Worlds that build themselves
from what you imagine.

Start with an empty plane. Describe anything — a volcano, a racing game, a 3D city — and watch Claude build it into the live world while everyone plays.

1. 1Create a blank world, or remix one you love.
2. 2Add your Anthropic key, or connect your own computer as a builder.
3. 3Imagine. Every idea lands live for everyone.