# Questions tagged [dice]

For questions primarily about dice themselves: polyhedral solids used to generate random numbers. In tabletop RPGs, dice are the most common means of introducing chance into the proceedings. Many players enjoy collecting dice of varying colors and shapes.

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### How does rolling two d20 and taking the higher affect the average outcome?

D&D 5E has an "advantage" concept where instead of rolling 1d20, you roll 2d20 and take the higher. Likewise, disadvantage means rolling 2d20 and taking the lower. How does this affect ...
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### Pathfinder Damage Dice Steps

I am building a Human Gunslinger character who uses the Racial Heritage feat to get access to the Goblin Gunslinger feat so he can use a large double hack-but without penalty. Problem is, the the ...
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### How can I test whether a die is fair?

I have a d20 that seems to be, well, remarkably lucky.* How can I determine whether it's really just luck, or whether the die is in fact unfairly biased? *) Well, I don't, really. This is actually ...
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### How do I read 2d10 as a percentage?

I own 2 d10 dice with differently numbered sides (0 through 9, and 00 through 90), although the same applies for two identical 'regular' d10 dice. How do I read the percentage value if I use both dice?...
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### Is the Saltwater Float represented in this question a good way to test for loaded dice?

Recently a question has popped up in the comments of another question I've recently answered where a player has happened to roll three 18s and other high stats at a table with his dice, which could ...
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### 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 ...
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### Supporting degrees of success and failure when rolling

I have only played D&D so far, but I'm not that happy with it, mainly because the results are so binary. Take, for example, picking a lock. You roll a dice, you add your lockpicking modifier and ...
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### When rolling percentages, do 1d100 and two d10s (percentiles) share the same probabilities?

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 ...
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### What abilities allow me to reroll or replace die rolls?

I am building a "lucky wizard" for my newest campaign. The concept is to use abilities and features that allow me to reroll (or replace rolls) attacks, abilities, and/or saving throws (such as the ...
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### Do all RPGs have critical failures, and which was the first?

In all the games I remember playing, critical failures have always, in every case triggered an event. This critical failure is due to exceptionally bad rolls on dice, either a 'natural one' in DnD or ...
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### How do you play D&D without dice?

I'm from Indonesia, and I can tell you that D&D is not a thing. Hence, it will be tough for me (and my wallet) to find shops that sell d4, d12, d20 and so on. You also rarely see people selling &...
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### What can I use in place of Fudge Dice? [closed]

If someone doesn't have any fudge dice, what are the best methods to replace them and why? Term: Fudge Dice are six sided dice with two sides labeled with a +, two sides with a -, and two sides that ...
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### What are the statistical implications of doubling damage on crit instead of doubling the dice rolled?

I've been playing with a group that frequently allows players to double the value of dice rolled for crits (and other things) rather than rolling double the dice. Example, someone crits with 2d6 and ...
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### What game uses six-sided dice with symbols as well as numbers on the 5 and 6 faces and a blank space where “1” should be?

Note for reviewers, this question is a part of several similar questions. It has been broken down so as to not run afoul of other guidelines. Whilst they are almost identical, they are not duplicates ...
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### What game uses dice with engraved faces, weapon symbols, double weapon symbols and object symbols?

Note for reviewers, this question is a part of several similar questions. It has been broken down so as to not run afoul of other guidelines. Whilst they are almost identical, they are not duplicates ...
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### Balancing players' rolls, not characters

I have been the worst dice-roller in my party as far as I can remember. Be it D&D 3.5, 4th Edition, or any other dice based system, the goddess of luck has always been mean to me. To give you an ...
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### What game uses dice with compass point arrows, forbidden signs, explosions, arrows and targeting reticles?

Note for reviewers, this question is a part of several similar questions. It has been broken down so as to not run afoul of other guidelines. Whilst they are almost identical, they are not duplicates ...
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728 views

### What game uses dice with cyborg skulls in place of the 1 symbol?

Note for reviewers, this question is a part of several similar questions. It has been broken down so as to not run afoul of other guidelines. Whilst they are almost identical, they are not duplicates ...
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### What game uses glitter-filled dice with an arrow-like symbol with bracket-like symbols either side of it?

Note for reviewers, this question is a part of several similar questions. It has been broken down so as to not run afoul of other guidelines. Whilst they are almost identical, they are not duplicates ...
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### How do I determine the probability of rolling various ranges of numbers on 4d10, 5d10, etc.?

After realizing that my knowledge of how probabilities function has waned significantly, I'm wondering what the probability of rolling multiple 6's or higher (6-10) on four 10-sided dice, five 10-...
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### How can I examine the distribution of successes-counting mixed dice pools?

After looking at AnyDice's Documentation and Function Library, I remain baffled. I know that AnyDice can do this, but I don't know how to tell it to. Scott Gray's Dice Pool Generator is easier to use ...
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### Player may be manipulating die rolls, but I'm uncertain. How do I approach the situation?

I'm a new DM for four people who are all friends (I am also friends with all of them). During the game, I observed one player turn a D20 from a lower number to a higher number a couple times with her ...
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### What approaches are there to lessen or eliminate reliance upon dice in an RPG? [closed]

Is it necessary to use dice all the time in a dice-based RPG system? In other words, are there occasions or means by which you speed up gameplay by either reducing the number of rolls or removing the ...
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### Is there any known limit for how many dice RPG players are comfortable adding up?

After reading a few RPG systems that use successes and others that use dice whose shown number are totalled, I came to the conclusion that personally I prefer adding up a maximum of 3–4 numbers and ...
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### 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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### Is GameScience's non-cylindrical seven-sided die a balanced/fair die?

You might have come across GameScience's seven-sided die before: There's mixed discussion of whether it might be biased toward the 6 and 7 faces (the 6 being on the opposite side of the 7 you can see ...
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### Is it stated in the rules to be standard practice to hide rolls in 3.5e?

I haven't been playing D&D for too long, maybe a year, but the DM of the main campaign I'm in always hides his dice rolls. I don't have an issue with it, but when I play with another group the DM ...
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### Is it possible to emulate common polyhedral dice rolls using just a d6, and if so, how?

This is a question that I've asked myself numerous times, but I've never gotten a really satisfying result. The issue is this: let's assume we only have one or multiple d6 dice (arguably the most ...
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### Are Earthdawn's dice mechanics as unfair and wonky as my player claims?

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 ...
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### Why do most people consider a "00" and a "0" on a percentile roll a 100?

Assuming the results of a percentile roll ranges from 1-100, why would the results of a "00" and "0" roll be read as a "100"? In any other context outside of a percentile roll, the "0" on a d10 is ...
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### "Dee-twenty" and "die-twenty" pronunciations

(I asked this question recently on reddit, and got a mixed assortment of not-quite answers.) Most gamers pronounce, e.g., 'd20' as "dee-twenty", or '3d6' as "three dee-six". But a ...
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### How does rolling a 1 on a skill check play out if you have a +9 or better to that skill?

My DM is telling me a natural 1 is worst possible result, but when my build reaches Sorcerer 8/Bard 1, my Persuasion bonus will be +10, meaning my worst roll should be an 11. Right?
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### Natural 20 when rolling with disadvantage

If you are rolling with disadvantage and roll a natural 20 on one of those rolls, which die roll do you take? My question stems from the fact that natural 20s count as critical regardless of ...
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### Who should roll the dice?

Who throws the dice in your game? Do you want to see/know the numerical results? Does it impact your roleplaying? Personally, unless I'm in a formal tournament, I prefer not throwing dice and not ...
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### What is the best place to get quality polyhedral dice? [closed]

What is the best place to get quality polyhedral dice? Or what is the best brand of gaming dice? My dice are old and chipped and it's time for new ones. I'm getting back in the game after a break ...
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### Dice mechanic that handles very easy and very difficult tasks [closed]

I'm looking for a dice mechanic that supports a particular type of realistic feel. In particular, I'd like to find one where any task could potentially be rolled for without generating absurd results ...
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### How much is a Second roll worth in Modifier Bonus

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 ...
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### Improving "fumbles" when using pools of d10s in TROS

The original rules in TROS use varying pools of d10s to attempt rolling one or more successes against a varying Target Number (e.g., commonly a TN=7). Roll the pool of dice, count up the successes ...
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### Is probability of succeeding an opposed check the same when the second check is passive?

An "opposed check" is a well-known kind of check in many games, when two opponents roll dice, add modifier and compare results. It differs from a convenient dice roll when you compare your result ...
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### Modelling opposed dice pools with a swap

I have a dice pool system that awards for instance damage to the loser of an opposed roll. Players roll their pool of dice, with each player's target number being the highest number rolled by their ...
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### How do I use AnyDice with Classic World of Darkness / 20th Anniversary?

How can I take advantage of AnyDice with 20th Anniversary rules? I'm new to AnyDice but very interested in using it. I would like a wrapper function that accepts the following params. the number of ...
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### In AnyDice, how can I calculate the number of successes in the highest dice in a given dice pool?

I've tried the following code output [count {5..6} in [highest 2 of 10d6]] Which yields 0: 99.90% 1: 0.10% However, these ...
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### 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 ...
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### At what point did polyhedral dice become part of D&D?

I was reading some articles the other day about Gary Gygax, Dave Arneson and the history of Dungeons and Dragons. I started to wonder: Where did these guys from Wisconsin get the now iconic polyhedral ...
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### How do I read a 4-sided die?

In the Red Box starter game, when you choose to be a Rogue, it says that your damage is 1d4+4. When I rolled the dice, it had all three "4" symbols facing up. Did I do 4 damage, or do I add them up to ...
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### Dealing with large amount of dice rolls for a single damage roll without making it drag on

There are a number of spells and abilities that involve large amounts of dice rolling. For example, a high level rogue can have up to 10d6 in Sneak Attack, and a high level Wizard can have a ...
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### How does Halfling Luck (re-rolling my Nat 1's) affect my dice outcome?

The Halfling Luck racial trait lets you reroll natural 1's on checks, saves, and attack rolls, but you must keep the second result. With Advantage or Disadvantage, it lets you re-roll only one of the ...
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### Is there a name for this 20 sided die with two 1s, two 2s, etc?

Purchased this die from a hobby/tabletop store yesterday, mainly because I thought it looked cool, and that it was funny that it was so hard to read the faces: I was passively rolling the die, and ...
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### Dice Rolling Method Fairness

Recently, in D&D sessions I have been rolling poorly (nothing over 10), and thus tried ways to improve my rolling. I was using a plastic solo cup last session, and got really good results compared ...
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