Privacy policy for Tower of Chess

Version 1, October 22, 2026. Ler em português

This policy explains which data the Tower of Chess game stores, what it is used for, where it is kept and how you can delete it. It applies to the Android version (Google Play) and to the TikTok version.

Who we are

Tower of Chess is published by Dotnova Tecnologia e Desenvolvimento de Software LTDA, a Brazilian company with CNPJ 54.543.885/0001-02, which is the controller of the data described here. For any privacy matter, write to contato@dotnova.io.

What the game stores and why

The game does not ask you to sign up. The first time you open the game, your device generates a random identifier that has nothing to do with your name, your phone number or the device itself. This identifier links you to your progress on our server. We store:

• In-game identity: the random identifier, the platform (Android or TikTok), the game language and a nickname in the form Torre#1234, created by the server.
• Progress: your floor in the Tower, rating, points, number of attempts, energy and the time of the last refill, unlocked cosmetic boards, rewards received (which one and when), and the dates your profile was created and last used.
• Games: for each puzzle, which puzzle was played, the moves made, the time in seconds and the result. We also store your Storm runs and best score, the dates you played the daily puzzle and your streak of days.
• League: your division, group, points for the week and the result of the last league. The other players in your weekly group see your public name (the Torre#1234 nickname or, in the TikTok version, your TikTok name if you authorize it) together with your league points.
• Challenges and friends: the challenges you created or played and the attempts at each one, the number of challenges won and the friends list built from them (the identifier, nickname and date of each player who played a challenge with you). Anyone who opens one of your challenges sees your public name and your time, and players who played a challenge with you see your public name and your floor in their friends list.
• Usage events: batches of events with date and time (for example, opening the game, starting and finishing a puzzle, viewing the league, sharing a challenge), to understand how the game is used and to fix problems.

We use this data only to run the game (saving your progress, building the league and the challenges, giving out rewards and preventing abuse) and to improve the game. From the events, the server computes aggregated, anonymous daily numbers, such as how many people played on a given day, which do not identify anyone.

What we do not store

The game does not collect email addresses, phone numbers, contact lists, location or the device's advertising identifier.

TikTok version

In the TikTok version, we also store the identifier TikTok provides to the game (open_id), to link your TikTok account to your progress. Your TikTok name and profile picture are stored only if you authorize it in the game's profile, and are used only to show you inside the game. Other players see the name in the places described above (the league group, challenges and friends lists); only you see the picture.

Where the data is kept and for how long

The data is kept in Google Cloud Firestore, a Google service, in the us-central1 region (United States). This means the data is transferred internationally, to a provider that applies appropriate security measures.

Usage events are deleted automatically after 90 days. All other data is kept for as long as the game exists. When you delete your data (see "Your rights"), it is no longer linked to you.

We do not sell data and we do not share it with third parties, except with Google, which stores the data for us.

Ads

The Android version has no ads. In the TikTok version, ads are shown by TikTok itself, under TikTok's privacy policy. The game does not send your data to advertisers.

Children

Tower of Chess is not directed at children under 13, and we do not knowingly collect data from children under that age. If you learn that a child under 13 has used the game, write to contato@dotnova.io and we will delete the data.

Your rights

Under the Brazilian General Data Protection Law (LGPD), you have the right to:

• know whether we process your data and access it;
• correct incomplete, inaccurate or outdated data;
• ask for your data to be deleted;
• know who your data is shared with.

To delete your data, tap Delete my data in the game settings. This deletes your profile on the server (with your progress and friends list) and the identifier stored on your device. The other game records (attempts, Storm runs, daily puzzles, rewards and events) are kept only with a random code and are no longer linked to you. The records of challenges you created, of league groups and of other players' friends lists keep the public name you used at the time, and usage events are deleted after 90 days. To have your name removed from those records, for other requests, or if you cannot use the button, write to contato@dotnova.io. We reply within 15 days.

Changes to this policy

If this policy changes, we will publish the new version on this page, with the new date and version number.

Date

This is version 1 of the policy, published on October 22, 2026.