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Half-Life: Opposing Force is an expansion pack for Valve’s science fiction first-person shooter video game Half-Life. The game was developed by Gearbox Software and Valve and published by Sierra On-Line on November 19, 1999. Opposing Force is the first expansion for Half-Life and was announced in April 1999.

Half-Life: Opposing Force - An Updated Review


Author by: GmanLives

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