Should be publishing Kind 30762 which are signed by Space Zappers nsec. We publish to a set of game relays plus the players NIP-05 relays (if specified).
Discussion
Assume that means you can pick it up. Are you doing anything fancy to get apps listed or manually adding?
Boom!
Will add you as a 'recognized' game now. We need to improve the NIP to make that automatic and permissionless.