it's kinda interesting, but at some point scaling just goes out of the roof and the game becomes "get a good item or die". before I start speaking about my proposed solutions, let me state clearly what I think are the problems:
-it's almost always better to use items right after obtaining them
-the numbers scale up way too quickly
my proposed solution would be to make power escalation slower and allow the player to pick up 2 items after every turn.
another/additional way to incentivize players to keep the items for longer is to reward them for it. ie "take 3 damage. gain 4 shield. for every floor: gain +2 shield". that way players will think more about when to use the items, not only which one to choose.
another relatively interesting idea would be to add the ability to block as an action. currently you can only use items and attack, which is technically fine, but it's hard to make interesting strategies for it. block button could work in the exact same way as the attack button and get its own set of items. I definitely recommend it with the 2 items per floor suggestion.
the game is certainly interesting and I've spent ~2 hours playing it, and I think that it could have great potential in the future. I'm waiting for the future updates