Terms & current costs

Updated 31 October 2026. OpenWorld is operated by Nir Feinstein. These terms describe the current experimental game studio.

What costs money

Free: play the base game, browse published games and use the account features. Included beta: limited text-only Claude edits may be offered without a key or signup. Up to two attempts per rolling 24 hours share network and service budget limits; availability is not guaranteed, and failed or uncertain provider attempts may count. Larger game contexts and images need your own key. Bring your own key: this optional mode uses your Anthropic API key. Anthropic bills your account under its own pricing and terms; check your provider limits before sending a request. Paid plan: OpenWorld currently sells no subscription or paid game-edit plan and collects no payment. A free account does not include free Anthropic usage.

Your use and contributions

Use your own account and provider key, protect your private links and credentials, and submit only content you are entitled to use. Do not abuse the service, try to access another person's work or run harmful code. AI changes can fail or introduce bugs; inspect each result. Prior versions help you recover, but uninterrupted availability, preservation forever and any particular generated result are not guaranteed.

Sharing or publishing makes your chosen game and public description available to others. A suggested contribution is private until the operator reviews it; an approved contribution may be copied into the shared base game. Account deletion does not automatically revert that shared contribution or recall downloaded public copies. See Privacy for export, deletion and backup limits. You keep responsibility for the content you submit; this page does not claim ownership of third-party game assets.

Support and changes

Use Contact for feedback, partnerships and privacy requests. It is not an urgent-support channel, and no response deadline is promised. Features and these terms may change; the current date appears above. Do not use this experimental service for safety-critical decisions.