This has potential. The combat probably needs some more explaining. Maybe add some cards at start as I did not picked up the cards in the starting zone but went right into exploring and got busted early on because I did not have anything and did not know how the combat worked too.
After I corrected my mistakes it was a lot easier. Like others I also think that the minimap is a bit to intrusive and I ended up playing by the minimap which is a bit of a shame as I like the graphics. I think the tile size you are using is a bit small and maybe this is causing the clipping issues.
I am not sure if I get the theme implementation.
Are you going to update it post jam?