SCUM, a survival game from Gamepires, Croteam and Devolver Digital that was previously confirmed to eventually come to Linux is still planned.
They never gave a date for the Linux release and they still aren't, but the good news is that it still seems to be in their minds. Writing on Steam, a developer kept it short and sweet by saying "Its not to far" in reply to my comment about hoping the Linux version isn't far off. Not exactly much to go by, but it's fantastic to know it's coming as I love survival games like this.
It seems very different to games like Rust and 7 Days to Die, with a heavy emphasis on character customization, control and progression. Apart from the usual survival mode, it also includes traditional gameplay modes like Deathmatch, Team Deathmatch along with NPCs to come across, “realistic” bullet physics, animal tracking and hunting, vehicles and more.
It’s currently in Early Access and there’s plenty of reviews talking about the roughness of it, but there’s plenty of others that see a lot of promise in it. Either way, I shall take a look when Linux support is out.
You can follow/wishlist SCUM on Steam.