Crysis is a first-person shooter video game series developed by German developer Crytek and published by Electronic Arts. The series revolves around a group of military protagonists with “nanosuits”, technologically advanced suits of armor that allow them to gain enhanced physical strength, speed, defense, and cloaking abilities. The protagonists face off against hostile North Korean soldiers, heavily armed mercenaries, and a race of technologically advanced aliens known as the Ceph, who arrived on Earth millions of years ago for unclear reasons, and have recently been awakened.