Privacy Policy

Last updated: April 2026

Num21 ("we", "the game") is a free-to-play browser-based puzzle game available at num21.com. This Privacy Policy explains how we handle information when you use our game.

Information We Collect

We collect minimal information to provide the game experience:

• Nickname: A name you choose for the leaderboard. This is stored locally on your device only.
• Game scores: Your scores are stored locally in your browser's localStorage. They are not transmitted to any server.
• No personal data: We do not collect your real name, email, phone number, or any personally identifiable information.

Cookies and Local Storage

The game uses browser localStorage to save:

• Your high score and leaderboard data
• Your chosen nickname
• Tutorial completion status

This data stays on your device and is never sent to our servers.

Third-Party Advertising

We use Google AdSense to display advertisements. Google may use cookies and web beacons to serve ads based on your prior visits to this and other websites. Specifically:

• Google uses the DoubleClick cookie to serve ads.
• You may opt out of personalized advertising by visiting Google Ads Settings.
• You may opt out of third-party cookies by visiting aboutads.info.

For more information, see How Google uses data when you use our partners' sites.

Children's Privacy

This game is intended for general audiences. We do not knowingly collect personal information from children under 13. Since we do not collect personal data, no special provisions are required.

Data Security

All game data is stored locally on your device. We do not operate servers that store user data. The game runs entirely in your browser.

Changes to This Policy

We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated date.

Contact

If you have questions about this Privacy Policy, please contact us at: num21game@gmail.com