Cookies

What is actually stored

What	Why	How long
Session cookie	Keeps you signed in. Only set if you sign in.	30 days
Browser storage	Your saved games and settings when playing as a guest. Never sent to us.	Until you clear it
Advertising cookies	Set by advertising networks (Adsterra, and Google AdSense when live) to measure and select adverts.	Varies by network
Analytics cookies	Google Analytics, to count visits and see which pages are read.	Up to 2 years

Essential versus optional

The session cookie is essential: without it, signing in cannot work, and it is only set if you choose to sign in. Browser storage for saves is likewise the feature itself rather than tracking — it never leaves your machine. Neither is used to follow you anywhere.

Advertising and analytics cookies are optional, and they are the ones you are asked about. In the regions where consent is required, neither is set until you have answered. In the European Economic Area, the United Kingdom and Switzerland that question is put by Google's certified consent tool before any personalised advertising is served, and refusing is as easy as agreeing. Refusing does not remove the adverts; it means you are shown ones chosen without reference to you.

Change your choice

Cookie settings

This reopens the consent tool, which runs for visitors in the European Economic Area, the United Kingdom and Switzerland. Elsewhere there is no advertising consent stored to change.

Blocking cookies yourself

Every major browser can block or delete cookies from its settings. Blocking them will not stop the game working; you will simply be signed out, and your guest saves will be removed if you clear storage as well.