OK, thank you so much for the in depth feedback!
I'll fix the sound, thank you! I use a really low volume on my laptop so I might have not noticed... About the options not really changing the volume, I am not sure if there is anything I can do about that. The library I was using for sound turned out to not work when exporting to windows, so I am forced to use another library which is a bit clunky with volume change.
About the difficulty, I completely agree. I tried to lower it but turns out it didn't really work... level 8 does have a solution but it is really tricky. Maybe I should add a hint after you die a couple times.
About the numbers, yeah they don't have a lot of meaning actually other than knowing the next move, since the numbers change as the guards change. But they are supposed to give you some sense of control over it (and most of the players I asked do say that it helped), and allow you to understand the problem with the AI - that it makes move in isolation and without planning ahead. So you need to plan ahead and fix that. I am not really sure what I could add to make it clearer though. Do you think a better explanation of the AI would help?
And thank you so much for reminding me to make a pause menu!
I will think about the two rewinds, I am just not sure if I want to do that. The tenth level originally had 2 rewinds but then I thought about it a little and found a way to do it with 1 so I removed the second rewind. I think that right now I didn't fully explore 1 rewind, so before I add another 1 I should focus on that.
And once again, thanks a lot for the feedback, it helps so much!