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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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 ...
Fictotum's user avatar
2 votes
1 answer
104 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 ...
Fictotum's user avatar
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: ...
Kyalur's user avatar
  • 475
0 votes
3 answers
663 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 ...
Keith Plunske's user avatar
2 votes
2 answers
164 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 ...
Keith Plunske's user avatar
5 votes
2 answers
104 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 ...
Zakarius Jay Poggenpohl's user avatar
3 votes
1 answer
59 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 ...
Nekraen's user avatar
  • 33
3 votes
2 answers
357 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 ...
Brad Allison's user avatar
3 votes
4 answers
223 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 ...
Leberus's user avatar
  • 123
3 votes
1 answer
134 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 ...
Dodecaheye's user avatar
3 votes
2 answers
282 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 ...
SummoningSpark's user avatar
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. ...
Hypergardens's user avatar
  • 2,244
4 votes
1 answer
165 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 ...
Buckley's user avatar
  • 41
4 votes
2 answers
867 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 ...
Dodecaheye's user avatar
4 votes
1 answer
121 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 ...
artkoenig's user avatar
  • 143
8 votes
2 answers
485 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 ...
dsmith's user avatar
  • 183
8 votes
2 answers
324 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 ...
Nimbrod's user avatar
  • 83
6 votes
3 answers
843 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, ...
Dylan Rich's user avatar
3 votes
2 answers
201 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 ...
DracRTC's user avatar
  • 31
6 votes
1 answer
608 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. ...
Dorian's user avatar
  • 3,302
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 <...
Luke's user avatar
  • 437
4 votes
5 answers
857 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 ...
ThetaHanse's user avatar
2 votes
2 answers
324 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,...
Pedro Costa's user avatar
1 vote
1 answer
257 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 ...
Pedro Costa's user avatar
9 votes
1 answer
853 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 ...
Victor Julio Hurtado's user avatar
6 votes
3 answers
828 views

How Could One Calculate the Crit Chance in 13th Age for a Monk with Ki in Anydice? (If It Is At All Possible)

In 13th Age a critical is achieved when you roll a natural 20 on a d20. The Monk class has a few features that can fundamentally change its potential to crit. First off, a Monk using bare hands to ...
Stripe_dog's user avatar
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) '...
user3055321's user avatar
8 votes
2 answers
1k views

ANYDICE: How to roll 3d6 and in case 2 of them are a 6, add an exploded 1d6 to the result?

Pretty much the question. I tried the following: ...
Aralkis's user avatar
  • 103
9 votes
3 answers
883 views

Simulating "Heart: The City Beneath" dice using Anydice

I like to design systems and break apart games to learn stuff, and Anydice is a great tool I have been using for a while. However I am looking at some Heart rolls and it appears Anydice is giving me ...
Hexling's user avatar
  • 93
2 votes
1 answer
157 views

AnyDice: Count successes plus a limited number of easier successes

I've been searching around but haven't yet found how to get this average out of AnyDice. Players roll a pool of d6s. Normally, a success is counted on a 4, 5, or 6. However, there's a condition a ...
Jackson Green's user avatar
4 votes
2 answers
600 views

Anydice: Counting Successes on dice and rerolling any (+ bonus dice) below the target of 6 on d6's

I'm trying to model the roll and reroll probabilities of skill checks in Coriolis RPG. Here the skill rolls use a pool of d6, and you count how many 6 you rolled. You can optionally reroll any dice ...
Andy's user avatar
  • 43
5 votes
2 answers
379 views

How represent a D6 pool system where a 5 is half success and a 6 is full success using Anydice?

I am creating a YZE custom system using only D6s, where there is the possibility of getting a "half success" when you get a 5. That means you need to get two 5s to get one success. At the ...
Iuzzef's user avatar
  • 51
3 votes
3 answers
661 views

Dice odds of Doubles on 2D6 + D4/D6/D8/D10/D12 and Odds of 1

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 ...
Erik Amundsen's user avatar
8 votes
2 answers
370 views

How can I get an AnyDice conditional to convert a sequence to a boolean?

I'm trying to get AnyDice to roll a dice pool of dNs if any result = N roll one more dN output 1 if that die roll is greater than variable a target number (set by the count of successes e.g. one '...
AncientSwordRage's user avatar
4 votes
2 answers
147 views

How do I model an iterated series of combat rounds in Anydice?

Nemesis fights are straightforward: Choose pools of yang/yin, Roll Nd6 vs. Skill, Deal Yang hits to opponent(s), Block dealt hits with Yin or Chi, First to -1 Chi loses, Players win ties. Pursuant ...
order's user avatar
  • 3,664
4 votes
3 answers
604 views

What's the closest I can get to simulating critical hits with a dice pool, without relying on the total sum?

I'm making a game that uses a dice pool rolling system (for my purpose it's always a d12 and no other dice), and I wanted to figure out if making a 'critical hit' mechanic was possible, that is ...
AncientSwordRage's user avatar
3 votes
2 answers
384 views

Anydice Statistics for the Favored by Fortune system

Quick question about how to do the following in Anydice. I’m trying to figure out what the statistics are for a game called Household currently on Kickstarter that utilizes the Favored by Fortune ...
Leberus's user avatar
  • 123
4 votes
2 answers
273 views

Anydice: Neon City Overdrive type eliminative dice pool BUT danger dice cancel equal to AND less than

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 ...
Naothaniel's user avatar
5 votes
2 answers
700 views

Anydice: two-colored polyhedral dice pool

I trying to calculate probabilities for this dice mechanic, but I'm not sure that anydice can calculate that at all. The dice pool mechanic works like this: Players assemble a dice pool with green and ...
Awertum's user avatar
  • 53
2 votes
3 answers
268 views

Anydice: for XdY(Z+), what are the odds to get the same numbers on all successful faces for 2 success, 3 success, 4 success

For a count success dice pool system, what is the anydice formula to show the probabilities that the rolled success are all the same number? example: 6d6(4+), what are the chance to have 2 success ...
user avatar
2 votes
1 answer
234 views

Anydice: for XdY(Z+), what are the odds for at least doubles in Z+?

For a dice pool of 6d6(4+), where any dice showing 4 or 5 or 6 is a success, what is the anydice formula to have the probability of at least a double among the 4+ dice? The goal is to know the chance ...
jasonsol's user avatar
6 votes
4 answers
217 views

Anydice: a pool where stress dice cancel out action dice of equal or lower value and return the number and value of action dice remaining in the pool?

I've seen a couple of other posts with similar but distinctly different dice canceling mechanics so I figured I would ask for a hand. The mechanic is this: Players roll a pool of Xd6 Action dice and ...
Erbrakaderbra's user avatar
1 vote
2 answers
384 views

How do I calculate the probabilities of two consecutive success results in AnyDice?

I know that rolling with disadvantage gives you a negative bonus in between 1 and 2, that's easy to calculate in anydice.com but how can I estimate the increasing in difficulty that adds an extra roll?...
jose's user avatar
  • 11
9 votes
4 answers
2k views

How do you simulate dependent dice rolls in anydice?

I'm attempting to find the damage distribution (given a target with stats) of a series of two 5e attacks, mind sliver and then two melf's minute meteors. But it seems I'm having trouble modeling dice ...
brubsby's user avatar
  • 192
6 votes
1 answer
184 views

Anydice help for damage formula based on number of dice above target armor value times the highest / lowest / most common roll above target

A buddy and I were playing around with an idea for a combat damage model using multiple d6, which are reduced by a target's armor. So, here’s the basic idea: Player rolls Xd6, any dice that come up ...
bighatjustin's user avatar
11 votes
5 answers
2k views

Is it better to make two separate contested rolls or one with advantage?

I'm trying to model the benefit of enemies working together in contests with my PCs. Assume I have a pair of enemies that are attempting to shove a PC. They are smart enough for one to use the Help ...
highbandwidth's user avatar
5 votes
4 answers
340 views

How do I get the sum of highest rolled dice normalized for dice count?

My goal it to model a system where you roll xd10 and get the sum of the highest result you got (so "6, 3, 5, 5" becomes 6 and "4, 4, 2, 4" becomes 12), and then see how each extra ...
ThanosMaravel's user avatar
4 votes
2 answers
236 views

Plotting average result against a variable

I'm trying to figure out how to create an odd dice curve - specifically, odd when plotting between an axis of average result versus amount of dice (so xd6 gets 3.5 for x=1, 7 for x=2 and so on). But, ...
ThanosMaravel's user avatar
3 votes
1 answer
235 views

AnyDice: Nested highest/lowest function

I understand how to keep highest or lowest die every time: ...
kando's user avatar
  • 165
9 votes
6 answers
1k views

Modelling "rolling d6 >= charges left expends a charge" mechanics with anydice

You have X charges left. Rolling a d6 equal or over the number of charges left depletes a charge. How many uses do you get out of a starting X charges? e.g. 1 charge, 1 use left. 2 charges, rolling 2 ...
Hypergardens's user avatar
  • 2,244