This was real fun! I liked that the dice you pick get used up, creating a need for longer-term thinking. The different dice types and upgrades, as well as the enemy types, were all really nice.
A gripe (that comes up with many games) is the combination of keyboard and mouse controls but then a menu that can't be navigated with the mouse. A little annoying, but not a huge issue. (Also, the "how to play" button didn't seem to work?)
But overall, a really solid entry. Great work!