DayZ

The biggest piece of shit I've ever had the misfortune of paying for through the Playstation store

Got a little fun out of it playing with some friends, but was a bit mechanically limited.

Infuriating difficulty leads to a feeling of great success if you can manage to get a handle on the game mechanics. The difficult nature of the game, along with the scarcity of other players in the world, leads to some of the most interesting multiplayer interactions I've ever had. Adrenaline pumping pvp, the relief of finding a friendly soul out in the world, and the overwhelming accomplishment of conquering survival make it easy to overlook negative aspects of the game.