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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. Named 'Game of the Year' by the Academy of Interactive Arts and Sciences.
Overwhelmingly Positive (8045)
ACTION, ADVENTURE, FPS, PUZZLE, SCI FI, SHOOTER
It's a digital key that allows you to download Half-Life: Opposing Force directly to PC from the official Platforms.
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