Matt Shumer builds Hogwarts live on Spawn with AI in a multiplayer world

mattshumer_ · x · 2026-10-06

Matt Shumer is live-building Hogwarts on Spawn, a multiplayer platform where games are created through conversation with AI. The project exposes full agent APIs — signup, join, CPU rendering via Playwright, and git-based co-building — letting AI agents play and modify the world directly.

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