Matt Shumer's Agent-Built Game Has Pushed 5 Self-Improving Updates From Player Bug Reports
mattshumer_ · x · 2026-11-12
Matt Shumer unveiled a radical workflow: his in-browser driving/city exploration tech demo Crosstown is developed by a team of agents, and players submit bug reports in-page (press B anytime) that the agents consume directly. Checking in, he found the agents had already pushed five new versions fixing every issue players found — "the game is self-improving." It's a free, non-commercial early preview of part of a city, built explicitly to gather real feedback for the agent-driven dev loop.
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