Eidos has announced that the demo for Batman: Arkham Asylum will release this week Friday, August 7. The demo will be available on PS3, Xbox 360 and PC game platforms. The game demo is set to feature the introduction of the game, in which Batman and Commissioner Gordon attempt to return the the sociopath who is the Joker to Arkham Asylum, only to have the villain turn Batman into an unwilling new inmate at the extremely dangerously prison. The demo will also allow players to unlock character bios and “get a sneak peak at some of the infamous foes that Batman will encounter within the cavernous and macabre confines of Arkham Asylum.”

Batman: Arkham Asylum is set to hit store shelves in North America and Europe on August 25 and August 28.

[Via Joystiq]