Privacy Policy

Underlode game · Last updated: 28 October 2026

This Privacy Policy describes how data is processed when you use the mobile game “Underlode” (the “Game”, the “app”), developed by Rastoropov (“we”, “us”). By using the Game you agree to the terms of this Policy.

The Game is available on Google Play and the App Store. The Game requires no account registration and is not intended for children under 13.

What data is collected

The Game itself does not collect personal data that directly identifies you (name, email address, phone number). However, the Game uses third-party services (Google, Unity) that automatically collect certain information:

• Advertising identifier (Google Advertising ID / IDFA) — used by Google AdMob and Unity Ads to serve and measure ads.
• Usage and event data — via Firebase Analytics: which screens are opened, in-game events, session length and session count.
• Crash and performance data — via Firebase Crashlytics: information about app crashes, stack traces, and device state at the time of the crash.
• Configuration requests — via Firebase Remote Config: the app contacts Google servers to fetch current game settings (for example, game balance values or the shop line-up). Such a request sends the app installation identifier and technical device data.
• Technical device information — device model, operating system version, language and region, IP address (which may indicate approximate country/city-level location), and unique app identifiers.

Data stored on your device only. Your game progress (unlocked planets, machines and upgrades, coins and crystals, settings) is stored locally on your device and is not sent to our servers. Deleting the Game deletes this data.

What we do not collect: name, postal address, email address, phone number, precise (GPS) location, contact list, photos, payment card details.

How the data is used

• showing ads, which allows us to offer the Game for free;
• processing and confirming in-app purchases;
• analysing how the Game is used, to fix bugs and improve the gameplay experience;
• diagnosing and resolving technical failures;
• tuning game balance and content without shipping an app update;
• keeping the Game running reliably.

In-app purchases

The Game offers optional in-app purchases (crystals). Payment is handled entirely by the store the Game was installed from — Google Play or the Apple App Store.

• we do not receive or store your payment card details, payment account, or billing address;
• the app receives only a purchase confirmation from the store (product and transaction identifiers) in order to grant what you bought;
• what you purchased is stored locally on your device together with the rest of your progress;
• billing questions, purchase history and refunds are handled by the respective store — Google Play or the App Store.

Advertising

Before showing ads for the first time, the Game may ask for your consent through Google's consent form (EU/UK/California) and, on iOS, through the system App Tracking Transparency prompt. Declining does not restrict the Game — ads simply become non-personalised.

The Game shows ads through Google AdMob and Unity Ads, including the Unity LevelPlay mediation platform. To do so, these ad networks may use your device's advertising identifier, IP address and data about your interaction with ads in order to show more relevant ads, measure their effectiveness and prevent fraud.

You can control this:

• reset or limit the use of the advertising identifier in your device settings (Android: Settings → Privacy → Ads; iOS: Settings → Privacy & Security → Tracking);
• manage Google ad personalisation at https://adssettings.google.com.

How Google uses data when serving ads is described here: https://policies.google.com/technologies/partner-sites. How Unity uses data, and how to opt out of personalised Unity ads, is described here: https://unity.com/legal/game-player-and-app-user-privacy-policy.

Third-party services

The Game uses the following third-party services, each with its own privacy policy:

• Google AdMob and other Google services — https://policies.google.com/privacy
• Unity Ads and Unity LevelPlay (Unity Technologies) — https://unity.com/legal/game-player-and-app-user-privacy-policy
• Firebase (Analytics, Crashlytics, Remote Config) — https://firebase.google.com/support/privacy
• RevenueCat (purchase receipt validation and entitlement sync) — https://www.revenuecat.com/privacy
• Google Play and Google Play Billing (Android) — https://policies.google.com/privacy
• Apple App Store (iOS) — https://www.apple.com/legal/privacy/

Storage and international data transfers

Data collected by the services listed above is processed by Google LLC, Unity Technologies and Apple Inc. on their servers, which may be located in other countries, including outside your country of residence. Retention periods are determined by the policies of those services.

Security

We rely on the data protection mechanisms provided by Google AdMob, Unity, Firebase and the app stores. No method of transmission or storage is completely secure, so we cannot guarantee absolute security.

Children

The Game is not intended for or directed at children under 13. We do not knowingly collect data from children. If you believe a child has provided us with data, please contact us and we will delete that information.

Your rights

Depending on your jurisdiction (in particular under the GDPR for users in the EU), you may have the right to access, correct or delete your data, and to object to its processing. Because the Game creates no account and stores no personal data on our servers, the main ways to exercise control are:

• opting out of personalised ads and resetting your advertising ID in your device settings;
• deleting the Game, which removes the locally stored data;
• contacting us at the address below regarding requests about data processed by Google or Unity services.

Changes to this Policy

We may update this Policy from time to time. The current version is always available at this address; the date in the “Last updated” line reflects the most recent changes.

Contact

For questions about this Privacy Policy, contact us at underlode.game@gmail.com.