In my mind, Crysis is one of the most underrated first person shooters that I know of.
Released in 2007, the first Crysis went virtually unnoticed against such competition as Halo 3, Call of Duty 4 and Gears of War. It was a treasure waiting to be excavated by gamers like myself.
The protagonist was a member of a special unit of highly-trained soldiers wearing experimental “nanosuits” like the one shown above. The nanosuit offer a range of special abilities to be activated in-game, including super-speed, super-strength, a cloaking device, and armour-plating which added a refreshing new dynamic to the old “Supersoldier kills hordes of aliens” trope made popular by Halo.
Your unit in Crysis was sent to a remote island to fight a North Korean threat. The short version of the story is that the North Koreans in Crysis woke an ancient, hibernating alien race beneath the earth. Picking up where the first Crysis left off, Crysis 2 began with an alien plague that had wiped out much of Manhattan’s population and brought the city under marshal law. A new main character found himself in command of one of the aforementioned nanosuits, and the fate of New York City (and by extension, the world) rested on his shoulders as the Big Apple found itself being invaded by the alien threat unleashed in the first game: called The Ceph. He defeats the Ceph hivemind, and the world is saved…until now.