I admit that even with the controls known it's still very confuseing. Nothing is indicated anywhere and nothing is "obvious". Once you know how it works you simply spam the space bar until you've killed everything and take a potion once in a while. Also it might be because of my keyboard layout but I needed to use both the WASD and the arrow keys to move properly, and in addition to that I needed to use the mouse to roll the die (for what?)
However, I'm just being bad critic here, there was still some effort put into the game, the attack animation of the monster was quite funny and something lacking in a lot of other games: being able to go back to menu, and even quit the game easily (often underestimated)