A mysterious and unstoppable force threatens the galaxy, the Master Chief is missing and his loyalty questioned. Experience the most dramatic Halo story to date in a 4-player cooperative epic that spans three worlds. Challenge friends and rivals in new multiplayer modes: Warzone, massive 24-player battles, and Arena, pure 4-vs-4 competitive combat.**Online multiplayer features require Xbox Live Gold membership (sold separately).

A City teetering on the edge of a bloody revolution. An oppressive regime subsisting on the rising tide of fear. An extraordinarily skilled thief lies in the shadows during this uncertain and troubled time, thwarting even the most cautious citizens out of their best-guarded possessions. But as the uprising, led by Orion, voice-of-the-people, begins to emerge, Master Thief Garrett finds himself entangled in the ever-tightening knot of conflict. The Baron's Watch refuses to ease their stringent regime, and Garrett's abilities may be the only thing that will prevent the streets from running red with the blood of the people. Will you redefine your role as Thief to save the City from a devastating fate?Slip into the silent shoes of the dark and solitary Master Thief and sneak through the City unnoticed and unsanctioned. Unmatched stealth skills make child's play out of the most challenging heists and place the most inaccessible loots within your reach as you infiltrate luxurious mansions and relieve the residents of their valuables. Explore the sick and suffering City, from the shady back alleys to the highest rooftops, and decide what kind of thief you are. Whether you choose stealth or force, you are well-equipped to get the job done — choose force and leverage Garrett's arsenal and eliminate guards with your blackjack, or shoot one of the many arrow types. Choose stealth and manipulate your environment to outsmart your enemies with newly acquired focus abilities. Either way, you'll find yourself deeply immersed in the game's unprecedented sights, sounds and artificial intelligence, made possible by groundbreaking visual elements. Thief represents a truly tactile and visceral first-person experience and the amazing power of your next-generation console. The time has come to decide your role in the revolution.