Okay, I tested the game anyway. It runs fine in Linux (of course). It was 'Grimtown' from your discord site, who posted the game on Hachi's site. I guess he is a big fan. For future reverence, whatever RenPy you are using has Linux built in by default, so you do not need to worry about anything. If the game works in Windows, it will work in Linux with your RenPy.