What this is

Shanghai is a social card game you play in a browser (or as a Home Screen web app). There are no accounts and no passwords — you join a table with a display name and a room code.

What we store

• Display name and seat info for the room you join (so the table can run).
• Game state for that room (hands, melds, scores, chat) until the room is gone.
• Table chat messages you send in a room.
• Career wins keyed by display name on the public leaderboard (humans only).
• Optional Discord invite URL if a host pastes one into table settings (we store the link; we do not operate Discord).

On your device

Your browser may keep a local session (room code, name, seat token) so you can resume a table, plus accessibility preferences (colorblind suits, larger cards). You can clear these by clearing site data in the browser.

Notifications

If you allow notifications, we may show turn / nudge alerts when the tab is in the background. We do not sell notification data. You can deny or revoke permission in system settings.

What we don’t do

No advertising trackers, no sale of personal data, no camera or microphone access from the game itself. Hosts may share an external voice link; that service has its own privacy policy.

Hosting

The site is typically hosted on Vercel with game data in Supabase (Postgres). Those providers process data as needed to run the service.

Contact

Questions about this policy: reach the operator of callshanghai.com.