D&D 5E has an "advantage" concept where instead of rolling 1d20, you roll 2d20 and take the highest. Likewise, disadvantage means rolling 2d20 and taking the lowest. How does this affect the ...
What is the effect on game play of replacing d20 rolls with 3d6 rolls in a D&D 4e campaign? I started thinking about this after reading this question where the example was given of playing a d20 ...
In D&D's basic D20 system, you roll one d20 and add in some modifiers, then compare the result to a target number. Each modifier effectively adds or removes a 5% chance of success with the roll. ...
After an Earthdawn one-off running Misguided Ambitions with my regular D&D 4E group — because one guy was MIA — I had a discussion with one of the players about Earthdawn's dice mechanics. The ...
I have spent quite a bit of time coming up with an average damage document for my party and for several other characters. However, the one thing I have not been able to represent well is the average ...
A post on Pen and Paper Games forum states that the Ubiquity system does not have an asymmetrical bell curve as other dice pool systems typically do (like the D6 system). Where can I find this ...
I'm trying to figure out what is the probability with 3 D10's if I were to roll them one after another."001" is one and "000" is a thousand. Would every number have the same probability or doubles and ...
I know d100s are shunned because they take too much time to roll, and 1d10+1percentile is really fun, but do they share the same probabilities? Is it better to use a (digital) d100? Also, do d100s ...
I'm about to start in on a new campaign with the Roll For Shoes system, but I'm concerned that the characters will swiftly outstrip basic and intermediate challenges as they grow in dice. In the ...
I have a basic intuition about dice in Burning Wheel, but it's handy to be able to look at actual probability distributions to hone your intuition. Especially since important rolls can involve ...
That is to say, the value of a second roll, how much of a bonus value is it worth. For example: when you make a saving throw, attack or check roll, when does +bonus to the roll and rolling twice ...
I need a probability calculation script that works with various dice and dice pool sizes, that accounts for a mechanic that allows you to reroll up to X dice that are failures, but ONLY once per die. ...
In my Old School D&D campaign, I instituted a house rule to help the PCs raise their ability scores. Each ability score has a "fractional ability score". This is a percentile rating that starts at ...
I'm trying to compare two rogue builds to each other. The first rogue is easy. It's a wood elf with a long bow in a wilderness campaign, doing 1d8+mod damage and always being hidden with SA damage. ...