Mindworld

Mindworld is a free browser village where the villagers are as alive as the players. Invite Pip to your birthday and Pip decides whether to come, skips a work shift for it, walks over on time, and remembers if you never show up; then Pip tells Ama, and Ama won't sell to you until you say sorry. Villagers keep jobs, trade at prices set by real deals, hold grudges with real reasons, tell campfire stories from their memories, and challenge your pet to duels, adapting their plan to beat yours. A village newspaper reports what really happened that day, and a postcard paints the moments you shared. The problem: AI characters in games either cost a cloud call per line (too expensive to be free) or run on one strong device (shutting out everyone else). Mindworld shares local AI across the players instead. A tuned Llama 3.2 1B runs in the browser tab (WebGPU, no install); the room ranks each player's machine by measured speed and gives the villagers' minds to the strong ones, and everyone else sees the same village. When a host leaves, the minds move to the next player with their memories, so the village stays alive to the last person. Anyone can play on any hardware, for free: with no model in the tab, another player's machine, a capped cloud call, or the rules think for you. Meta's cloud models add what a 1B cannot: richer talk, the newspaper, postcards and rival plans, every call behind a daily cap with a free fallback. The game reasons, the model chooses: the simulation offers only the valid options, so a villager can never promise what the world forbids.