Fun game, I would give the items a clearer way to identify rarity, like a full colored border and a grayed out items for the broken ones.
Some utility for selling items and breaking them like
Ctrl + S - Sell in the city
Ctrl + D - destroy hovered item
some hotkey to use the potion and teleport back to the city would be good too.
Ctrl + Arrows - Would be interesting to navigate the map without using the mouse.
I believe in general the game would be more entertaining if we had a way to play it using the keyboard more often and leaving the mouse for picking items.
I would even go a next level: Instead of all the junk items, when you clear the room, you have a couple items to pick from and you can hotkey them to pick or pick and equip/replace equipment. But I know this deviates from the game style!
Fun game.