Batman: Arkham Asylum “Insane Night” DLC will give players two new challenge maps, “Totally Insane” and “Nocturnal Predator”. Totally Insane is a FreeFlow combat map where Batman will be forced to take down hordes of Arkham inmates as they try to escape through the secure records room. Nocturnal Predator is an Invisible Hunter map in which players use stealth mode to take out one of Joker’s toughest armies.

Insane Night is free and will be available to download on Thurs. September 17th for all platforms (PS3, Xbox 360, PC). The second announced DLC, Prey of Darkness, will be available on September 24th, with no more details as of this moment.