Lob shells over mountains, not metadata over the wire.
Tank Wars is a turn-based multiplayer artillery game. We collect only what's needed to host the game and let your friends join it. We use Google Analytics to understand aggregate usage and serve a single banner ad through Adsterra to keep the lights on, but we do not sell or share your data. There is no sign-in of any kind — we never see an email, phone number, or any identifier you didn't type in yourself.
To run the service, we store:
Game JSON is stored in Google Cloud Storage in our project, readable only by this application. We do not sell, share, or license this data to anyone.
We set one per-game cookie when you create or join a game. It contains the game ID, your slot number, and an expiration time, signed so the server can verify you control that tank when you take a shot. One cookie per game you've touched; nothing else.
The game URL itself also carries a copy of that same signed token
as a ?resume= query parameter, so bookmarking the page
doubles as a resume link that re-establishes your cookie on another
device. Treat the URL like a password — anyone with it plays
as you. The token is stored in your browser history but is never
sent to any third party.
We also use the browser's local storage to remember which games you've recently played and which slot you claimed in each, so the home page can show you a "Recently played" list. Clearing your browser data clears this; clearing it does not affect the game state stored on the server.
Tank Wars optionally asks for two browser permissions, both off by default and both prompted only when you click their respective buttons:
You can delete any game you created from its game page (the delete button is visible to the creator, identified by the per-game cookie set at create time). Clearing your browser cookies removes your ability to delete games you created — the games remain playable but become un-deletable from the UI.
If we ever change this policy materially, we will update this page. For any privacy question, reach out to contact@linearmotionjunctionbox.com.