Rocksteady Studios and Warner Bros. Interactive are getting ready to finally release Batman: Arkham City, the long awaited sequel to the critically acclaimed Batman: Arkham Asylum, and have now deployed the official launch trailer for the game. Batman and players from all around the world are getting ready to experience Arkham City, a wide open world filled with some of the most powerful enemies of The Dark Knight, including The Joker, Dr. Hugo Strange, The Riddler, Mr. Freeze, Two-Face and many, many more. He's aided by Catwoman, only if you bought the game new or paid for the $10 DLC, while Robin and Nightwing are also going to make an appearance. The game is set to be released this week, on October 18, in North America, and October 21, in Europe, for the PlayStation 3 and Xbox 360, while the PC version is expected on November 8, because of a slight delay announced last month. Before you can rush to stores and buy Arkham City, check out the launch trailer above highlighting the adventures awaiting the popular comic book character.