Arkhem - an area where rampant released from a psychiatric clinic and to their own mad, inveterate criminals and maniacs. This is a black spot in the heart of Gotham City, separated from the surrounding city impregnable wall. And as you know, where the evil - and there Batman! In Arkheme legendary man-bat to meet many famous heroes and villains, and players will be felt, what it is - to be the Dark Knight.