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Questions tagged [anydice]

For questions about AnyDice.com, a dice probability calculator that offers probability curves for defined rolls, along with a function library for more complex calculations.

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10 votes
6 answers
2k views

Looked at a different rolling (3d6, 3d6, average) for D&D characters in AnyDice and the result didn't come out as expected. What am I missing?

One of the historical dice mechanics in AD&D that can be used is: 3d6 twice for each attribute and pick the best of each pair of rolls. Normal 3d6 once gives a mean of 10.50. Rolling two sets of ...
6 votes
2 answers
672 views

Help with probability for a complicated dice pool mechanic

I'm putting together a system with experimental dice mechanics. I want to know the probabilities involved, preferably in a way such as anyDice where I can easily change all variables and get the ...
4 votes
2 answers
355 views

How to plot multiple dice pool series in AnyDice

I would like to draw a graph of this in AnyDice: y-axis: percentage chance of success x-axis: number of D6 dice in the range 1-10 series a: success is at least one 4+ series b: success is at least ...
6 votes
2 answers
814 views

AnyDice: How to model opposed rolls from YZE?

Year Zero Engine uses d6's dice pools. On the standard roll you throw a bunch of d6's and count 6's as succesess. One is enough, but 2 and more can give you additional results (such as additional ...
3 votes
1 answer
180 views

Successive, conditional opposed rolls (anydice)

I am trying to model some probabilities for a pretty basic tabletop RPG mechanic. I have been searching for two days and trying to make this work myself, but my function-fu is weak, so I seek the aid ...
4 votes
1 answer
308 views

Opposing dice pools for successes

I’m working with AnyDice trying to figure out how to do an opposed roll between an attacker and a defender, each using separate pools of d6s, where the attacker succeeds >=4 and the defender ...
7 votes
1 answer
1k views

How to simulate d616 on Anydice?

In Marvel Multiverse Role-Playing Game, the players roll d616. It means that they roll 3d6, but: One die has a different color, its 1 counts as a 6 and it's called the Marvel die, which would mean <...
4 votes
2 answers
116 views

AnyDice - Complicated Stat Distribution

I'm trying to model average stat distributions for characters based on what a friend sent me: Balanced Stat Roll Roll 4d6 drop lowest five times. Count them together and deduct the total from 72. The ...
5 votes
3 answers
263 views

Count successes in pools of stepped dice

I tried to find this but my google-fu fails me. This is a mechanic similar to Blade Runner or Twilight 2000 RPG. For any action, the player rolls 2 dice which could range from 2d6 to 2d12 or anything ...
5 votes
1 answer
401 views

Help with AnyDice for custom system

Can someone please provide guidance on how to make my system work within AnyDice? The gist is: player stats dictate how many dice in a pool of d8s are rolled, if they have gear or skills proficiencies,...
6 votes
2 answers
556 views

How to calculate Vampire the Masquerade 5 odds on anydice?

VtM5 has many quirks that make their calculation of probabilities really hard. But ignoring hunger dice, how can I calculate the distribution of success of a given pool considering that each pair of ...
5 votes
1 answer
146 views

Anydice help with irregular dice pool [duplicate]

Here's the gist of it: I roll a number of different size die like 2d6, 2d8 and 1d12, looking for the highest die. I found a nifty Anydice program that helped me understand the probabilities like this. ...
8 votes
2 answers
1k views

How can you calculate the likelihood of getting a set of stats or better when rolling 4d6 drop lowest?

If I have a given set of character stats from rolling with "4d6, drop lowest", how can I calculate the probability of getting that specific result, or better values for each of them? For ...
3 votes
2 answers
100 views

Anydice: Number of successes when dice can be boosted

Trying to run some statistics on anydice and I'm getting an odd result. Figure something must be wrong with my code but I can't find it. My situation is this: Player rolls 4d6 and drops lowest. They ...
4 votes
2 answers
391 views

Anydice: when to use sequence and when to use die as a function parameter?

Anydice is a useful online tool that can help answer questions about dice probabilities. It allows the user to define functions. A special effect of functions is that when they are given a die or dice ...
1 vote
1 answer
149 views

How to include pushed roll chances in anydice?

D6 dice pool from 0 to 6 where resolving 0 is rolling 2 dice and counting the lower result only. Rolling 5 or 6 means a hit. Rolling 1 is a mishap. Degrees of Success: Failure: no hits at all Mixed ...
2 votes
1 answer
38 views

Anydice question involving pools and points to modify failures

Been trying to figure this out and it's just not coming to me. Hoping it's possible with anydice... So the player has a dice pool of 6d6. Success on a 5 or 6. That's easy enough to model. But I also ...
2 votes
1 answer
145 views

AnyDice code for rolling pools of dice, ignoring all 6s, and adding up the remainder; whoever rolls highest wins

I'm trying to ascertain the probabilities of the following pool system. If anyone could crunch some numbers in AnyDice so much the better. Two opponents roll a pool of d6. These pools vary from 1-10. ...
3 votes
2 answers
420 views

Trying to calculate "Emphasis roll" on anydice.com

I see two answers on this board for the "Emphasis roll" mechanic and neither of them match how the Emphasis rolls work. The idea behind the Emphasis roll is that you roll 2 d20's and take ...
1 vote
1 answer
75 views

How does success chance change when a certain die result counts as multiple partial successes?

Dice mechanism: count wins (> 4) of [Mod]d6 (AnyDice). Mod ranges from 1 to 10. Difficulty ranges from 1-10, 1 being trivial, 3 being moderate, 5 being difficult, and 6-10 being ever increasingly ...
2 votes
1 answer
152 views

How does the probability of success change by increasing the size of roll & keep dice pools or altering the difficulty number?

I want to better understand impact on probability of success granted by stat increases with the following dice mechanism: $$ \text{Dice Test} = \text{Roll}\ [3 + \text{STAT}]\text{d}6 : \text{Keep ...
10 votes
4 answers
3k views

Anydice: Reroll the lowest of 3d10 and keep the middle one

In a game I'm designing, usually you roll 3d10 and then keep the middle value. Example: If you roll 1, 2, and 10, your result is 2. In anydice this is easy to calculate: ...
7 votes
3 answers
2k views

Is it possible to model this die with anydice?

In anydice, I'd like to create a die, so that a roll would be the sum of 4 random values from the following sequence: {1, 1, 1, 1, 1, 3, 3, 3, 5, 5, 7} So that ...
1 vote
3 answers
1k views

How does this 2D6 probability math make sense?

I have a question about understanding the math to a previous question I had posed (answered successfully). Link at the bottom. The question is how does it make sense that rolling a 2D6 Die consisting ...
7 votes
3 answers
952 views

How do I create BLeeM's "Emphasis Rolls" on Anydice?

Just came across this rolling mechanic in my feed, and wanted to see an actual results table out of curiosity: https://homebrewery.naturalcrit.com/share/wyL-vuEIDrbC For the link averse: Roll 2d20, ...
2 votes
2 answers
213 views

Using AnyDice.com to calculate Non traditional dice combinations

I am not learned enough to figure this out alone. Not yet at least. I am trying to figure out how to use anydice.com to get probabilities of two different situations with dice. The main question is ...
5 votes
2 answers
140 views

In Anydice, how can I model nd10 where 8–10 counts as successes and 10s explode?

(Did some searching on SE and couldn’t find an answer…) Trying to model nd10 where 8..10 count as successes and 10s explode. output [count {8..10} in 3d10] ^ works ...
3 votes
4 answers
358 views

Anydice - Roll a d20 under target number but beat an opposed die

Curious about the following Anydice formula. I’d like to know how to calculate what it would look like to roll a d20 UNDER a specific target number (lets say 14 or 10), but also have that d20 still ...
5 votes
2 answers
707 views

Comparing weapons in Anydice with different hit chances and damage

Broadly speaking I'd like to be able to compare 2 weapons where one weapon does more damage but I hit more often with the other. I am in 1st edition AD&D and am about to go up against some ...
10 votes
2 answers
2k views

Roll and Keep in Anydice

I want to check out the probabilities of the Roll and Keep system (as known from L5R 1-4th Edition) in Anydice. We luckily have boundaries: We roll Skill + Stat + Modifier initial dice. 10 explodes;...
3 votes
1 answer
68 views

How to model a roll against a "difficulty roll" in AnyDice?

I'm working on a custom ttrpg system and I've noticed a lot of answers to questions in here regarding AnyDice. You would roll two die (such as a d6 and a d8) against a third die of any size up to a ...
8 votes
3 answers
992 views

How to calculate probabilities for a three pool elimination mechanic?

I've been struggling to get my head around this dice pool mechanic either in anydice or even a bespoke program. There are 3 pools of d6, call them A, B & C: ...
3 votes
1 answer
1k views

AnyDice formula for rolling 2d20 and dropping farthest value from 10

I'm trying to check the probabilities of rolling 2d20, and dropping the farthest from ten using anydice. (i.e. "Most Average" weighted roll, similar to 5e advantage/disadvantage. Basically you'd ...
10 votes
6 answers
2k views

How to calculate the probabilities for eliminative dice pools (dice cancelling mechanic) in Neon City Overdrive?

The game Neon City Overdrive uses the following resolution mechanic for checks: create a pool of Action Dice and (possibly) another pool of differently-colored Danger Dice (all d6, generally up to 5 ...
10 votes
1 answer
1k views

Why won't AnyDice let me store dice rolls in variables?

I'm trying to emulate a "Fate-like" distribution that imitates 1d6-1d6. That's not really the point, so much as I don't understand the error it gives me. ...
3 votes
1 answer
163 views

Converting dice faces into one another in Anydice

System In this system, we'll be rolling only two custom d6s to determine the outcomes. Each d6 can show 3 types of symbols that we are calling A (bad outcome), B (good outcome), and C (null, but can ...
3 votes
2 answers
409 views

Is it possible to combine multiple outputs in AnyDice?

I have a situation where I will be making four attacks that do different amounts of damage over the course of a round. I have the average damage of each of them(including the likelihood of missing ...
4 votes
1 answer
226 views

How to use AnyDice to properly calculate using Sneak Attack with multiple attacks?

I am trying to create a damage percentage study on AnyDice.com for a 5e Rogue using both an Attack and a Bonus Action attack with two different weapons. Most of this is pretty straightforward, in that ...
4 votes
2 answers
890 views

Anydice cancelling dice

I'm trying a program on Anydice that uses d6s where 1-3 = minor success, and 4-6 = major success. After the roll of 1 to 3 of these, you roll a different d6 where on a 5 or 6 you cancel (Nix) a minor ...
4 votes
1 answer
179 views

How to compute consecutive condition tests used in Warhammer with AnyDice

I try to simulate the Warhammer mechanic with AnyDice. In this specific example I would like to calculate the chances of a character model to produce X not saved wounds attacking X times. Which is ...
8 votes
2 answers
602 views

AnyDice: Limited exploding dice

I'm trying to write a custom explode function, which has a limit on the number of rerolls available. A basic limit of limiting the number of rerolls per die is easy enough. The problem is trying to ...
8 votes
2 answers
415 views

How to calculate the probability to roll a specific pattern with Y dice and Z rerolls?

I'm working on a dice-heavy RPG, and trying to model a generic AnyDice function to calculate the probability of rolling a specific desired result for dice faces, such as "At least 3 dice with ...
3 votes
2 answers
371 views

AnyDice function to reroll one die if any die rolls X

I’m by no stretch of the imagination any sort of programming type, but I’ve been trying to use AnyDice to rank all the possible ways the die rolls can be modified in the board game HeroQuest. The ...
6 votes
1 answer
669 views

How can you get AnyDice to add a flat value to a roll while calculating the "drop lowest" appropriately?

I'm trying to calculate the values for 4d4 drop lowest 1 and add 6. ...
8 votes
1 answer
1k views

With anydice.com, how can I get the middle 5 from a roll of 7d4?

I want to roll 7d4, and drop the highest and the lowest results. I know I can get the second highest with output 2@7d4, so I thought it would be something like <...
4 votes
5 answers
1k views

Calculating probabilities from d6 dice pool (Degenesis rules for botches and triggers)

I'm trying to generate a complex probability table for a dice pool with between 1--14 D6. The table will contain the probability of success and of critical failure, given a number of D6 rolled and a ...
2 votes
2 answers
404 views

AnyDice: Savage World but with an Exploding dice instead of 4

So I'm exploring some mechanics and I want to use Exploding Rolls, similar to Savage World, but I'm curious about the statistics of also having an exploding difficulty. For example: I roll 1d6 and 1d8,...
1 vote
1 answer
585 views

AnyDice: How can I compare highest roll of two dices with another result?

My question is that I want a system where I am always rolling 2 dices (let's say 1d4 & 1d8) to get the highest result of these two. Then, roll the difficulty with another dice (let's say 1d6) and ...
9 votes
1 answer
949 views

Anydice: "highest 1 of 3d6 1d12" function. Is this correct?

Would anyone that's anydice savvy take a look at this formula and tell if its correct for what I want to do? The idea is that it returns the highest value among the results of rolling three 6-sided ...
9 votes
5 answers
2k views

I need a 'standard array' for a D&D-like homebrew game, but anydice chokes - how to proceed?

So, I'm working on a homebrew RPG that is similar to several FRPs that use 3d6 sorts of starting values for attributes/characteristics. I know how to calculate the standard D&D (5E or other) '...

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