I wrote about Earth Liberation [Official Site] recently, as it was one of my random discoveries on itch. It's now on Steam and the developers have confirmed it will come to Linux during Early Access.
I followed it up with a post on Steam now it's available and the developer said this:
QuoteYes indeed, Linux support will be added to Earth Liberation during Early Access. We will update the community once we have the exact timing expectations.
As a massive RTS fan, this has me really excited.
About the game (Official)
In a nutshell, Earth Liberation is a short sessioned highly intense RTS, fast-paced with an old-school taste. The focus is on combat rather than on base development or complex economy. The game challenges skilled players without introducing new brain twisting mechanics into the genre. As a Commander of the Resistance, you have to cut through a series of fierce close quarter battles. In Earth Liberation hell drops on you instantly - and your only keys to victory are tactics and rapid decision making.