Thanks for the support! I did try making a Linux build with Unity, but my Ubuntu friends couldn't get it running properly. My schedule's already tightening, so for now I have to continue making the game on OSX and Windows. But I won't rule Linux out if, at the end of this process, I can get it to work on all three platforms.
That would be super. If you want to send me your Linux build, maybe I can help debugging (I'm a dev and used to Linux), no pressure though, I perfectly understand not wanting to add one more concern during the devving of the game. If you manage to get a Linux version working, I'd be grateful if you can ping me. Keep up the good work!