Blacklight: Retribution publisher Perfect World Entertainment launched the game's Onslaught expansion today, an update that adds a new co-op mode and a wealth of associated content to the free-to-play first-person shooter.
Retribution launched in open beta exactly one year ago today.
The Onslaught mode pits a team of up to four Blacklight agents against waves of the zombie horde; it's the game's first player-versus-environment setup. Onslaught also brings in three other modes: Search and Destroy, a bomb-defusal gametype for two teams, as well as Last Man Standing and Last Team Standing.
Onslaught mode games take place on the new Centre map; the expansion also adds two more maps to Retribution, Safehold and Metro. New weapons also come with Onslaught, with the Silver Crowbar melee weapon available exclusively to Steam players.
As of today, Blacklight: Retribution has also been localized for Turkey and is now available to play there. Check out the Onslaught launch trailer above.