Star Wars: Knights of the Old Republic (KotOR) is a single player, role-playing video which was developed by BioWare and later published by LucasArts. It was released for Xbox on the 15th of July 2003, it was later released for Microsoft Windows on November the 19th 2003 and on September 7th 2004 for it was finally released Mac OS X. The Xbox version is playable on Xbox 360.
The story to this is very different to any Star wars film or game ever played. The story of KotOR takes place 4,000 years before the rise of the Galactic Empire which is where the films take place. Ex-Jedi Darth Malak, a Dark Lord of the Sith empire and Darth Revan's former apprentice, has unleashed a Sith armada against the Republic. Malak's aggression has left the Jedi scattered and vulnerable; many Jedi Knights have fallen in battle and others have sworn allegiance to Malak and Revan. The story is taken from the booklet inside of the game box (not written by me all credits go to the writers).