Hey!
This one is well done! My only problem would be that the theme isn't emphasised enough, I kinda get the reason behind it, but I was only be able to reach the shop (which I thought I would be safe in) but since the storm is not going anywhere that means I had to go out.
The feel of shooting is good, door selection mechanic and dungeon being procedural is really impressive. I wish I was able to code like you. Well done!