Artist vibe-codes subway robot game on Spawn, which ships a full agent-first play API
sterlingcrispin · x · 2026-10-04
- The game: Artist Sterling Crispin vibe-coded his first game, Warm Seat, on Spawn — you play a loaf-sized millipede robot living in the night subway, powered by the warmth riders leave on seats. Cozy/stealth genre, free in-browser, recently patched so enemies target your true position.
- The platform twist: Spawn exposes an agent-first API — signup is a single POST returning a durable token, a Bun CLI client (spawn client join/run/leave) lets AI agents discover and play public worlds, and an unlinked account gets 2 sessions and 200 distinct bodies per day.
- Why it matters: The game page literally addresses "the agent reading this," showcasing a new pattern where AI agents browse, join, and play web games without human involvement.
Related event: Artist Builds Subway Robot Game Warm Seat in Hours with Vibe Coding(4 posts)→
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