Hitman is a stealth video game series developed by the Danish company IO Interactive. Previously published by Eidos Interactive, and currently published by Square Enix, the series is available on Microsoft Windows as well as several video game consoles, including the Xbox, PlayStation 2, GameCube, Xbox 360 and PlayStation 3. The game series has since expanded into a novel, written by William C. Dietz, followed by Hitman: Damnation which is an official prequel to the installment, , and a Hitman film adaptation in 2007, which is loosely based on the storyline of the games. The film was negatively received, but became a financial success.