Margin Call has no user accounts, no registration and no login, and it does not ask for or store your name, email address or any other personal detail. Your game state is saved locally in your browser using IndexedDB and is never sent to any server — clearing site data deletes it permanently, and there is no copy anywhere else.
The game itself sets no cookies: your theme choice and interface preferences are kept in localStorage on your device. The analytics described below do set cookies — Google Analytics sets its own identifiers on first load. If you block cookies, everything in the game continues to work.
We use Google Analytics and Vercel Analytics to understand aggregate traffic — page views, rough geographic region, device type and referrer. This is tracking, in the ordinary sense of the word, and it happens on every page. What it is not is gameplay tracking: no trade, position, score, save file or in-game decision is ever sent to either service, and neither is given a name, an email address or any other identifier you have supplied. To opt out entirely, use a browser or extension that blocks Google Analytics; the game is fully playable with it blocked.
The daily-challenge board is optional. If you submit a run, your chosen display name, score, and optional one-line hot take are stored on Supabase. No email, account, or other personal data is required or collected.
The contact form sends your message directly to FormSubmit.co, which delivers it to our email. We do not store contact form submissions beyond the delivered email.
Margin Call uses: Vercel (hosting), Supabase (daily challenges), Google Analytics (traffic), FormSubmit.co (contact form), Sentry (error monitoring). Each service has its own privacy policy.
Questions about this policy: ask@margincall.io