Thanks for the report! I don't have much experience with Linux, but I'll try to help however I can.
Could you tell me:
- Which Linux distribution are you using (Ubuntu, Mint, Arch, etc.)?
- What happens when you run the (.sh) file from a terminal? If you get an error message, could you paste it here?
Also, I'm planning to release an update later this week. If this turns out to be an issue with the game, I'll do my best to fix it in that update!