Devolver and Flying Wild Hog's Shadow Warrior is free on Steam until 6pm UK time (BST) today.
UPDATE: It looks as if the original Shadow Warrior has been free on Steam since 2013, when publisher Devolver released an updated version of the 1997 adventure called Shadow Warrior Classic Redux. This Complete Edition has been free on GOG since September.
UPDATE 11/06/2015 4.49pm: Shadow Warrior 2 is confirmed for PS4, Xbox One and PC, publisher Devolver Digital has announced.
It will also have four-player co-op.
Here's the first trailer for Flying Wild Hog's upcoming urban ninja fantasy.
UPDATE 28/08/14 13:58 The console version of Shadow Warrior has been delayed.
Shadow Warrior publisher Devolver Digital has teamed up with Viscera Cleanup Detail developer RuneStorm to bring us the amazing crossover Viscera Cleanup Detail: Shadow Warrior.
Flying Wild Hog's new Shadow Warrior reboot has added Saints Row 4's giant purple dildo, the Penetrator, to its arsenal.
The Shadow Warrior reboot is coming to PC on 26th September via Steam, GOG, Humble Store, and Get Games, publisher Devolver Digital has announced in its latest gruesome trailer.
The Shadow Warrior remake from Hard Reset dev Flying Wild Hog will release on PC via Steam and other digital services this year and on next-gen consoles in 2014.
Hard Reset developer Flying Wild Hog is developing a new Shadow Warrior game with Hotline Miami publisher Devolver Digital.
Little is known about the project, but according to its official Facebook page, Flying Wild Hog calls it "a total reimagining of Shadow Warrior," suggesting it's a remake rather than a sequel.
The original Shadow Warrior was a 1997 first-person PC shooter by Duke Nukem 3D developer 3D Realms. No platforms have been announced for the reboot, but given that both the original Shadow Warrior and Flying Wild Hog's previous outing, Hard Reset, were both PC-exclusives, one could postulate that this will be on PC, too. It's unclear if it will come to consoles, though.