Cookies and storage
Last updated: 23 October 2026
No cookies, just the storage your games need.
The short version
Etheria uses no cookies today. We use only browser storage that the games need to work, and it stays on your device. That's why you won't see a cookie banner.
What browser storage is
Your browser can keep small pieces of data for a website, on your device. Etheria uses two kinds:
- localStorage keeps things until you clear it, like your progress and settings.
- sessionStorage lasts only until you close the tab.
We don't read this data from a server, and we don't use it to track you. Almost all of it is strictly necessary to give you the game you asked for. The one exception is the small game analytics note (pm:), explained below and in our privacy policy.
Everything we store
| Name | Type | What it's for |
|---|---|---|
etheria-profile | localStorage | Your progress across Etheria: XP, Shards and streak. |
etheria-mute | localStorage | Whether sound is on or off. |
etheria-quick | localStorage | Quick Play: the games you played recently, so we can show them under Keep playing. |
etheria-world-url | localStorage | The way back to the World from inside a game. |
etheria-arrive | sessionStorage | Smooth page transitions. Cleared when you close the tab. |
etheria-return | sessionStorage | Smooth page transitions. Cleared when you close the tab. |
etheria-home | localStorage | Whether we've offered to put Etheria on your home screen, so we don't ask too often. |
pm: plus a game, for example pm:metro | localStorage | Game analytics: only the day you first and last played that game, so we can count returning players without an identifier. Off if your browser sends Do Not Track or Global Privacy Control. |
Each game's own keys, for example mc-music and the city saves | localStorage | That game's saves and settings, such as your Metropolis 3000 cities and its music setting. |
How to clear it
Open your browser's settings and clear site data (sometimes called cookies and site data) for etheria.games. This deletes your progress, Shards and settings on that device and can't be undone, because we don't keep a copy.
Other services
Pages load fonts from Google Fonts for now. The site and its games are served by Cloudflare. Game pages load Playmetry, NOJU's own game analytics. These requests share basic technical data, as explained in our privacy policy. Our analytics set no cookies.
If this changes
If we ever add cookies or storage that isn't strictly necessary, for example for ads or third-party analytics, we'll ask for your consent first where the law requires it, and update this page.