Today we are only launching the PC vesion. The Linux and Mac versions will be available soon. We just need to port the launcher to OSX and Linux and run some tests.
Is there any help you need with getting Linux version ready?? (don't have a Mac so I can't help there)
Anyway, personal disappointment aside, many kudos for sticking with it and releasing the game after 10 years hard work
(and what the hell, may as well download the PC version and see if wine will give me any joy)