If we accept needing the user to run an "algorithm" like that, we could have a D256(Or whatever the next highest fair dice is) and actually have a practical-ish

If we accept needing the user to run an "algorithm" like that, we could have a D256(Or whatever the next highest fair dice is) and actually have a practical-ish system. Although hex D16s would probably be better. D20s with 0-F plus two extras could be pretty awesome in a cyberpunk tabletop game. The other two could be "IOError" that makes the matrix glitch in a bad way, and superposition, that makes it glitch in a way you can use.