The probability tag has no wiki summary.
41
votes
11answers
4k views
3d6 vs a d20: What is the effect of a different probability curve?
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 ...
33
votes
3answers
2k views
How does rolling two dice and taking the highest affect the average outcome?
I've read that the D&D 5E playtest 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.
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24
votes
7answers
903 views
Is it possible to produce a bowl-shaped probability curve with dice rolls?
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.
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15
votes
8answers
2k views
What is the statistically superior character creation method, twelve 3d6 or six 4d6?
The D&D 3.5 Player's Handbook gives (among others) two preferred methods to roll ability scores for a new character: a) roll 3d6 twelve times and keep the preferred six results, or b) roll 4d6 and ...
15
votes
6answers
1k views
Earthdawn dice roll probabilities
After ad-hoc running Misguided Ambitions with my regular DnD 4E group - because one guy was MIA - I had a discussion with one of the players about Earthdawn's dice mechanics. The player argued that ...
10
votes
3answers
987 views
What's the probability curve of the D10 Storytelling System?
Recently a friend commented that he thought the dice pool in the d10 Storytelling System actually gave mediocre results, and that by increasing the number of dice thrown you were actually decreasing ...
9
votes
3answers
275 views
Chances of rolling up characters for classes in first edition Dungeons and Dragons
I recently read a blog post about the probabilities of rolling up a character that would meet the requirements for all of the different classes in first edition Dungeons and Dragons. I'd love to read ...
6
votes
4answers
276 views
Can the astrology helping die decrease the chance of success?
Astrology can help most tests, but has a chance of actually taking away a success from the roll, thought it is unlikely.
Ignoring the fiction and focusing only on the rules, is there any situation ...
4
votes
2answers
402 views
Explain why Ubiquity doesn't have an asymmetrical bell curve like most dice pool systems?
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 ...
1
vote
0answers
127 views
Are there any mathematical tools to study ''RPG'' video games? [closed]
Lately, I have been interested in the various patterns I see in a genre of video games called ''role-playing'' games. I am analyzing very simple cases at the moment and I was wondering if there are ...
-1
votes
2answers
155 views
What is the probability for a thousand with 3 D10
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 ...
