I think the game could benefit from weapons/item explanation, not all items are visually destinct enough to understand immediatly what they would do. Also the shields seem to be a bit overpowered. Music and Sound effects could need an upgrade or are not specifically my taste.
I think the game idea is cool but it was too hard for me without understanding what a type of enemy/weapon i was currently facing, and I was not ready to put into a lot of trial and error. So for me the "readability" killed the gameplay, also would be good to give a more clear visualisation of dmg, health and armor. Maybe weapons switching should not take a whole turn, but that would change the gameplay.
If that is only your second game (on your itch page). it is already very well done! Keep going!