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Half-Life: Opposing Force Deals | Cheapest Prices | PlayinGG

Half-Life: Opposing Force

Half-Life: Opposing Force

November 1, 1999

Half-Life: Opposing Force

Half-Life: Opposing Force

Genres

Shooter , Platform

Gamelist Stats

On1Gamelists

Developer

Gearbox Software

Publisher

Valve Corporation , Sierra

Platforms

PC (Win), PC (Mac)

Gamemodes

Singleplayer , Multiplayer

Launcher

Steam