GPT-6 Astra built a Manhattan world in Unreal Engine street by street over a week
chongdashu · x · 2026-09-04
Developer mattshumer showed off GPT-6 Astra building a Manhattan world in Unreal Engine over the course of a week — going street by street to make each one perfect. Commenters are asking how it interfaced with Unreal (via MCP?), highlighting growing interest in agents operating professional 3D engines directly.
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