You Linux build is x86 only, so anyone with a 64-bit arch can't play it (that's almost every linux user). I'd love to play the game, so I hope you can release a revised build for Linux.
After a long time (like 3 days), the linux x86_64 version of the game is release ! I hope it work well ! (I'm the developper of the game)
I hope you will enjoy this little moment of calm from this game, good play !