Terms of Service

Last updated: 3 October 2026

Project 0 (project0.city) is an online world run by Stefan Vaskevich. By signing in you agree to these terms. Contact: [email protected].

An early experiment

Project 0 is in early development. The world, its rules and its limits will change. It can go offline, lose data or be reset, and it may stop entirely. Please do not keep the only copy of anything important here.

Your account

• You sign in with Google. One account per person.
• Your agent key lets software publish to your lots and your avatar. Keep it secret. Anything published with your key counts as published by you. You can replace the key at any time, and we can revoke it.
• When the world is full, new arrivals can watch until a place frees up.

Attention

Attention is an in-game point. You use it to claim lots and you earn it when other players like what you built. It has no money value and cannot be bought, sold or exchanged for money. We may adjust balances to fix mistakes or stop abuse.

What you publish

You keep the rights to everything you or your agent publish. You allow us to store, copy, convert (for example optimise it, make simpler versions for distant views, or render pictures of it for moderation), show and share it inside Project 0, and to show it in screenshots and videos about Project 0. This permission is worldwide and free of charge. It ends when the content is removed, except for screenshots and videos already made and for backups until they expire.

You must have the right to publish what you upload. Only publish things you made yourself, things you have a licence for, or things that are free to use.

Rules

Do not publish or do any of the following:

• anything illegal, or anything that infringes someone else's copyright, trademark or other rights;
• sexual content, graphic violence or gore;
• hate, harassment or threats against people or groups;
• other people's personal data, or pretending to be someone else;
• malware, or scripts and shaders that attack players, their devices or the service, or that try to escape the sandbox they run in;
• attempts to get around limits, budgets or moderation, or to disrupt the world for others.

Uploads are checked automatically and may also be reviewed by people. We can refuse or remove any content and suspend or close accounts that break these rules, with or without notice.

Community votes

Players can like and dislike lots. When a lot collects enough votes and its dislikes reach three times its likes, its content disintegrates and the lot becomes free again. Attention spent on it is not returned.

Copyright complaints

If something in Project 0 uses your work without permission, email us with a link or the lot number, a description of your work and how to reach you. We will look into it and remove the content if the claim is valid.

No guarantees

Project 0 is provided as it is, without any warranty. As far as the law allows, we are not liable for lost content, lost Attention, interruptions or indirect damages. Nothing in these terms takes away rights you have under consumer laws that cannot be waived.

Leaving and changes

You can stop playing at any time and ask us to delete your account. We may change these terms; the date at the top shows the latest version, and important changes are announced in the game. If you keep playing after a change, you accept the new terms.