you could rework he inventory to less restrictive on the slots but harsher on the weight system ( more space and focus on weight management) or make backpacks that give extra slots ( so there's more use for them). serious since the inventory is so small i never have to worry about the weight limit since unless i fill my inventory with sledge hammers my inventory is full long before weight becomes a problem
i found that weapons clothing ceasing to be when out of durability a little annoying you could rework so that weapons just break and clothes tear. so weapons become ineffective or unusable and clothes become ripped and don't give a bonus or stop enemies from sexing you but allowing you to repair them (also clothes could appear as ripped rags on the character when torn)
a way to upgrade and reinforce weapons and armor would be nice (fallout 4 style ya know?) also making construction stores so theirs a way of getting more materials because even on very common i find very little materials anywhere
slimes acid destroy clothes too quickly so a way to make them more acid resistant or repair outside of crafting stations could be a good idea
slimes have too much range and slow you down when you try to doge at them so having a ranged option or just faster combos focused on range/defense focused combat would be nice. also please give a way to clear slime puddles (plz)
and last thing.... i just wish i could equip goggles and masks at the same time for fashion reasons