Did you remove the Linux version entirely? I used to be able to play (I guess it was the demo version?) but now it shows up as Windows-only. I'd happily pay for the old demo version back; I love this game and play(ed) it on Linux frequently!
We nearly shipped linux but ran into some crash bugs due to some experimental shader work we did. Hopefully we'll be releasing linux support in an update.
that would be amazing. I love this game and hate the idea of losing it! Will buy many copies!