For those who are not good with first-person perspective (like myself), you might want to make a clearer map to help navigate these dungeons. I could not get far at all on account of constantly getting lost, prematurely celebrating upon finding my first door in ages that in fact led to absolutely nowhere.
I was intrigued to see a game involving cards among the offerings because I thought it would suggest a novel mechanism. For what other reason, then, must our enemies be some totally-NOT-Yu-Gi-Oh! cards (according to several frames of reference, I would imagine)? Why is Aaelind not in our party? I thought we were Aaelind. If we supposedly volunteer our services to the king, why does he threaten to lock us up in jail should we fail? Um... thanks? I would totally want to work for this obviously benevolent king...?
The defaced graphic for cards nearing their end was a nice touch, though I think more subtlety would better suit them.