Deus Ex: Human Revolution follows the successful Deus EX and Deus Ex: Invisible War as the third installment in the sci-fi action series. When a scientist is killed by special forces, Adam is hired to act as a bodyguard for one of America's most experimental biotech companies. But everything he thought he knew about his job has changed. In a time when scientific advances routinely transform athletes, soldiers, and spies into super-advanced beings, someone is trying very hard to keep humanity evolving in a very specific way. You must find out why - because the decisions you make and the choices you make will be the only ones who can determine the future of humanity.