Privacy Policy

Effective: September 2026

Information We Collect

When you sign in with GitHub, we receive and store your GitHub user ID, username (login), and avatar URL. If GitHub provides them, we also store your name and email, along with the OAuth tokens received during sign-in.

If you create snakes, we store the name and URL you provide. Game history — including moves and outcomes — is stored for each game played.

For signed-in web and API-token requests, we store your account ID and the UTC date of activity. The activity record contains no request path, IP address, or browser identifier.

Play.battlesnake.com Migration Data

If you had an account on the old play.battlesnake.com, we imported your email, username, display name, profile fields (pronouns, country, backstory), and historical Play points totals as migration records. Points are not used to unlock customizations in Arena. Your play password was imported in hashed form only — it is never stored in plaintext, and it is checked only to verify a claim. When you claim your account, your play snakes and customization unlocks are merged into your Arena account.

How We Use Your Information

We use your information to:

  • Authenticate you and manage your session.
  • Display your profile and snakes.
  • Run games and store game results.
  • Maintain leaderboards and tournament results.
  • Compute aggregate usage statistics, such as daily, weekly, and monthly active accounts, to operate and improve the arena. We may publish these statistics in aggregate form; published statistics never identify individual accounts.
  • Send transactional email (via Mailgun) when your play account is claimed, as a security notice.
  • Notify you by email if your snake is removed from leaderboard matchmaking because its server keeps failing.

We do not send marketing emails. We do not show advertisements. We do not sell your data. We share it only with the service providers that run Arena on our behalf — Mailgun for transactional email and Google Cloud for hosting and storage.

Data Storage

Arena is hosted on Google Cloud. Game data from the legacy Battlesnake Engine may be archived to Google Cloud Storage.

Cookies

Arena uses a single functional session cookie (HttpOnly, Secure, SameSite=Lax) to keep you logged in. We do not use tracking cookies, analytics cookies, or advertising cookies.

Contact

Questions about privacy? Reach us on the Battlesnake Discord.