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.
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.
For those after more retro-inspired ARPG experiences, the Zelda-like game Hazelnut Bastille has managed to smash through the funding goal on Kickstarter.
Epicinium from developer A Bunch of Hacks has hit Kickstarter. It's an interesting strategy game, one where nature is a finite resource you must try to not destroy during your war.
This looks absolutely fantastic! Sluggish Morss: Pattern Circus is a non-linear claymation dark sci-fantasy adventure on Kickstarter and it will support Linux.
For those times when you gotta catch 'em all, Monster Sanctuary is hoping to win over gamers with the interesting setting while crowdfunding on Kickstarter. They've also recently announced Linux support.
Epicinium is an interesting strategy game with simultaneous turns where your impact on the environment matters. The developers have announce it will be heading to Kickstarter as well as having an open source release.
While not usually a fan of many Visual Novels, Red Embrace: Hollywood really does sound quite interesting. Set in 1996 in Los Angeles, you are a newly created Vampire who has to find their place in the world.
As sad as it is, I appreciate it when we see a developer being really honest. Limit Theory was a promising open-world space sim that was Kickstarted back in 2012 and the developer has reached their limit.