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Iterplay

Built at Gemini 4 Argon SF Hackathon · Oct 25, 2026 · San Francisco, CA

Demo video · youtube.com/…

Iterplay turns a design doc into a browser game (for now, a single-level 2D platformer), then improves it automatically. Gemini writes the game, bots play it while being recorded, Gemini critiques the footage against the design doc, a deterministic verifier checks every claim against telemetry, and the fixer patches the code. The loop repeats until the game meets its rubric.

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