Star Wars: Knights of the Old Republic II has just been re-released on Steam. The Sith Lords is the second chapter in this particular branch of the Star Wars universe, and although Obsidian Entertainment handled development for this sequel, the original was a Bioware game.
Despite not quite living up the high standards set by the first foray into The Old Republic, this is still an accomplished game, and for just £6.99, it's an absolute bargain. Head to Steam for more details.