It's a pretty solid game loop, trying to collect as many good items in the cave as you can so you can make as much money as possible selling them in the day. It was actually pretty intense when you are running back to the escape trying to remember the direction you came from while the torch is running out! I think you should think about making the cave part last for longer, as it is the most fun part of the loop, also maybe give the player a little bit more to do down there. also the font can be pretty difficult to read sometimes, which can matter when you are trying to read what the customer is looking for (maybe make it slightly bigger and a more easily readable font, or just if they say they are looking for a sword have the word sword stand out) I think with a bit more balancing this could be a really fun game. I had fun playing it and I would happily play it again if youre going to be updating with an inventory bug fix