The completed version of Blacklight: Retribution, the free-to-play PC-only follow-up to 2010 console FPS Blacklight: Tango Down, is available now, publisher Perfect World has announced.
The game, developed by Zombie Studios on Unreal Engine 3 and optimised for DirectX 11, can be downloaded from the official website.
A beta has been underway for a number of months now, in which Perfect World claim participants from 40 different countries racked up 13 million kills.
Two new game modes - Netwar and Siege - are expected to become available any day now.
Its more modestly scaled predecessor failed to impress critics when it launched a couple of years ago.
"With a few patches and some better maps, it could be an adequate diversion, but the world simply doesn't need another passable multiplayer shooter whose only selling point is how little it costs compared to 'real' games," read Eurogamer's 5/10 Blacklight: Tango Down review.