I believe it has something to do with permissions if I recall, one of our supporters awhile back put together a small command file that allows permission on the game file to run.
(Here's the command file. I think if you drop this into the game folder and run the command file. It'll allow the game to run just fine after that.)
Mega
Is it really that loud? Is this with update 0.15? Since we've transferred the game over to Ren'py, we're missing a few gui assets and one of those is a menu button at the title screen. Please do explain more clearly, is it the music on the title screen itself that is too loud and having no option to adjust volume for that? Or is it not being able to adjust volume on the title screen before starting the game, so the music that kicks in at the start of a new game is instantly loud?
Either way we're looking into getting some new gui assets created soon. On our list right now is being able to access the config menu from the title screen. A exit button on the title screen for those in full screen mode, so it's not a hassle.