Starsector (formerly "Starfarer") is a game that I've followed for quite a few years now, one I personally purchased many years ago and the latest release is a big one.
Squally is what they're calling a 2D puzzle RPG, which is supposed to teach you "video game hacking" without needing prior experience and no "boring lessons".
You're a wizard harry! Spellcaster University, currently on Kickstarter is a management game where you will be tasked with building a university of mages.
Lore Finder, a cosmic horror metroidvania from developer Kitsune Games that certainly sounds unique. You take on the role of K.C. Morgan, a paranormal investigator and search a New England mansion for your missing father.
A Kickstarter that was fully funded we completely missed, UnDungeon is a pixelart action RPG that has a dynamic fighting system and it's heading to Linux.
For those after their next RPG fix, ATOM RPG is certainly going to be an interesting game for you to take notice of. While it's currently in Early Access, the full release is now scheduled for next month.
Monster Sanctuary, a rather interesting monster taming metroidvania that has a Linux demo has smashed through more stretch goals on Kickstarter and it's exciting.
As an update to the previous article where 11 bit studios told me they didn't have the resources for Linux, turns out they will be putting the latest This War of Mine DLC on Linux after-all.