Developer Orangepixel is working on another new game in addition to the upcoming Gunslugs:Rogue Tactics. Space Grunts 2 will be combining turn-based gameplay with a card-based battle mechanic.
Certainly a fun sounding idea! Possession from developer Weirdfellows is a traditional turn-based roguelike, made on Linux and it just recently released.
Madit Entertainment are currently crowdfunding for their new Point & Click adventure game "The Hand of Glory", as it turns out they've confirmed Linux support too.
Here's a fun recent discovery, Songs of Syx an in-development title from Swedish developer Jakob de Laval. It's a city-builder with empire management, tactical battles and rpg-elements and it's looking good.
Love insects and other creepy crawlies? Hive Quest might be a game you will enjoy, one that's coming to Linux and it's now crowdfunding on Kickstarter.
Netherguild is a recent discovery that's currently in development from David Vinokurov. It's a turn-based rogue-lite strategy game, about sending a team deep below ground.
Three crowdfunding campaigns in one day? Yes! After Evan's Remains and Path of Titans getting funded, we also have the action-platformer "GIGABUSTER" which has also been fully funded and so it's coming to Linux.
Thanks to the help of nearly a thousand backers on Kickstarter, the very sweet looking puzzle-platform that mixes in some visual novel elements is fully funded.
Robo Instructus from Big AB Games, which is mainly a solo-operation, is a puzzle game where you need to guide a robot using a simple programming language.