The world remembers
Relationships, factions, rumors, resources, and events persist as structured state — not a chat log that forgets.
Open-ended, persistent
Not a single chat that resets. You step into a living world with locations, factions, NPCs, and consequences that carry forward turn after turn — solo or with friends.
For players who want roleplay with a world that remembers, instead of a chatbot that forgets the scene.

Relationships, factions, rumors, resources, and events persist as structured state — not a chat log that forgets.
Write any action in plain language. The simulation interprets your move and changes the world before it narrates.
Share a link and run the same world together in a multiplayer session — something chatbots do not do.
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Failing systems and survival politics at the edge of inhabited space

Character AI is a chat companion. Altworld is a stateful life sim: it persists a whole world with consequences, and you can play it with other people.
Yes. You can start a run and play immediately, including as a guest before making an account.