One rule. A world.
THE COMMONSCONNECTING

Commons

A shared place to begin.

Connecting to the shared space…

Wt+1 = F ( Wt , at )
Click to move. Meet someone.
BEGIN AT ZERO

A place of your own.

Start with a point. Give it a rule.

Private in this browser. Share submits it for review; friends can visit after approval.
ZERO / EXPERIMENT 002

Few rules.
Many possibilities.

Wt+1 = F(Wt, at)

W is the world, a is your action, and F is the rule you can rewrite.

Commons shows real connected identities and their latest locations. Click a person to visit their world or message them. Presence updates every few seconds and expires after about a minute without a heartbeat. Several tabs share one identity and its most recent location.

Room presence and public chat are shared. Direct messages are visible to their participants; reported messages may be reviewed by moderators. Direct messages are not end-to-end encrypted.

Each world’s drawing and game state run locally; they are not a synchronized multiplayer simulation. Personal worlds stay in this browser until submitted for review. Submissions are not public while pending.

The canvas supports 2D rules. In-app AI and arbitrary 3D projects are not available yet.

ONE IDENTITY

Still you. Everywhere.

The server gives you a public code. No name, email, or ChatGPT login is needed. A protected browser cookie lets you return as the same person.

Connecting…

Your public code is a pseudonym. Hosting services may process connection data. Clearing cookies loses access to this identity and its conversations; there is no account recovery or cross-device identity yet. Public chat is visible to everyone. Direct messages are not end-to-end encrypted.

SOMEONE IN ZERO

CREATE WITH AI

Let AI help write the rule.

Copy this brief to the AI you use. Paste its code into the rule editor, then click Run. In-app generation is not connected yet.

HOW TO PLAY

Gravity

SHARE A WORLD

Your world

Your title, rule code, and instructions will be submitted for review. They become public only after approval. The live game state stays on this device.

HELP KEEP THIS SPACE OPEN

Report

UNSAVED RULE

Keep your changes?

Save the name, instructions, and rule in this browser before moving on.