I have this odd idea for a resolution system and it goes like this.
For every roll you will be rolling 2D6 + D*, depending on attributes, etc. against a fixed DC of 11. Rolling an 11 or better gets you 1 step toward a win. Rolling less gets the opposition 1 step closer to a win. But then there's other stuff:
- Rolling X or better (15, perhaps) gets you an extra step toward a win.
- Rolling a 1 on any die gets the opposition 1 closer to a win, regardless of the total, so 5,6, and 1 gets you a step toward a win and the opposition a step toward a win (this is a PCs roll all the dice and it's not a tug-o-war thing, more like opposing pools of hit points). Multiple 1s count as multiple "Hits" for the opposition and they are, at least in extended conflicts, independent of hits the player gets.
- Rolling doubles on any dice gets you another step toward winning. Rolling triples gets you 2 steps.
My AnyDice skills are kind of weak, and I am asking a weird question. Or a set of questions:
- I was able to get the chances of being able to get > 10 on all the rolls, and > 14 is something I can do to figure out where I should put the really good result. But I don't know how to get the odds of rolling a double or the odds of rolling a 1.
- How much effect the size of the 3rd die has on the roll as a sense of character ability overall? I guess that chance of doubles is probably optimal on 3D6. So one of the things I really need to know is how much doubles are a factor overall, lest I do something like give characters significantly worse odds as they improve. D6 to D8 is probably a real sticking point here...
- I also need to figure out the spread of scenarios, somehow, where the chance that I will gain a certain amount toward my win condition while the opposition gains toward theirs. I think that's everything.