Arkham City may improve on this game in every way but this game started it all (and improved and everything that was already out there). Asylum reinvented the world of tie in games (those based on books, films and other well known franchises). Rather than cash in of Batman's popuarlity this game set to take Batman and his world and bring it to life... and make a truly amazing game in the process. The story is first class, the voice acting is straight out of the animated series (Conroy and Hamill are incredible). Whether is riddles, side quests, main story, challenges, gadgets and more this game is a Batman/Adventure/Gaming fans dream... and the first game I loved enough to get every achievement. An xbox classic in every sense of the word.