Privacy Policy
Tower Hero Privacy Policy
This policy explains how Blockstack handles information in the mobile game Tower Hero. We are a small studio based in the Republic of Korea.
1. Who we are
Blockstack is the developer and data controller for Tower Hero. You can reach us at [email protected]. Our website is covered separately by the website privacy policy.
The game has no account system. You can play without registering, and we do not ask for your name, phone number, address, or any government identifier.
2. What we collect
| Category | Data | How | Required |
|---|---|---|---|
| Device & identifiers | Android Advertising ID, device model, OS version, country and language settings | Automatically when the game runs | Yes |
| Gameplay | Progress, battle records, leaderboard scores, session times | Generated as you play | Yes |
| Linked account | Google Play Games account identifier and display name | Only if you choose to link an account | Optional |
| Purchases | Receipt token, product ID, purchase time. We never see your card number or payment details. | When you make an in-app purchase | Only if you purchase |
| Support | Your email address and whatever you include in your message | When you contact us | Optional |
3. Why we use it
| Purpose | Legal basis (EEA / UK) |
|---|---|
| Running the game, saving progress, live leaderboards and events | Performance of a contract |
| Verifying purchases, granting items, handling refunds | Performance of a contract |
| Answering support requests, notices, coupon delivery | Performance of a contract / legitimate interests |
| Fixing crashes and improving balance | Legitimate interests |
| Detecting cheating, tampering, and ad fraud | Legitimate interests |
| Showing non-personalised ads | Legitimate interests |
| Showing personalised ads | Consent (asked separately where required) |
4. Who we share it with
We do not sell your data. We share it only with the service providers below, who process it on our behalf.
| Provider | What they do | What they receive |
|---|---|---|
| Google LLC (AdMob) | In-game advertising | Advertising ID, device info, ad events |
| Google LLC | Google Play Games (account linking, achievements), in-app purchase processing | Account identifier, receipt token |
| PlayNANOO | Leaderboards, notices, coupons and other live-ops server features | Gameplay data, leaderboard scores, device identifier |
| ONE store Co., Ltd. | In-app purchase processing for the ONE store build | Receipt token, product ID |
We may also disclose information where the law requires it, or where a lawful request is made by an authority acting within its powers.
5. International transfers
We are based in the Republic of Korea. Some providers above are located elsewhere, so your data may be transferred internationally.
| Recipient | Country | Data | When |
|---|---|---|---|
| Google LLC | United States | Advertising ID, device info, account identifier, receipt token | Ad requests, account linking, purchases |
Where these transfers involve personal data of people in the EEA or the UK, they rely on the recipients’ own transfer mechanisms, such as Standard Contractual Clauses or an adequacy decision.
6. How long we keep it
| Record | Retention |
|---|---|
| Contract and withdrawal-of-purchase records | 5 years |
| Payment and delivery records | 5 years |
| Consumer complaint and dispute records | 3 years |
| Service access logs | 3 months |
Anything not covered above is deleted once the purpose it was collected for is complete.
7. Advertising and your choices
Tower Hero is free to play and shows advertising to fund the service. You can turn off interest-based advertising or reset your identifier at any time:
Android
Open Settings → Privacy → Ads and choose Delete advertising ID or Opt out of Ads Personalisation. The exact path varies by manufacturer.
Players in the EEA, the UK, and Switzerland are shown an advertising consent screen the first time the game runs, and can change that choice later in the game’s settings.
Opting out does not remove ads — they simply will not be tailored to you.
8. Your rights
Depending on where you live, you may have the right to:
- access the personal data we hold about you
- have inaccurate data corrected
- have your data deleted
- restrict or object to how we process it
- receive your data in a portable format
- withdraw consent at any time, without affecting processing that already happened
California residents: we do not sell or share personal information as those terms are defined under the CCPA/CPRA, and we will not discriminate against you for exercising your rights.
Email [email protected] to exercise any of these. Deleting the app also removes the game data stored on your device.
If you are in the EEA or the UK, you also have the right to lodge a complaint with your local data protection authority.
9. Children
Tower Hero is not directed at young children and we do not knowingly collect personal data from them. Under Korean law we do not collect personal data from children under 14 without the consent of a legal guardian. If we learn that we have, we delete it promptly. Parents and guardians can contact [email protected].
10. Security
- Access to personal data is limited to the people who need it.
- Data in transit is protected with encrypted connections (HTTPS/TLS).
- Access records are retained and protected against tampering.
11. Contact
- Data protection officer — DaeUn Lim (Founder, Blockstack)
- Email — [email protected]
- Location — Gwacheon, Gyeonggi-do, Republic of Korea
Users in Korea may also contact the Korea Internet & Security Agency Privacy Center (privacy.kisa.or.kr, 118) or the Personal Information Dispute Mediation Committee (kopico.go.kr, 1833-6972).
12. Changes to this policy
If we change this policy we will post the update here and announce it in the game at least 7 days before it takes effect — or at least 30 days ahead if the change materially affects your rights.
- Published: 25 August 2026
- Effective: 25 August 2026