Conarium, the first-person Lovecraftian horror inspired by Amnesia: The Dark Descent and In The Mountains of Madness, is now available on Mac and Linux in addition to PC. If you buy it on Steam it's also on sale for 55% off right now.
You can check out the game's Steam page here. If you buy Conarium on Steam you should have access to the Mac and Linux versions automatically. Developer Zoetrope have also added controller support, which is nice.
Full patch notes for Conarium v220.127.116.11 are below:
Conarium recently won Game of the Year and Best PC Game awards at the Kristal Piksel Video Game Awards 2017 ceremony in developer Zoetrope Interactive’s native Turkey. Following the game's success on PC, Zoetrope are hard at work on PS4 and Xbox One versions of the game, which should be out later in 2018.