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Obsidian Entertainment is an American video game developer. Many of the company's original, as well as several modern, employees had worked on Fallout, Fallout 2, and Van Buren (the canceled Fallout 3 project).


Obsidian was founded in 2003 after the dissolution of Interplay Entertainment's Black Isle Studios. It continues to operate under management by its founding officers: Feargus Urquhart, Chris Parker, Darren Monahan, and Chris Jones. The company's first office was in Fergus Urquhart's attic before moving to an office park not too far away.

Bethesda Softworks announced on April 20, 2009, that a new game in the Fallout series, Fallout: New Vegas, was being developed by Obsidian. The game was released on October 19, 2010.

In 2018, the company was purchased by Microsoft, and it became a subsidiary of Microsoft's division, Xbox Game Studios.