Half-Life: Opposing Force is a single player shooter game for Mac. Return to the Black Mesa Research Facility as one of the military specialists assigned to eliminate Gordon Freeman. Experience an entirely new episode of single player action. Meet fierce alien opponents, and experiment with new weaponry.
Counter-Strike: Global Offensive features new maps, characters, and weapons.
Latest in the chart-topping series, bringing you colorful, bird-flinging action with a zero-gravity twist!
