Privacy

Updated 9 October 2026.

What the city uses

Your callsign, messages, avatar position and session identifier let the shared city and chat work. Other visitors can see your callsign, messages and avatar. Please keep private information out of public chat.

Entry requires your public Solana wallet address and a signed sign-in message to verify wallet ownership. We check the required token balance through a Solana RPC provider at entry and during your session. We never ask for your private key.

Network providers receive connection information such as your IP address to deliver the site. This app has no advertising or analytics trackers. Fonts are served by this website. Market and holder feeds are fetched by our server from DexScreener and Helius; those requests do not contain your callsign or chat.

Storage and retention

• Necessary sign-in cookies keep your session active: up to 12 hours for wallet sessions. A wallet sign-in challenge expires after 5 minutes. Signing out revokes your session.
• Chat keeps only the latest 150 messages, for at most 24 hours, in server memory. A server restart clears them. Live player state is removed when you disconnect.
• Remember on this device is optional and off by default. If you choose it, your browser stores your callsign and that choice until you remove them. Uncheck it or select Forget saved name in the callsign editor to withdraw the choice.
• Collected power cells and your unlocked robot face are stored locally to remember your game progress. You can remove this website’s stored data through your browser settings.

Purpose and your choices

We use essential session and game data to provide the service you request, and security checks to protect the shared room against abuse. Remembering your name uses your optional consent.

You can ask for access, correction, deletion or restriction of your personal data, object to processing based on legitimate interests, and request portability where applicable. You may complain to your local data protection authority. Public blockchain records remain on the blockchain, and another visitor may have copied a public message before its removal.

If you enter VR, your browser may additionally fetch controller and hand models from the XR library’s external asset providers.