I'm working on a simplified rpg-system that only use D6 and I want a mechanic for fumble/critical fail.
Depending on how good the player is they have 1-5 die to roll and they have to beat a difficulty set by the player. I thought it would be fun to have players fail if they roll all 1:s but realized it makes it way to hard to fail if you have 5 die, and a bit to simple if you have 1. Is there some more linear way of defining critical fails?
This is what I get:
Nubmer of Die Probability of all 1:s 1 16.67% 2 2.78% 3 0.46% 4 0.08% 5 0.01%
What I would like(approximately, exact numbers are not that important):
Nubmer of Die Probability
1 18% 2 15% 3 12% 4 9% 5 6%