Inverting roll-under percentile systems?
Posted: Fri Aug 29, 2014 3:22 pm
So Dark Heresy 2nd edition is on it's way and my old campaign group has asked me to start the game back up. While a lot of derp has been made less derpy in 2nd ed, I still believe the core resolution mechanic is percentile roll under. So like your target number is your stat plus training skills plus any modifiers. So dodge would be like a base of 32, plus 10 points for being trained in dodge, and maybe plus 10 for the situational modifiers, giving a total target number of 52.
I know Frank's advocated a roll-over system for percentile (when percentiles are used) of adding all your bonuses and skills up and rolling a percentile and trying to break 100. And conceptually this seems like it might make the game run smoother. Degrees of success are easier to determine (in DH every 10 points below the target number you get a degree of success. With roll-over the tens digit is the number of additional successes. Easy peasy). Overall it just seems like it'd be easier than adjusting against a constantly changing target number conceptually for my players.
It's early, and I haven't had enough coffee yet, but it seems like just house ruling that the basic resolution mechanic is moving to a roll-over system instead of a roll-under system wouldn't change the probability of success at all- it'd just change the method of math. Is this right?
Edit: The funny thing is that the wound system, insanity system, corruption system, and I believe the psychic side effect system all use a percentile roll-over resolution mechanic. So it obviously occurred to someone that this would be better at some point. I have no idea why it wasn't made unifying.
I know Frank's advocated a roll-over system for percentile (when percentiles are used) of adding all your bonuses and skills up and rolling a percentile and trying to break 100. And conceptually this seems like it might make the game run smoother. Degrees of success are easier to determine (in DH every 10 points below the target number you get a degree of success. With roll-over the tens digit is the number of additional successes. Easy peasy). Overall it just seems like it'd be easier than adjusting against a constantly changing target number conceptually for my players.
It's early, and I haven't had enough coffee yet, but it seems like just house ruling that the basic resolution mechanic is moving to a roll-over system instead of a roll-under system wouldn't change the probability of success at all- it'd just change the method of math. Is this right?
Edit: The funny thing is that the wound system, insanity system, corruption system, and I believe the psychic side effect system all use a percentile roll-over resolution mechanic. So it obviously occurred to someone that this would be better at some point. I have no idea why it wasn't made unifying.