What is the best way to grant a download key to another user? If I can't send a private message, nor a mail, nor can grant a key directly to a user, then what is the recommended way?
I too would like to have this feature. For collaboration with other Devs. Like at the end of a jam, reach out to a fellow dev and ask to collab on a full version of a game.
(Necro, I know but its the first result on google so *shrugs*)