In July 2003, Mad Doc Software announced that they were working with Gas Powered Games and Microsoft Game Studios on an expansion pack for "Dungeon Siege" (2002). Titled "", the expansion was co-developed with Gas Powered Games to expand on the original game, with its story starting at "Dungeon Siege" ending. Davis stated that Mad Doc Software was chosen as the expansion's developer because Gas Powered Games was impressed with the talent present at the studio, and how well the studio's previous titles had been received. The team aimed at improving on the original concept of the game by adding a more open world, giving the player more direct control of their actions, and developing a great story for players of the original "Dungeon Siege". The game was released in November 2003, and, like "The Art of Conquest", saw mixed reception. Giving it a score of 7.0/10, Dan Adams of IGN stated that the game was perfectly suited for fans of the original game, even if it failed to be a remarkable game when seen from the view of a journalist. An untitled bonus pack, which followed up on the events of "Legends of Aranna", was released as freeware by Mad Doc Software, in September 2004. The "Dungeon Siege" intellectual property, including "Legends of Aranna" and its free bonus pack, was acquired by 2K Games in March 2006.