hl:d hld decay halflifedecay halflifedecayfanart
Expansion pack for the game [[Half-Life 1]], where you play as [[Colette Green]] and [[Gina Cross]] on the day of the resonance cascade. Unique to this expansion pack is co-op play- Requiring either a second player or for one player to use both controllers.

h4. See also
* [[Half-Life (series)|]]
* [[Half-Life: Blue Shift]]
* [[Half-life: Opposing Force]]

h4. External links
* Combine Overwiki: "Half-Life: Decay":[https://combineoverwiki.net/wiki/Half-Life:_Decay]
half-life: decay