Best Games by Popularity: O

Oil Rush is a real-time strategy game based on group control. Read the Review

Omerta - City of Gangsters is a simulation game with tactical turn-based combat where players take the role of a fresh-from-the-boat immigrant with dreams of the big life who must work his way up the criminal hierachy of 1920's Atlantic City. Read the Review

Ocean City Racing is an open-world indie driving game powered by the Unreal Engine 3 featuring the biggest, most detailed open-world environment, advanced driving physics, and high-quality visuals.

Of Orcs and Men is a role-playing game that places players in the role of an elite Orc soldier. Read the Review

The Orange Box includes the original Half Life 2, Episodes One and Two, Team Fortress 2, and an additional single-player game called Portal. Read the Review

Abe's is the ideal platformer, balancing its action and puzzle elements perfectly to make the game intelligent, engaging, and, best yet, fun. Read the Review

Orcs Must Die! 2 is an action strategy game from Robot Entertainment. Read the Review

Overlord II is the sequel to the original fantasy action adventure game. Read the Review

Adventure gaming in a twisted fantasy world where players have the choice to be evil... or really evil. Read the Review

Just when it seemed as if first-person shooters had run out of ideas, along comes No One Lives Forever to reinvigorate the genre. Read the Review

This sequel to Codemasters' popular Cold War-themed shooter takes place in a modern setting in which tensions are high between China and Russia.

From the opening level, you'll know you're in for a movie-worthy experience. Read the Review

The setting is perfect shooter material, and Operation Flashpoint does justice to it with complex gameplay coupled with a huge and truly memorable gameworld. Read the Review