Obsidian Entertainment is an American video game developer whose corporate headquarters is located in Irvine, California.Although they have created original intellectual property, many of their games are sequels based on licensed properties. Early projects include Star Wars: Knights of the Old Republic II: The Sith Lords and Neverwinter Nights 2, both sequels to BioWare-developed games. The team then developed their first original game, Alpha Protocol, in 2010. It was met with generally mixed reviews. Other notable works from Obsidian include Fallout: New Vegas, Dungeon Siege III, and South Park: The Stick of Truth, all also licensed properties.The company's latest games are Tyranny, a role-playing game set in a world where the war between good and evil has been fought with evil coming out on top, and Armored Warfare, a massively multiplayer online game with a focus on controlling tanks.