Devolver Digital is working on a Shadow Warrior remake and due to a recent promo glitch some people got the original Shadow Warrior for free. Because of this they decided to make the original totally free on Steam. If you haven't played this 1997 classic and want to, now is your chance.

Available for free download on Mac and PC.

http://store.steampowered.com/app/238070/
https://twitter.com/_ShadowWarrior/status/339752731780726784