Half-Life: Decay

Half-Life: Decay is a multiplayer expansion pack for Half-Life. Created by Gearbox Software and published by Sierra, Decay was released as part of the PlayStation 2 version of Half-Life in 2001. It is the third expansion pack for Half-Life, and like the other expansion packs, Decay returns to the setting and timeline of the original story and portrays the story from the perspective of a different set of protagonists: two female 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.

Category:2001 video games
Category:Cooperative video games
Category:First-person shooters
Category:Half-Life games
Category:PlayStation 2 games
Category:PlayStation 2-only games
Category:Science fiction video games
Category:Valve Corporation games
Category:Video game expansion packs
Category:Video games about alien invasions
Category:Video games developed in the United States
Category:Video games set in the United States