Crysis is a science fiction first-person shooter computer game developed by German video game developer Crytek and published by Electronic Arts, and is the first game of a planned trilogy. It was released on November 13, 2007 in North America, November 15 in Australia, November 16 in Europe and November 23 in New Zealand. Well-received by critics, early NPD figures for the US market were taken as a sign that the game had flopped; however, EA has recently reported being happy with sales, reporting that the game has sold over 1.5 million copies worldwide. 
Crysis is based in a fictional future where an ancient alien spacecraft has been discovered beneath the Earth on an island near the coast of Korea. The single-player campaign has the player assume the role of United States Delta Force operator Jake Dunn, referred to in-game by his call sign, Nomad. Nomad is armed with various futuristic weapons and equipment, most notably a "Nano Muscle Suit" which, according to Crytek senior game designer Bernd Diemer, was inspired by the United States' Future Force Warrior 2020 program and other projects relating from the Natick Soldier Systems Center. In Crysis, the player fights both North Korean and extraterrestrial enemies, in four different locations: a tropical island jungle, inside an "Ice Sphere" (consisting of the same jungle, but frozen), the alien ship itself (with a zero-gravity area) and a United States Navy aircraft carrier. Crysis uses Microsoft's new API, Direct3D 10 (DirectX 10) for graphics rendering, and includes the same editor that was used by Crytek to create the game.