The game was released on the 25th August, 2009 for both PlayStation 3 and Xbox 360. It is an action-adventure game and is based on the DC Comics. Batman: Arkham Asylum was developed by Rocksteady Steadies in the UK. The game involves Joker and his efforts to create an arm to threaten the Gotham city. Of that, Batman soon learns. It earned an average of 92% on GameRankings and is highly critically acclaimed. The game can also be played in 3D, which I think is absolutely awesome.