Privacy

Last updated: 9 October 2026

Playing 15-0 needs no account. An account is only needed to appear on the leaderboard and to keep your trophies beyond your browser.

If you sign in with Google

• The identifier Google gives your account for this game. We do not keep your email or photo; your first name is only used to suggest a nickname and is not stored.
• The nickname you choose.
• The games you publish: your moves (rolls, signings, coach) and your result, so that anyone can check them.
• The trophies you earn and when.
• A session cookie to keep you signed in, for 180 days.

In rooms with friends

While a room lasts we keep the nickname you type in it, a random identifier of your browser to recognise you if you come back, your formation and your moves. Everyone who joins with the code sees them. A room nobody is in for a few hours is cleared.

In your browser

15-0 keeps in your browser (local storage, not cookies) the language, your nickname, your team name, the format and view you chose, that room identifier, your trophies and an unfinished game waiting to be published. None of it leaves your browser except as described above.

Cookies and advertising

15-0 only shows you an ad when you ask for one, in exchange for extra re-rolls. Those ads are served by Google AdSense. Third party vendors, including Google, use cookies to serve ads based on a user’s prior visits to this website or other websites. Google’s use of advertising cookies enables it and its partners to serve ads to you based on your visits to 15-0 and/or other sites on the Internet.

When you arrive we ask for your consent with Google’s consent message, and you can change your choice at any time with “Manage cookies” at the foot of the page. You can opt out of personalised advertising in Google’s Ads Settings or at www.aboutads.info. The other cookies are technical; the details are on Cookies.

With that same consent, Google Analytics tells us how many people visit, where they come from and how much they play: page views, time in the game, games started and finished, challenges published and rooms created. Without your consent it keeps no cookies or identifiers. Google handles that data under its own policy.

Who sees it

The leaderboard shows your nickname and results to anyone. If you accept the ads, Google receives the data its advertising cookies use, under its own policy. Nothing else is shared with anyone. The data is stored with Cloudflare.

Deleting your account

On the leaderboard, “Delete my account” instantly deletes your account, your results and your trophies.