Shadow Complex is a 2009 platform-adventure video game developed by Chair Entertainment in association with Epic Games (using its Unreal Engine 3) and published by Microsoft Game Studios for the Xbox Live Arcade. The game was released worldwide on August 19, 2009. The original script of Shadow Complex was written by comic book writer and Star Trek novelist Peter David. The game follows Jason Flemming and his new girlfriend Claire, who opts to explore some caverns the two stumble across. When she does not respond to his calls, Jason follows her. He finds a massive underground complex with soldiers and high-end technology. Jason must rescue Claire and discover the plot behind the faction operating the complex.Shadow Complex 's reception has been very positive. It has received and been nominated for several Game of the Year and Editor's Choice Awards. Critics praised the gameplay, narrative and graphics, with several reviewers also stating that its 1200 Microsoft Points price was a bargain. It also broke all sales records for Xbox Live Arcade titles, selling over 200,000 units within the first week of release and as of year-end 2011, has sold over 600,000 copies.