I am working on a simplified rpg system that only uses D6 and I wish a mechanic in case of critical / fumble failure.
Depending on the quality of the player, they have 1 to 5 dice to throw and they must overcome a difficulty defined by the player. I thought it would be fun for the players to fail when they throw every 1: s, but I realize that it's hard to fail if you have 5 dice, and a a little simpler if you have 1. Is there a more linear way of defining critical failures?
Here is what I receive:
Number of dice Probability of all 1: s 1 16.67% 2.78% 3 0.46% 0.08% 0.01%
What I would like (about, the exact numbers are not so important):
Number of dice Probability of all 1: s 1 18% 2 15% 3 12% 4 9% 5 6%