Privacy

Last updated September 27, 2026

Cannonzone keeps as little about you as it can. You play as a guest: there is no sign-up, and to play we never ask for your email, real name, age, location or any contact details. Only if you want to make community levels do you sign in with Google (see below). This page explains everything the game does store, and why.

Your guest profile

The first time you open the game, our server creates a guest profile for you and sends your browser a random secret key that proves the profile is yours. The profile holds:

A random ID and a player name (Player-1234 style unless you change it).
Your coin balance and the skins you own and wear.
When the profile was created and when it was last used.

We store only a one-way hash of your secret key, never the key itself, so not even we can read it back.

What we record while you play

Coins you collect: which coin, in which level, and when. This is what lets coins pay out once and keeps your balance right across sessions.
Level attempts: the level version you played, when you started, and the shots you fired (cannon and timing). We replay these shots to check that pickups are genuine and to stop cheating.
Wallet history: every change to your coin balance (pickups and skin purchases), so it can be audited.
Rejected events: if a pickup fails our anti-cheat checks, we keep that event and the reason it was refused.

We use this data only to run the game: to keep your progress and coins, to sell you skins for coins, and to keep the game fair. We don't sell it, share it with advertisers, or use it to build a profile of you.

Community levels

When you play levels made by other players, we also record:

Plays: that you fired a shot in a community level, and whether you cleared it, with the shots of your first clear. This makes the level's clear rate, and lets us check clears are genuine.
Votes: your like or dislike on a level, and when you last changed it.
Reports: levels you report, the reason and any details you write.

Your plays and votes may later be used to recommend levels you might like, inside the game only. Other players see only totals (how many played, cleared, liked), never who did.

Signing in to make levels

To make community levels you sign in with Google in the level editor. That links your Google account to your guest profile, and we store:

Your Google account ID and email address. The email is only ever shown to our moderators, never to players.
The levels you make: their content, name, description and tags, and when you submitted them.
When you accepted the Terms of Use.
Moderation decisions about your levels or your profile (for example a rejection note or a ban), and why.

Your player name is shown with the levels you publish. Signing in loads Google's sign-in script in the editor, so Google sees that you signed in to Cannonzone; see Google's privacy policy. Signing in on another device with the same account gives you the same profile there.

Your IP address

When you create a guest profile, the server looks at your IP address to limit how many new profiles can be made from one place in an hour. That check happens in memory and the address is not saved to our database. Our hosting provider may keep standard request logs, as every web host does.

Stored on your device

The game saves a few things in your browser's local storage so it can start quickly and work offline. They stay on your device:

What	Why
Your guest key	Keeps you signed in to your guest profile.
A copy of your profile	Shows your coins and skins before the server answers.
Coins waiting to sync	Coins you pick up offline, sent to the server once you're back online.
The level list	Lets the game start fast and play offline.
Community plays waiting to sync	Community levels you played or cleared, sent to the server once you're back online.
Your editor sign-in	The Google email you signed in with in the level editor, so it stays signed in.
Your best times	Your best run on each level, and which levels are unlocked.
Sound on/off	Remembers whether you muted the game.

We don't use cookies, analytics, ads or any third-party trackers. The game makes no requests to anyone but our own server; the level editor also talks to Google when you sign in.

Keeping or removing your data

Your guest profile is tied to the key saved in this browser. If you clear your browser's site data, the key is gone and so is your access to that profile: you start fresh as a new guest, and the old profile can no longer be used. If you signed in with Google, signing in again gets the profile back. If you'd like your profile and everything recorded for it deleted from our server, contact us and we'll remove it, together with the levels you made.

Changes

If the game starts collecting something new, for example if we add real-money purchases, we'll update this page before that happens and change the date at the top.

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