Warner Bros. Interactive Entertainment and DC Entertainment have announced Batman: Arkham City Game of the Year Edition, an extended version of Batman: Arkham City developed by Rocksteady Studios and scheduled for release in the UK on 7th September, for Xbox 360 and PS3.

With Batman: Arkham City Game of the Year Edition, fans can extend their experience as the Dark Knight with Harley Quinn’s Revenge, the final chapter in Batman: Arkham City that adds more than two hours of fresh gameplay. Also included on disc will be all five previously released downloadable content (DLC) packs. The Harley Quinn’s Revenge mission sends players back into Arkham City to face their final challenge as they interchange between playing as both Batman and Robin. Gamers must utilise each of the characters’ unique combat and investigative skills to uncover Harley’s vengeful plan and shut the gates on the urban mega-prison forever. In addition to a new storyline, fans can explore new environments and face-off against Harley’s all new gang of thugs.

Fans who already own an original boxed edition of Batman: Arkham City can experience the new gameplay by downloading the Harley Quinn’s Revenge Pack, which will be available in all international markets beginning May 30 via PlayStation Network and Xbox LIVE Marketplace.