Raven Software is an American video game developer based in Madison, Wisconsin and a subsidiary of Activision. The company specializes in first-person shooters and action-adventure games. Before Activision acquired it in 1997, Raven Software was mostly known for their FPS games published by id Software; Heretic, Hexen: Beyond heretic and Hexen II. The games were mostly well-received and gained a strong following. After becoming an Activision subsidiary, Raven Software started mostly developing licensed games in such franchises as Star Track, Star Wars, X-Men the most popular of which were Marvel: Ultimate Alliance, Star Wars Jedi Knight II: Jedi Outcast, Star Wars Jedi Knight: Jedi Academy and X-Men Legends. Raven also created their original Soldier of Fortune series. In 2009 Raven Software made Wolfenstein, a long-awaited sequel to 2001 Return to Castle Wolfenstein. The next year the studio developed their original project – Singularity. Both games sold very poorly, which led Activision to make the studio a support developer for their flagship Call of Duty franchise. Raven worked on more than 10 entries in the series, but in only two of them, it was a primary developer: an exclusive Chinese Call of Duty online and a remaster of Call of Duty: Modern Warfare.