Seems a pretty good price. Next cheapest i can see is £14.95 @ MyMemoey.
Halo 3: ODST sees you take on the role of The Rookie, the newest recruit to humanity's elite fighting force, the Orbital Drop Shock Troopers.
Explore the ruins of the devastated New Mombassa, location of the Covenant's incursions in Halo 3.
Employ stealth, cunning and high-powered weaponry in order to uncover its secrets and drive the vicious alien forces off humanity's homeworld.
Includes every Halo 3 Multiplayer map.
For ages 16 years and over.