We now have a Linux version available for those who want it! Additionally, if you have downloaded the game from the Itch App and want to get automatic updates when new versions come out, make sure you check for the updates manually this first time and specify which version you want. The reason for this is complicated, but basically, the way the first builds were uploaded is not the way the current and future ones are/will be. 

I hope you're enjoying Horzasha and telling your friends! The game will launch on Steam near the end of the month.