I would like to have the user be able to play my game from multiple devices without losing their inventory/in game cash. For this, it seems that I will need to use my own/a third party game server.
I have played games that have this functionality, yet they only require the player to login to their apple account (I.E., there is no second login for the game studio).
I am curious if anyone knows how you would handle this type of scenario. Essentially you would need to have some information that was consistent with the users account (and not their device) being returned to the server, yet I cannot find any method by which to use the apple id for my own purposes.
Is there perhaps something returned in apples store receipts? Has anyone else had any experience with this?
Thanks