I'm really liking the game. Keep it up!
Super fun.
Thoughts:
It took me quite some time to realize you could sell guns on the ground. Even when I saw "Sell" something did not quite click with me. In the beginning I had the starting weapon for way too long. Maybe something hinting at it better would be nice.
So far I've found the shotguns to be very OP compared to any other weapon type.