Privacy
The public preview does not create a game account or award cards or credits. Test openings are not saved. Browser preferences may be stored on this device. Full web guest play at /marketsteam is separate and saves progress. The following information describes both versions.
The game server stores your Steam identity and app ownership, credit balance, connected play time, actions, collectibles, uploaded art, submission records and content reports.
A private first-party session cookie identifies your Steam account for up to 24 hours. Web guest play instead creates a random guest identity and stores a private session cookie for up to 90 days, renewed when you return. Guest game state is stored on the server; clearing the cookie loses access to that account. Guest sessions do not access your Steam identity or inventory. The game also stores local settings, unfinished drafts and pending actions so a retry does not repeat a purchase. Publisher credentials and native sign-in tickets are not exposed to other players.
Launched art, its title and its creator identity become visible to other players. Artwork is stored through Cloudflare Images. Steam processes sign-in, item publication, delivery and Steam transfers.
Contact support to report content or request access to or deletion of account data. Delivery and abuse-prevention records may need to be retained to prevent duplicate items and resolve disputes.