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2001 · Gearbox Software · Valve · Sierra Entertainment
Platform · Puzzle · Shooter · Co-operative, Split screen · ESRB M
Half-Life: Decay is an expansion pack for Valve Software's science fiction, first-person shooter video game Half-Life. Developed by Gearbox Software and published by Sierra Entertainment, Decay was released as part of the PlayStation 2 version of Half-Life. It is the third expansion pack for Half-Life, and like its predecessors, Decay returns to the setting and timeline of the original story, albeit portraying the story from the viewpoint of a different set of protagonists: two scientists working in the Black Mesa Research Facility. Decay is a cooperative multiplayer game, designed to be played by two people working together to pass through the game's levels.
The typical time comes from the diary. Per category, it is the median time reported by people who finished it and, without enough answers, the diary time.
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