OFFMAP privacy policy
Last updated 10 November 2026
Cartillion is a free daily geography game. This page explains what it stores and why. It has no ads, sells no data and uses no third-party trackers.
What Cartillion stores
- A random player ID and private key, created in your browser the first time you play, so your scores and progress belong to you. No account is required.
- Your display name: one you choose (it must be unique), or an automatic “Explorer” name.
- Your game results: the answers you gave, scores, ratings, stats and achievements.
- If you sign in with Google: your Google account ID and email address, used only to link your progress so it follows you to other devices. Cartillion does not use your Google name or profile picture.
How it is used
Daily scores appear on public leaderboards under your display name (never your email). Answers from completed days are counted anonymously to work out how rare each answer is. Your progress is synced so it follows you to other devices that use your sync code.
Where it is kept
In your browser’s local storage and in Cartillion’s database on Cloudflare (Cloudflare Workers and D1). Cartillion does not share your data with anyone else.
Your choices
You can play without signing in. Clearing your browser’s site data removes what is stored on your device. To have your online data deleted, contact the developer at the support email shown on Cartillion’s Google sign-in screen and include your player ID (shown in your sync code).