Quad Chase has no accounts and collects as little as possible.

On your device — preferences and progress (theme, sound, skins, bests, checkpoints) live in your browser's local storage and never leave it unless listed below.

Your disc — creating one registers it with us and gives it a code. When a run ends we receive a short summary: its name and colour, stats, coins, skills, arena depth, PVP record and your best scores. The descent you are part-way through stays on your device. The same request tells us the country (sometimes the city) the run came from, worked out from the connection by our host — we do not store your IP address.

Leaderboards — submitting a score stores the display name you typed and the score, publicly. Don't use your real name if you don't want it shown.

Bug reports & crashes — a report you send, or an automatic crash report, includes your message plus basic technical context (browser, screen size, build) so we can reproduce it.

Analytics — on quadchase.com we count page views and where visits came from (Vercel Web Analytics). No cookies, no cross-site tracking, no profile — totals only. Not in the Android app, not on portals.

Cloud backup — pressing SAVE in the den is separate, and is the only thing that makes a profile you can restore, including the descent in progress. A disc that was only registered cannot be restored. It is a backup, not an account: no email, no password, and the code is the only key — keep it. The one personal detail is the name you typed on your disc. Deletion: send us the code.

Multiplayer — phones connect to each other directly (WebRTC). A public broker (PeerJS) only introduces the devices; game traffic is peer-to-peer and not stored.

Ads — the Android app shows ads via Google AdMob, which uses your device's advertising ID. On game portals (e.g. CrazyGames) ads are the portal's, under its own policy. quadchase.com is adding Google AdSense; ads aren't serving there yet, and EEA/UK visitors are asked for consent before any ad cookies are set.

Contact / deletion — team@quadchase.com (e.g. to remove a leaderboard name).