I liked the concept and the art.
first of all, i would've liked an option to turn down the music in game, whoever it's not that big of a deal.
for the game itself, it's quite easy to understand, however, i didn't see the point in having radial cards.
I also didn't manage to cycle the deck, after I draw a couple cards, i simply get an empty hand even though the deck says it has 1/2/3 cards. After defeating the cube, not being able to restart the game is a shame as well.
however, despite my critique it's a solid project for 48 hours! If it is a little more fleshed out it'd be amazing!