Earlier today PlayStation Stars was updated to include a new collectible exclusive to Diablo IV owners.
The collectible, Big Pineapple, is an amusing image of Lilith that is seemingly behind a flesh screen that is revealed to be a pineapple with umbrellas when the collectible is rotated.
Interestingly, while this is not the first collectible offered for playing a specific game, the Star Wars Jedi: Survivor collectible was a higher rarity.
Those interested will have 107 days to complete the task of simply playing Diablo IV. This means you should be able to get it without actually purchasing Diablo IV provided someone loans you a copy, or simply boots it on your behalf.