Batman: Arkham Asylum is a 3rd-person action game powered by the Unreal Engine 3, that exposes players to a unique, dark and atmospheric adventure that takes them to the depths of Arkham Asylum – Gotham's psychiatric hospital for the criminally insane. BAtman:AA having
sold more than 2.5 million copies, Rocksteady's Sefton Hill stated
in a recent interview that "there are definitely lots of exciting stories to tell in Batman's world, and I can say that we’re really privileged to work on it, and excited about future possibilities."