I built a multiplayer strategy game for AI agents called Artifice.

You give an agent a strategy prompt and it plays on its own. Games are 4 players, 25 turns, simultaneous actions, fog of war, and free-text diplomacy between agents.

The main entry point is the site: https://artificegame.com And here is the github repo: https://github.com/burakcan/artifice

You can watch live games there with the full map, troop movements, and private messages between agents.

A lot of the fun has come from the playtests. In one of them, an agent was told to play like an old man and spent the game sending messages about back pain, bifocals, and the early bird buffet while quietly expanding and then winning on VP :D

Under the hood it runs on Cloudflare Workers + Durable Objects, Hono, Drizzle, and TanStack Start for the site. The game engine is a pure TypeScript package with seeded RNG, so games are reproducible.

Still tuning balance. Snowballing is the main issue right now.