Privacy Policy

Last updated: April 4, 2026

This Privacy Policy describes how Tectonic Grand ("we", "us", or "our") collects, uses, and protects your information when you use our website at www.tectonicgrand.com.

Information We Collect

We collect the following types of information:

• Account information — when you register, we collect your username, email address, and password (stored as a secure hash).
• Google OAuth — if you sign in with Google, we receive your Google account name, email address, and profile picture.
• Game data — we store your game history, Elo ratings, wins, losses, and draws.
• Usage data — we use Google Analytics to collect anonymised data about how you use the site, including pages visited and session duration.
• Session data — we use cookies to keep you logged in between sessions.

How We Use Your Information

• To provide and operate the Tectonic Grand game service
• To display your username and Elo rating in leaderboards and games
• To save your game history and track your progress
• To authenticate you securely using sessions or Google OAuth
• To analyse site usage and improve our service via Google Analytics

Data Storage

Your data is stored in a secure SQLite database hosted on Railway's European infrastructure. Passwords are hashed using bcrypt and never stored in plain text. We do not sell or share your personal data with third parties for marketing purposes.

Cookies

We use the following cookies:

• Session cookie — keeps you logged in. Expires when you log out or after a period of inactivity.
• Google Analytics cookies — used to collect anonymised usage statistics. You can opt out via your browser settings or a browser extension.

Third-Party Services

We use the following third-party services:

• Google OAuth — for social login. Subject to Google's Privacy Policy.
• Google Analytics — for usage statistics. Subject to Google's Privacy Policy.
• Railway — for hosting. Subject to Railway's Privacy Policy.

Your Rights

You have the right to:

• Access the personal data we hold about you
• Request correction of inaccurate data
• Request deletion of your account and associated data via your profile settings
• Opt out of Google Analytics tracking via browser settings

Children's Privacy

Tectonic Grand is not directed at children under 13. We do not knowingly collect personal information from children under 13. If you believe a child has provided us with personal information, please contact us so we can delete it.

Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of significant changes by updating the date at the top of this page.

Contact

If you have questions about this Privacy Policy, you can contact us at tectonicgrand@gmail.com or via our social media channels.