Crysis 2 is a science-fiction first-person shooter set in 2023 New York City, 3 years after the events of the first Crysis. Players take the role of "Alcatraz," a Force Recon Marine who receives an upgraded, hi-tech "nanosuit" which greatly increases his abilities by permanently merging with his body. Throughout the single player campaign, Alcatraz must fight the Ceph alien invasion while being hunted by CryNet Systems, the creator of the Nanosuit. The Nanosuit provides several modes which may be used simultaneously, including regenerative healing, cloaking stealth, and vision enhancement. Crysis 2 is the first game to use the CryEngine 3, which allowed for an improvement in graphics while requiring less power to run than Crysis.