Privacy Policy

How we handle your data

Last updated: February 2026

Introduction

Voltrine is a free online multiplayer strategic card game. This privacy policy explains what data we collect, why, and how we protect it. We value your privacy and only collect what is strictly necessary to run the game.

Data We Collect

When you create an account, we collect and store the following information:

  • Email address: used for authentication (via Lockhart)
  • Nickname: your public display name
  • Profile avatar: optional, uploaded by you
  • Game statistics: victories, defeats, ELO rating, seasons played

Why We Collect It

Your data is used exclusively for the following purposes:

  • Authentication: verifying your identity when you log in
  • Gameplay: maintaining your game state, hand, actions, and history
  • Rankings: computing and displaying ELO scores and season leaderboards
  • Profile: showing your public profile to other players (if not set to private)

Local Storage

Voltrine uses your browser's localStorage to store two items:

  • Authentication token: to keep you logged in
  • Account ID: to identify your session

These are strictly necessary for the application to function. We do not use cookies for tracking or advertising. No cookie consent banner is needed since this data is essential for authentication.

Third-Party Services

Voltrine relies on the following external services:

  • Lockhart: our authentication service, which handles login and password management
  • Google Fonts: for loading typefaces (Orbitron, Roboto, Cinzel Decorative)

Data Retention

Your data is retained for as long as your account exists. If you delete your account, all associated data (profile, statistics, game history) will be permanently removed.

Your Rights

Under the GDPR, you have the right to:

  • Access: request a copy of the data we hold about you
  • Rectification: correct any inaccurate data
  • Erasure: request deletion of your account and all associated data
  • Portability: receive your data in a structured, machine-readable format

To exercise any of these rights, contact us at the address below.

No Data Selling

We do not sell, trade, or rent your personal data to third parties. Your information is used solely for operating Voltrine.

Contact

For any questions regarding this privacy policy or your personal data, contact us at:

customer@voltrine.online

Last updated: February 2026