Hitman 2: Silent Assassin is an action-adventure stealth video game developed by IO Interactive and published by Eidos Interactive. It is the second entry in the Hitman series and the sequel to Hitman: Codename 47. It was released for the Xbox game console on 30 September 2002, Microsoft Windows and PlayStation 2 versions of the game were released on 1 October 2002, and a GameCube version was later released on June 2003. The game was re-released for Windows through the Steam online distribution service. A commercial success, the game has sold more than 3.7 million copies as of 23 April 2009 and is the best selling Hitman game to date.