Scourge: Outbreak is an overhauled version of the 2010 PC game The Scourge Project: Episodes 1 and 2 with updated graphics, gameplay, story elements and new features. Players assume the role of Echo Squad, an elite group of veteran mercenaries hired by The Tarn Initiative, as they fight to bring down Nogari Corporation by penetrating their island defenses and stealing a critical piece of evidence that will be Nogari's downfall; a fragment of a secret meteorite containing non-terrestrial DNA that Nogari has been using as the basis for their powerful technology.
Players can choose any of the four playable members of Echo Squad, each with their own hidden agenda and character-specific flashbacks, revealed throughout the game. The entire campaign can be played either in single-player or in co-op with up to three friends, or against other players online in 8-player PvP modes such as Deathmatch, Team Deathmatch and Capture the Flag. By playing experience is gained that can be spent in four different categories and unlock gameplay perks that enhance the playing style.