Privacy Policy
Kingdom Defender: Castle Wars · Last updated October 12, 2026
This policy explains what information Kingdom Defender: Castle Wars ("the game", "we") collects and how it is used. The game contains no advertising and no third-party analytics or tracking, and we never sell your data.
Information we collect
- Account information. If you sign up, your email address and password are handled by Google Firebase Authentication (passwords are never visible to us). Guests get an anonymous account identifier.
- Game progress. Account holders' progress (levels, resources, heroes, settings) is stored as a cloud save so it can be restored on another device. Guest progress stays on the device.
- Ranking. Your player name, level, active hero, campaign stars and Tower of Trials floor are shown on the public ranking.
- World chat. Messages you send are stored with your player name, level and hero and are visible to other players. Reports you submit are stored for moderation.
Information stored only on your device
Game settings, guest progress and the list of players you have blocked are kept on your device. Local notification reminders (for example when energy is full) are scheduled on the device only.
How we use information
Only to run the game's features: accounts, cloud saves, ranking, chat and moderation of abusive content.
Service providers
Data is stored with Google Firebase (Authentication and Cloud Firestore). See Firebase privacy information.
Retention and deletion
We keep your data while your account exists. To delete your account and all associated data (cloud save, ranking entry and chat messages), email nhthinh16.dev@gmail.com from your account's email address; we complete deletion within 30 days. Uninstalling the game removes all data stored on the device.
Children
The game is not directed to children under 13 and we do not knowingly collect personal information from them. If you believe a child has created an account, contact us and we will delete it.
Security
Data is transferred over encrypted connections and access is restricted by security rules so players can only change their own data.
Changes
We may update this policy; the date above shows the latest version.