Tom Clancy's Splinter Cell: Double Agent is the name of two action-adventure stealth video games, developed and published by Ubisoft. The series, endorsed by American author Tom Clancy, follows the character Sam Fisher, an agent employed by a black-ops division of the National Security Agency, dubbed Third Echelon. Double Agent was released for the GameCube, PlayStation 2, Xbox and Xbox 360 in October 2006. The Wii and Microsoft Windows versions were released in November 2006. A PlayStation 3 version was released in March 2007. Originally the game was set for a March 2006 release, but Ubisoft moved the release date to October 2006 in order to have more development time. Ubisoft then released their fiscal quarter results for Q1 2006 and announced that Double Agent would be put back at least one month in order to boost Q3 2006 income.