeptics to run the prompt themselves, and frames it as a sign that AI games will get much better.

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