Privacy

In short

• The tracker only sends the summary of your matches, detailed below, and only after you have accepted its charter.
• The site works without an account. If you sign in, with Steam or with Google, it keeps the id of that account, its name and its profile picture, and the name you choose on Tierz.
• The site sets a single cookie, the one that keeps you signed in. There is no advertising cookie. Page views are counted without a cookie and without keeping anything about you.
• Your profile is private: only you see your matches.

What the tracker sends

After each match, and for the matches already recorded on your PC, the tracker sends Tierz:

• the result, the game mode, the length, the number of turns and the start and end dates;
• your deck and your opponent’s;
• your place on the leaderboard and your stars, and your opponent’s;
• your in-game name and the id of your game account;
• a fingerprint of your opponent’s id, from which their name cannot be found;
• the version of the game.

It never sends your opponent’s name, the replay files, the game’s log or the connection tickets it contains. Those files stay on your PC.

To send, each tracker receives a token the first time it starts. The server only keeps a fingerprint of it, with the date it was last used. To limit abuse, it also keeps, temporarily, a fingerprint of the network address a tracker registers from.

The tracker updates itself: it regularly asks GitHub, which hosts its installers, whether a new version exists, and downloads it. That request contains nothing about your matches or your account.

If you sign in

You sign in with your Steam account or your Google account. Signing in happens on their side: Tierz never sees your password.

With Steam, we receive your Steam id, and we read your public name and avatar on your Steam page. With Google, we receive the id of your account, your name and your profile picture: neither your e-mail address nor anything else from your Google account.

The first time you sign in, you choose the name you appear under on Tierz. It belongs to you alone and you can change it from your profile.

When you link a tracker to your account, the game accounts it sent matches for are attached to your account, which gives you your profile.

When you like a deck, the site remembers that your account likes it, to rank the decks. Nobody else sees which decks you like, and you can take your like back at any time.

Cookies and content from elsewhere

When you sign in, the site sets a session cookie, needed to recognise you from one page to the next. It goes away when you sign out or when it expires. During the few minutes of the round trip to Steam or Google, short technical cookies keep the page you were heading to. The site sets no other.

To know which pages are read, the site counts the pages opened: the page, the day, and the kind of place you come from (a search engine, a social network, another page of the site). It is a plain counter, without a cookie: neither your network address, nor an identifier, nor the exact address of the page you come from is kept.

The card pictures are loaded from the game’s official site, spamgame.com: to show them, your browser talks to their server.

The videos offered on a deck’s page come from YouTube. The player is embedded in its cookie-free version: YouTube only sets cookies if you start the video.

If the site one day shows advertising, or measures its audience in any other way than this counter, this page will say so first and your consent will be asked.

Where the data is kept, and who sees it

The data is kept in a database hosted by Neon in Frankfurt (Germany). The site is served by Vercel, a company established in the United States.

The site’s public statistics are totals per deck and per card: they show no player name. Your profile and your match history are visible to you alone, once signed in.

Tierz neither sells nor hands this data over to anyone.

Getting your data back, or deleting it

From your profile, you can download everything kept about your account, as a file, and delete your account.

Deleting erases your account, your sign-ins, the decks you liked and the registration of your trackers, and detaches your game accounts from anyone. The matches already sent stay in the statistics, like those of a player who never had an account.

For a request the profile does not allow (access, correction, erasure of matches), write to contact@tierz.gg. You can also turn to your data protection authority (in France, the CNIL) if you believe your rights are not respected.