Batman: Arkham Asylum is a 2009 action-adventure game developed by Rocksteady Studios and published by Eidos Interactive in conjunction with Warner Bros. Interactive Entertainment. Based on the DC Comics superhero Batman and written by veteran Batman writer Paul Dini, Arkham Asylum was inspired by the long-running comic book mythos. In the game's main storyline, Batman battles his archenemy, the Joker, who instigates an elaborate plot to seize control of Arkham Asylum, trap Batman inside with many of his incarcerated foes, and threaten Gotham City with hidden bombs.

Paul McClaran Dini is an American screenwriter and comic creator. He has been a producer and writer for several Warner Bros. Animation/DC Comics animated series, most notably Batman: The Animated Series (1992–1995), and the subsequent DC Animated Universe. Dini and Bruce Timm co-created the characters Harley Quinn and Terry McGinnis.