Best Games by Popularity: O

This package deal contains Half Life 2, and HL2: Episodes 1 & 2, as well as Team Fortress 2 and Portal. Read the Review

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

Oneechanbara vorteX is an action game for the Xbox 360 from D3. Read the Review

Outland puts players in the middle of a world of balance and chaos where their efforts allow them to bridge the ancient divide, or doom the world to destruction. Read the Review

Operation Darkness is a turn-based tactical strategy game set in a fantastical take on World War II. Read the Review

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

Prepare for brutal battle as you join the war in Tajikistan in Operation Flashpoint: Red River. Read the Review

Set in Europe during WWII, The Outfit is a squad-based action game that pits your team against the Nazi War Machine. Read the Review

Take to the skies in Over G Fighters, an Xbox 360 game developed by Taito. Read the Review

Outpost Kaloki X lets you try your hand at running an intergalactic shopping mall in what's a pretty well-designed, fast-paced little 3D tycoon-style strategy game. Read the Review

Open Season is based on the Sony Pictures Animation's CG animated film of the same name, where a rowdy brood of forest animals turn the tables on a bunch of unsuspecting hunters. 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. Read the Review

This scrolling shooter will have enemies attacking you from all angles, so look sharp. Read the Review