Cosmic horror metroidvania 'Lore Finder' from Kitsune Games has recently passed the stretch-goal required to have Linux support at release.
Become K.C. Morgan, paranormal investigator, and search a New England mansion for your missing father. Battle the forces of corruption infesting the mansion armed only with your wits and an old .38 revolver, and gather scrolls of forbidden lore. But the more you discover, the more warped and twisted the world – and you – become.
With a base goal of $10K, the Linux (and Mac) version was placed into a $12K stretch-goal, so that Kitsune Games can account for any extra time needed to ensure the porting process is smooth. This includes hiring game porter Ethan Lee if they require it, as the game is using his FNA project. They explained it a little more here.
See more on Kickstarter.