Half-Life: Decay is a multiplayer-only expansion pack for Valve's first-person shooter Half-Life. Developed by Gearbox Software and published by Sierra On-Line, 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 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 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.
Decay was not a critical success, but was received with some positivity by video game journalists. Many reviewers felt the game was fun to play through with a friend, but that its more puzzle-oriented gameplay somewhat detracted from the overall experience. A number of reviews stated that the game simply felt like little more than an extra add-on for the PlayStation 2 version of Half-Life.
As is the case with the other games in the Half-Life series, Decay is a first-person shooter. Like the original title it is based on, Decay requires players to engage in combat with hostile non-player characters and complete various puzzle solving tasks to advance through the game. However, Decay differs from Half-Life and its first two expansion packs, Opposing Force and Blue Shift, in that it is designed for cooperative multiplayer gameplay. This requires players to work together to progress through the game's levels and complete puzzles as they arise in-game. Although intended to be played by two people in split screen mode, Decay can still be played by a single player. In this case, the player can only control one character at a time, and can switch between the two characters quickly. When not in use, a character has sufficient artificial intelligence to defend themselves, but otherwise does not move from where they have been left by the player.
Screenshots from the game Half-Life: Decay
System requirements Half-Life: Decay for Mac Os:
- Core Duo 1.6 Intel X3100