Thanks to Ethan Lee and his FNA tools, Apotheon is now available for Mac and Linux!

Please post any issues with Mac and Linux in it's forum here:
http://steamcommunity.com/app/208750/discussions/3/

On another note - thanks to everyone who enjoyed the game, after four years of development we are extremely happy to see a response like this!
- Lee and Jesse

Mac System Requirements:
OS: Lion 10.7.5, Yosemite strongly recommended
Processor: Dual Core 2.5 GHz
Memory: 3 GB RAM
Graphics: OpenGL 3.0+ support (2.1 with ARB extensions acceptable)

Linux Requirements:
OS: glibc 2.15+, 32/64-bit. S3TC is NOT required.
Processor: Dual Core 2.5 GHz
Memory: 3 GB RAM
Graphics: OpenGL 3.0+ support (2.1 with ARB extensions acceptable)

FNA:
https://github.com/flibitijibibo/FNA