Last updated: 8 January 2026
Welcome to MxD Studio!
MxD Studio is dedicated to protecting your privacy. This Privacy Policy (“Policy”) explains how we collect, use, and share your personal data (also known as personal information in certain jurisdictions) when you use our mobile game applications, websites, and other online products and services (together, the “Services”) or when you otherwise interact with us.
Please review this Policy before using our Services. By using our Services, you confirm that you have read, understood, and accepted this Policy.
You can manage your privacy preferences at any time through the in-game settings interface. If you have questions, please contact us using the details in Section 9 – Contact Us.
This Policy will help you understand the following:
We will collect personal data such as the data listed below in a lawful and fair manner: (a) data you provide directly to us; (b) data collected automatically when you use the Services; and (c) data received from third parties. We collect only personal data that is adequate, relevant, and limited to what is necessary for the purposes for which it is processed.
Customer support data: We collect data you provide directly when you contact customer support, provide feedback, participate in surveys or activities, or subscribe to our communications. This information may include your name, email address, delivery address, and any other details you provide. The data collected varies depending on the service used.
When you use the Services, we automatically collect certain data, including:
Identification data: a randomly generated unique ID, device ID (e.g., IDFV, Android ID), advertising ID (e.g., IDFA, GAID), unique third-party ID (e.g., Pangle ID, AppsFlyer ID), IP address, country and city information inferred from the IP address;
Device and technical data: device model, device time zone, device country, system language, CPU information, storage capacity, screen, network, operating system, and other technical data;
Game (gameplay) data: data about your interaction with the Services, such as game access time, usage logs, progress, achievements, playtime, and other gameplay information;
Ad interaction data: data about your interaction with ads in the Services. For example, information that you viewed or clicked an ad. We use this information to measure advertising, optimize it, and prevent fraud.
We may also receive information about you from third parties, including:
Social media platforms.
In certain situations, you may have the option to log in using your Google account. When you choose this method, we use Google’s account verification service and receive the necessary information (such as an encrypted authentication code and authentication status) to enable account functionality. Please note that the use of any third-party authentication solution, together with the personal data you provide to them or that they collect, is governed by Google’s terms of use, privacy policy, and other agreements. You can review Google’s policy here: https://policies.google.com/privacy.
When you participate in activities hosted on third-party platforms, we may receive information (e.g., user ID, verification status) about your participation, based on your authorization, subject to notice of the relevant activities.
App marketplaces (App Marketplaces).
When you make in-app purchases through the Apple App Store and Google Play, we receive information such as device ID, transaction time, order details (encrypted), and payment status. All payment transactions are processed through the relevant app marketplace using your marketplace account. We do not collect or store payment card details. This information is processed exclusively by the marketplace.
Sensitive data refers to data that, once disclosed or unlawfully used, may easily lead to a violation of human dignity or harm to the personal or property safety of an individual. The scope of sensitive data may vary depending on applicable law. Our Services do not intentionally collect your sensitive data.
We use your personal data for the following purposes:
To deliver the games and ensure they function properly on users’ devices, provide updates, and fix errors or crashes.
Data: Identification data; Device and technical data; Gameplay data
Legal basis: Contract necessity (Art. 6(1)(b) GDPR)
To facilitate in-game subscriptions by verifying subscription details.
Data: Data provided by app marketplaces
To enable account login, verification, and requested account features.
Data: Data provided by Google when you choose to log in with a Google account
To fulfill the terms of activities in which users participate (e.g., distributing rewards).
Data: Customer support data; Data provided by social media platforms when you participate in activities on third-party platforms
To improve game stability, security, and performance by analyzing how users interact with the games and identifying areas for improvement.
Data: Identification data; Device and technical data; Gameplay data
Legal basis: Legitimate interests (Art. 6(1)(f) GDPR)
To understand user trends, preferences, and interactions, informing data-driven decisions for optimizing the Services and user experience.
To deliver essential, non-promotional service communications (e.g., critical security updates, bug fixes, updates to Terms or Policies).
Data: Identification data
Legal basis: Contract necessity (Art. 6(1)(b) GDPR) or legitimate interests (Art. 6(1)(f) GDPR)
To send push notifications about new features, testing invitations, and other promotional content, based on your consent.
Data: Customer support data
Legal basis: Consent (Art. 6(1)(a) GDPR)
To provide support, answer questions, handle complaints, and improve services based on feedback.
Data: Customer support data
Legal basis: Legitimate interests (Art. 6(1)(f) GDPR)
To administer voluntary surveys and other activities.
Data: Customer support data
Legal basis: Consent (Art. 6(1)(a) GDPR)
To deliver, measure, and optimize the effectiveness of ads within the Services.
Data: Identification data; Device and technical data; Ad interaction data
Legal basis: Consent (Art. 6(1)(a) GDPR)
To increase game safety, detect and prevent fraud, verify identities, and protect user accounts.
Data: Identification data; Gameplay data
Legal basis: Legitimate interests (Art. 6(1)(f) GDPR)
To comply with legal obligations, such as retaining transaction records in accordance with tax and commercial laws.
Data: Identification data; Data provided by marketplaces (e.g., purchase records)
Legal basis: Legal obligation (Art. 6(1)(c) GDPR)
We do not disclose your data to third parties without a valid legal basis. Processing is justified on the basis of your consent, the necessity of performing a contract, compliance with a legal obligation, or the necessity of our legitimate interests. We may share your data with the following categories:
Our affiliates. We may share your data with companies in our group if necessary for the purposes of this Policy, ensuring contractual obligations. For international transfers, we ensure an adequate level through legal mechanisms such as Standard Contractual Clauses.
Technical service providers. We work with third-party providers (Processors) and enter into agreements that require them to protect data and process it only according to our instructions:
Advertising partners. We may share data to serve ads and measure their effectiveness. The data may include device identifiers (GAID, IDFA), IP, device and technical data, and information about ad interactions.
Legal basis and your control:
Advertising partners may process data according to their own policies. The list of main partners is available in the “Advertising Partners List”.
In addition, we may disclose your data if:
Due to the global nature of our operations, your data may be transferred, stored, and processed by affiliates, providers, and advertising partners in countries outside your country. Our storage servers are located in the eastern United States.
When the transfer constitutes an international/cross-border transfer, we rely on approved legal mechanisms and appropriate safeguards.
We are committed to keeping data secure. We apply reasonable and appropriate administrative, technical, organizational, and physical measures, in accordance with the law, to protect data against destruction, loss, alteration, unauthorized access, disclosure, or misuse.
We retain data only as long as necessary for the purposes in this Policy. After that, we delete or anonymize it, except where required by law.
Rights vary depending on jurisdiction and may include:
You can exercise your rights by contacting blocksquantum@gmail.com. We may request verification of identity and jurisdiction. We will respond within the legal timeframes (e.g., 30 days under GDPR/UK GDPR and 45 days under CCPA/CPRA). If we refuse, we will explain the reasons.
The Services are designed for users of different ages. We do not knowingly collect data from children and we do not serve targeted advertising to children, in accordance with applicable legal definitions. If you believe we have collected data about a child or delivered targeted advertising to a child contrary to our policies, contact blocksquantum@gmail.com.
We may modify this Policy periodically. If we change important aspects (e.g., the types of data collected), we will provide a visible link to the updated policy. By continuing to use the Services, you confirm that you have read and understood the updated policy.
For questions, complaints, feedback, or requests regarding data protection:
Legal basis
In each case, we process data lawfully based on one of the legal bases under European legislation. For details, see Section 2.
International transfer
We transfer data to third countries based on:
Your privacy rights
In addition to the rights in Section 6, you may have: