This is one of the most original concepts I've seen so far, and I think that it can go very far whether it becomes a full game or just a side mechanic of a bigger project.
The sound was nice, and the artstyle fit the atmosphere as well. I would say that I found it a little frustrating that there was no way to get dice back (at least not from what I've seen) and that most numbers were only 3, 12 and 13.
If you add a mechanic to get back dice, and add a bigger variety of numbers, the game would be so much better.
Great job overall :)