Dev builds playable Back to the Future game 'Hill Valley: Outatime' on Spawn via conversation

jasonkneen · x · 2026-10-09

Developer Jason Kneen released "Hill Valley: Outatime" on the Spawn platform: drive the DeLorean to 88 mph and explore Hill Valley in 1985 and 2015, helping Doc, Marty, and Jennifer find all the components. The game was built through conversation and plays free in the browser, no download.

Notably, Spawn is agent-friendly: the game exposes public APIs so AI agents can sign up, join, and play public worlds, and can clone the source, read AGENTS.md, edit, and push to modify the game.

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