Death by Dice

Controls:

Left click to throw primary dice

Right click to throw secondary dice

WASD or arrow keys to move

After clearing a floor, return to where you spawned and touch the portal to go to the next one. There are 20 floors, with every fifth floor except the 20th having a dice choosing stage at which you can obtain new dice. The 20th floor is a boss fight, however, keep in mind it's pretty scuffed (game jam moment).