Batman: Arkham Origins
Batman: Arkham Origins is an underrated game. Developed by WB Montreal rather than Rocksteady, it acted as a stop gap between the second game in the series and 2015’s Arkham Knight. It may not have much original content but it is certainly a great Batman vs Joker story.
Arkham Origins’ multiplayer has two game modes, Invisible Predator Online and Hunter, Hunted. Both feature gangs of Joker or Bane thugs fighting each other or completing objectives whilst Batman and Robin try to stop them.
There are only two, simple game modes that only feature six playable characters. You can customize your thugs in cosmetic ways, and the leveling up system unlocks weapons just as in any other online shooter. The multiplayer is shallow and boring, no wonder Rocksteady chose not to include it in Arkham Knight.