I absolutely love this game, I even covered it in a video I made. (The video is being remade tho so it's not up currently)
But the reason I am commenting here is cause I have been having an issue, when I first downloaded the game it was for the 1.1 update, but when the 1.2 version released alongside it being added to steam I downloaded it there, but ever since I have I haven't been able to change my resolution from 720x400, even when I completely delete the game and download an older version the issue persists.
I don't know why as back when I first had the game I was able to change it just fine. I played the older version at 1920x1080.
If there's anything that can be done to fix it please let me know.