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Terms of Service

Playing River Run, saving progress, and sharing challenges and results.

Last updated: 2026-11-06

The current preview

River Run is a single-player browser survival game against 23 AI opponents. The current preview is free to play and does not require an account. It does not provide multiplayer matchmaking, paid game plans, or a verified leaderboard.

The game includes fictional combat. Choose whether the content is suitable for you before playing. Keyboard and mouse are recommended; touch controls require landscape orientation. Performance and availability depend on your device, browser, and connection.

Accounts and saved progress

Accounts are optional. Guest saves remain in the browser. Signed-in accounts can keep up to 10 character presets, their latest 100 completed rounds and their saved character setup across devices. Importing browser saves is an explicit action; only import your own saves. Cloud saves require a successful upload, and an interrupted connection may require a retry. Browser backups can be removed by clearing site data. An unfinished round is not backed up and may be lost when you close or reload the page.

Keep your account credentials private. Account results are personal records reported by your device, not verified competitive scores. Do not upload fabricated records as verified results or attempt to access another player’s saves.

Challenges and sharing

Daily challenges use the same starting conditions for a given date and reset at midnight UTC. Challenge links reproduce a map and starting setup, not a multiplayer session or a full replay. Game updates can change the supported rules version; an older challenge may no longer be playable with the same conditions.

You may share the result cards and challenge links provided by the game. Shared results are player-reported and must not be presented as verified leaderboard records. Check the contents of a link or image before sharing it publicly.

Responsible use

Do not disrupt the site, attempt unauthorized access, distribute malicious content through its services, or misuse the feedback channel. Keep reports relevant and do not include another person’s private information without permission.

Content and availability

Game assets and third-party materials remain subject to their respective owners’ rights and licenses. The game’s sharing features do not transfer ownership of those materials.

This is a playable preview. Features, balance, maps, and supported devices may change, and bugs or service interruptions may occur. Important changes to these terms will be reflected in the updated date on this page. If paid features are introduced later, their price and applicable terms will be presented before purchase; the current preview does not require a subscription.

Contact

For game problems, feedback, or questions about these terms, email support@musemate.ai. Include your browser, device, and what happened, but do not send passwords or payment information. See the Privacy Policy for information about local saves and data sharing.