Deus Ex: Human Revolution is the third game in the Deus Ex first-person role-playing video game series, and a prequel to the original game. The game takes place during the year 2027, 25 years before Deus Ex. Nanotechnological augmentations have yet to be developed and biomechanical augmentations are the current state of the art.
The main protagonist, Adam Jensen, is a private security officer with Sarif Industries, a leading company that specializes in human augmentations. After he witnesses a chilling attack on his company which leaves him horrifically injured and forced to undergo augmentation to survive, "the conspiracy begins."