Obsidian Entertainment is an American role-playing video game developer founded in 2003 after the disestablishment of Interplay Productions' Black Isle Studios. Although it has created original IP, Obsidian has mostly developed sequels to existing games, and many of their games are based on licensed properties. Obsidian continues to operate under the management of its founding officers: Feargus Urquhart (CEO), Chris Parker (COO), Darren Monahan (CIO), Chris Avellone (CCO) and Chris Jones (CTO).
On April 20, 2009, Bethesda Softworks announced that a new game in the Fallout series, Fallout: New Vegas would be developed by Obsidian. It was released in October 2010. Of note is the fact that many Obsidian designers formerly belonged to Black Isle Studios, which produced Fallout and Fallout 2, as well as most of the series' lore.
Obsidian Entertainment revealed that they are pitching an unknown original IP to several publishers and are getting very good results.
 List of games
- Star Wars: Knights of the Old Republic II – The Sith Lords (2004)
- Neverwinter Nights 2 (2006)
- Neverwinter Nights 2: Mask of the Betrayer (2007)
- Neverwinter Nights 2: Storm of Zehir (2008)
- Alpha Protocol (2010)
- Fallout: New Vegas (2010)
- Dungeon Siege III (2011)
- South Park: The Stick of Truth (2013)
- Wasteland 2 (2013)
- The Wheel of Time (TBA)