Updated 28 October 2026
Privacy
Berlin Zero Hour is a browser adventure maintained by Teemu Kinos. Contact teemu@skene.ai about your game account or personal data.
Play without an account
You can play the free first chapter without signing in. The game stores progress and settings in your browser. Clearing this site’s browser storage removes those local copies. Export a backup from Save / load first if you want to keep your progress.
Google sign-in
Signing in is optional. Google provides your account identifier, email address and basic profile information, which may include your name and profile picture. Supabase handles sign-in and stores your game account and Google identity metadata. We use this information to identify your account and connect it to your cloud save and any verified game access.
The game requests only basic identity, email and profile permissions. It does not request access to Gmail messages, Drive files, contacts or your Google password. Your browser stores a sign-in session so you can stay signed in. Signing out removes that session from this device; it does not delete your account or cloud save.
Optional cloud saves
Choosing “Save this device to cloud” sends your game progress to Supabase, together with your game account ID and a save timestamp. Progress includes your chapter, location, inventory and story choices. The game keeps one current cloud copy per account. Uploading replaces that copy. Restoring it replaces your local progress only after you choose to do so.
Hosting and data use
Vercel hosts the website and processes requests to its account and save APIs. Supabase provides authentication and the game database, hosted in Frankfurt. Google processes your sign-in. These providers may process technical information such as IP addresses, request times and errors to operate and protect their services.
Google account data is used for game account features, support and security. We do not sell it or use it for advertising. This game does not include advertising trackers. Provider practices are described in the Google privacy policy, Supabase privacy policy and Vercel privacy policy.
Payments
Payments are currently paused. The planned full-game price is US$9.99. No payment is collected by the current game checkout.
Your data and choices
Account and cloud-save records remain until removed; signing out does not remove them. To request a copy, correction or deletion of your game account and cloud save, email teemu@skene.ai from the account’s email address. We may need to verify account ownership. Operational backups and provider logs can remain for their retention periods after active records are removed.
You can also remove this app’s Google access through your Google Account connections. This stops future Google authorization but does not itself delete the game account. The game is intended for adults.