Opus 5.5 builds and self-tests a 20-car F1 browser game
Claude Opus 5.5 built an F1 game with start lights and DRS without an engine or assets, then drove it, ran a full race and fixed visuals and AI.
Claude Opus 5.5 built an F1 game with 20 cars, start lights and DRS. No game engine, no 3D assets, one session. Then it tested the game itself: > held the throttle: 0 to 186 km/h in 6 seconds > steered, braked, hit a wall, hit reset > ran a full race at 6x speed: 20 of 20 cars finished, 60 fps > looked at its own screenshots and fixed the washed-out paint and the single-file AI The prompt ended with "Start building, then verify it, and tell me when it's done." The full course on building and shipping a browser game like this is below ↓
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