11. Mass Effect
Platform: Xbox 360
US Release Year: 2007
Overall Rating: 4.2 out of 5 stars
Genres: Action (Third-Person Shooter), Role Playing (RPG) (Elements)
ESRB Rating: M
Developer: BioWare
Publisher: Microsoft Game Studios
Synopsis: In the year 2183, Commander Shepard is in charge of the SSV Normandy, and seeks to raise the status of humanity in the galaxy by becoming the first human SPECTRE special agent of the intergalactic ruling council. In order to do so, Shepard will have to confront a rogue SPECTRE agent and a race of mechanical beings leading to a revelation about The Reapers, a long-dormant race spoke of as myth and legend, who threaten all life across the galaxy.
12. The Orange Box
Platform: Xbox 360
US Release Year: 2007
Overall Rating: 3.8 out of 5 stars
Genres: Action (First-Person Shooter), Compilation
ESRB Rating: M
Developer: Valve Corporation
Publisher: Valve Corporation
13. Red Dead Redemption
Platform: Xbox 360
US Release Year: 2010
Overall Rating: 4.4 out of 5 stars
Genres: Action (Sandbox)
ESRB Rating: M
Developer: Rockstar Games
Publisher: Rockstar Games
Synopsis: At the turn of the century the Old West gives one last, final breath. Into this world steps former outlaw John Marston who has become a government pawn to track down his old gang in order to save his family.
14. The Elder Scrolls IV: Oblivion
Platform: Xbox 360
US Release Year: 2006
Overall Rating: 4.0 out of 5 stars
Genres: Action (Sandbox), Role Playing (RPG) (Elements)
ESRB Rating: M
Developer: Bethesda Softworks
Publisher: 2K
15. Left 4 Dead
Platform: Xbox 360
US Release Year: 2008
Overall Rating: 4.0 out of 5 stars
Genres: Action (First-Person Shooter, Survival Horror)
ESRB Rating: M
Developer: Certain Affinity
Publisher: Electronic Arts
Synopsis: A rabies-like virus dubbed "The Green Flu" is transforming the vast majority of the population into agile, zombie-like hordes. A group of four people find themselves immune to the disease and make a plan to escape to safe zone. In order to survive, they must work together and make their way through the masses of infected, along with some powerful, mutated enemies.
16. Halo: Combat Evolved Anniversary
Platform: Xbox 360
US Release Year: 2011
Overall Rating: 4.5 out of 5 stars
Genres: Action (First-Person Shooter)
ESRB Rating: M
Developer: 343 Industries
Publisher: Microsoft Game Studios
17. Red Dead Redemption: Undead Nightmare
Platform: Xbox 360
US Release Year: 2010
Overall Rating: 4.0 out of 5 stars
Genres: Action (Sandbox, Survival Horror)
ESRB Rating: M
Developer: Rockstar Games
Publisher: Rockstar Games
18. Beautiful Katamari
Platform: Xbox 360
US Release Year: 2007
Overall Rating: 4.0 out of 5 stars
Genres: Casual
ESRB Rating: E
Developer: Namco Bandai
Publisher: Namco Bandai
19. Fable II
Platform: Xbox 360
US Release Year: 2008
Overall Rating: 3.9 out of 5 stars
Genres: Action (Sandbox), Strategy (Simulation), Role Playing (RPG) (Elements)
ESRB Rating: M
Developer: Lionhead Studios
Publisher: Microsoft Game Studios
Synopsis: Set once again in the land of Albion, 500 years after the original Fable in a time of colonization, castles and firearms. Growing up in the slums of Bowerstone, Sparrow, along with his sister Rose, want more than anything to live in Castle Fairfax. A magic box seemingly grants their wish, but Lord Lucien has his own plans shooting Rose and Sparrow. Ten year later, Sparrow must find the three heroes and prevent Lord Lucian from rebuilding the Tattered Spire and gaining untold power. Once again, choose a righteous or evil path to reach your goal.
20. Call of Duty: Black Ops II
Platform: Xbox 360
US Release Year: 2012
Overall Rating: 4.5 out of 5 stars
Genres: Action (First-Person Shooter)
ESRB Rating: M
Developer: Treyarch
Publisher: Activision
Synopsis: Spanning years from the 1980s Cold War to a near-future scenario dominated by technology and weaponized mechs, Call of Duty: Black Ops II features both returning characters and new faces as players must navigate two distinct, playable time periods where their decisions will affect the outcome of the game.
