Hard Reset Redux is a beautiful looking FPS game from Flying Wild Hog and Gambitious Digital Entertainment that is now showing signs of coming to Linux/SteamOS.
Taken from SteamDB:
There is no Linux content depot yet by the looks of it, Linux is also not in the "oslist" or anything else. It's very little to go on right now, so I really don't suggest buying it. The usual rule applies: don't buy it until it's actually officially out.
About the game (Official)
The acclaimed First-Person Shooter returns fully upgraded, and more beautifully challenging than ever. Hard Reset Redux is a brand new version of the cyberpunk classic that includes all the content of previous editions, and adds new improved gameplay, enhanced visuals and additional content to make this the Definitive Edition of Hard Reset.
Hard Reset Redux is an action-packed and hardcore single-player shooter which embraces the best qualities that the genre has it offer. It includes over-the-top destruction, loads of enemies, great weapon variety, a challenging campaign and a beautifully realized cyberpunk setting. Having been originally developed to shake-up the shooter scene on PC, Hard Reset now returns to do it again on a new generation of hardware.