is a prequel to the original Deus Ex which was released in June, 2000. It follows Sarif Industries security officer Adam Jensen after an attack on his firm. Severely injured, Jensen is kept alive through controversial human augmentation.
Set in the sprawling neonscape of 2027 Detroit, Deus Ex: Human Revolution gives you control of Jensen as he works to understand the conspiracies that surround him. Human Revolution fuses traditional first-person shooting with role-playing mechanics, giving you the ability to customize Jensen's abilities and tackle conflicts in the way that suits you. If you want to avoid combat all together, you can sneak your way through the battlefield. If you want to take control of the enemy's sentry turrets, you can hack into them. The choice is yours.
Because Adam Jensen has a variety of powerful abilities at his disposal, including cloaking, enhanced strength, and more, his actions are governed by a power gauge. The gauge is split into multiple segments that recharge automatically when Jensen remains neutral. If you deplete an entire segment, you'll have to recharge that segment later, forcing you to be careful of overusing Jensen's abilities.