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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6
votes
0answers
121 views

When did the change from "die" to "dee" occur? [duplicate]

When speaking about dice, some older gamers will say "die-6", compared to the more common (and seemingly younger) pronunciation of "dee-6". The only real points of reference I have ...
4
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3answers
242 views

Opposing d6 Pools, # of higher dice

I've read dozens of posts here, and wrestled with with anyDice suggested code, but nothing matches quite what I am looking for. I think it is simple in concept: for opposing dice pools of 1..6d6, I ...
2
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4answers
240 views

What are the probabilities of rolling doubles in a pool of d6s?

I am thinking of designing a ttrpg, and as a dice rolling system I was thinking of a system where players roll a pool of d6s. Any roll that results in multiples of the same number is a success, and is ...
45
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7answers
71k views

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 ...
25
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6answers
3k views

What is a decent dice rolling strategy for partial/half advantage?

I understand that 5e is all about advantage and cancelling, etc. I understand advantage well, and the statistics. I was hoping there would be a commonly known dice rolling strategy with similar ...
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2answers
1k views

How can I add a separate damage die to my homebrew magic item so that it rolls two separate dice on D&D Beyond's new dice roller?

How can I add a separate damage die to my homebrew magic item so that it rolls two separate dice on D&D Beyond's new dice roller? I got curious about for when my paladin reaches level 11/warlock 2 ...
23
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1answer
881 views

How many dice fit in the sun?

In the itch.io description of Pidj's RPG "The Sun's Ransom", it describes the core mechanic, which relies on using the cover as a prop (emphasis added): Resolution is via a simple dice pool:...
27
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8answers
16k views

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 ...
11
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3answers
1k views

Dice rolling mechanic where modifiers have a predictable and consistent effect on difficulty

I am looking for a dice rolling mechanic that makes it such that increasing or decreasing a modifier on the roll has a constant multiplier effect on the probability of the outcome. Say you have to ...
13
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2answers
590 views

Are There Alternatives to Dice Discussed in any D&D Literature?

On a family camping trip we found that we had left our dice on the kitchen table at home, and we have a family tradition of not using phones or other devices while camping. And yet D&D must be ...
69
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27answers
19k views

How do you play D&D when we don't have dice to play with?

Now I came all the way from Indonesia, and I can tell you that D&D is not a thing. Hence, it will be tough for me (and for my wallet) to find shops that sell d4, d12, d20 and so on. Let these dice ...
9
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3answers
346 views

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 ...
11
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4answers
1k views

How do I implement this specialized roll-and-keep mechanic in AnyDice?

I need help with an anydice function. I'm looking for a modified Roll and Keep type of mechanic, where if you have more dice that roll the max result than you are keeping, each discarded max result ...
23
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5answers
6k views

Is there a pattern for d8 dice?

I've just bought a d8, and noticed that the number arrangement is different from my other one. My new die has only even numbers on one half, and only odd on the other half. My old die has 1,8,5,4 on ...
16
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2answers
2k views

'Advantage' or 'Disadvantage' on damage rolls

I am looking at creating a few new categories of weapons just to add a bit more reason to spend money on mundane equipment in the early game. Poor, and Masterwork. My initial idea is that poor weapons ...
5
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3answers
2k views

Which systems use a dice pool *and* highest score mechanic? [closed]

I'm trying to design a system with a dice pool mechanic that looks at the highest roll in the pool as well as total number of successes? I want to show the quality of a success and it's extent. ...
11
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6answers
4k views

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 ...
-6
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1answer
186 views

Do any 5e books specify the "correct" way to read percentile with 2d10? [duplicate]

I recently had a discussion with someone about d100, specifically the two ways of reading the slightly specialized pair of d10s typically used for the purpose. As context for anyone unaware, a normal ...
3
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2answers
313 views

Is it possible to make this die probability work?

My best friend and I are doing a thing for a d&d game that involves potentially destroying the universe. This event will occur rarely, but we want to make it show up randomly (because it’s a ...
2
votes
0answers
83 views

D10 alternative long diameter [closed]

Newbie here with one d10 dice related question. I am making some minis standees and I would like to use d10 dice to easily visualise health for each mini. The ones I have are of 18-20mm size (I ...
17
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1answer
3k views

How do dndbeyond.com's dice work?

The character sheets on www.dndbeyond.com have the option to roll checks and to roll specific dice on the web page. How do these 3D animated dice work? Do they generate a random number and the ...
40
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2answers
7k views

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 ...
4
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4answers
3k views

Can a Circle of the Stars Druid roll a natural d3 (or other odd-sided die) to bias their Cosmic Omen roll?

The sixth level Circle of the Stars feature, Cosmic Omen, allows the druid to, for the remainder of a day, use their reaction to either help their allies or hinder their foes: Whenever you finish a ...
12
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4answers
4k views

Is this Homebrew Advantage rule broken?

I know about this suggestion. Mine is an even further extension of that, and I'm asking about whether there are any further issues and whether I've fixed Lucky. I find the way 5e handles multiple ...
-4
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1answer
283 views

What is the maximum amount of dice needed to play DnD [closed]

If I would like to be prepared to play any character build and roll any die only once. What is the maximum amount of dice that I would need to get. The highest I have heard so far would be 144 d6 (...
15
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5answers
718 views

100 sides vs 10 sides

I know of 100 sided dice. My group and I usually do the 2 d10 approach. I was tempted to get a d100, but it seems like it's almost a ball and doesn't seem very effective. What are the advantages of ...
12
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7answers
7k views

Are d8, 10, 12, etc. dice, fair dice?

Given a perfectly formed d8, or d10 or any d dice in Dungeons & Dragons (D&D), are they all fair dice? Is it equally possible to roll any number on any given dice? I am writing a text based, ...
202
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9answers
88k views

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 the ...
30
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8answers
21k views

Are these two methods of handling Elven Accuracy "Double Advantage" mathematically equivalent?

For context, part of the Elven Accuracy feat (Xanathar's Guide to Everything, p. 74) states: Whenever you have advantage on an attack roll using Dexterity, Intelligence, Wisdom, or Charisma, you can ...
100
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13answers
30k 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 ...
2
votes
1answer
226 views

How can I write a formula for this houseruled roll in AnyDice?

So here it goes: The roll is a pool of dice of d6s, d8s, and d10s. The minimum dice pool is 1d6 and the maximum dice pool is 10 dice. It could be 2d6 + 2d8 + 1d10, for example. Rolling 5+ is a ...
2
votes
1answer
127 views

Calculating Modified V5 Dice Probabilities with AnyDice

My game uses 5th edition rules with a house rule where 1s subtract successes and 10s count as two successes. 2s through 5s count as no successes and 6s through 9s count as single successes as normal. ...
6
votes
1answer
198 views

How to count the number of successes in a very large dice pool more easily?

What is a good way to roll a large number of dice and count how many of them "succeed" (i.e. meet or exceed a set target number)? I'm playing a game called Aberrant that uses the Storyteller ...
31
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11answers
8k views

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 ...
2
votes
1answer
1k views

Where can I buy a massive D4? [closed]

Simple question, really. I've had a look online on ebay, The Dice Shop, a couple of other online stores and just general Googling, but search engines don't seem to be very geared towards buying ...
53
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28answers
22k views

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 ...
34
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2answers
4k views

What does dice notation like "1d-4" or "1d-2" mean?

I'm trying to adapt GURPS 4th edition's system creation system into a Python script and I'm trying to understand the dice notation. In particular: Roll 1d-4 (minimum 0) to determine the number of ...
38
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24answers
7k views

Simulating these special dice on more regular dice

I've got a game that uses special dice for its resolution. Basically when making an opposed check, each side rolls a bunch of them based on the relevant trait, and whoever rolls most points wins. The ...
12
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1answer
1k views

What are the objective issues with dice sharing?

Tasha’s Cauldron of Everything, page 141 says the following (emphasis mine): Common in-game limits include - but are not limited to - [...] Common out-of-game limits include unwanted physical contact,...
26
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12answers
5k views

What is the ideal way of emulating a full dice set using a single d20?

Imagine you are trapped in a post-apocalyptic world and only have a single d20 at your disposal, nothing else whatsoever. What is the ideal way of emulating all other common dice types (d4, d6, d8, ...
14
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3answers
5k views

When aiming to roll for a 50/50, does the die size matter?

I noticed how D&D 5e's Hexblade Warlock subclass feature Armor of Hexes imposes a chance to miss regardless of the attacker's roll. That chance is based on a d6: if it's a 4 or higher it misses, ...
3
votes
1answer
180 views

What dice are used for the Adult Oblex's Eat Memories?

The relevant portion of the creatures stat block: Eat Memories. [...] While memory drained, the target must roll a d4 and subtract the number rolled from any ability check or attack roll it makes. ...
5
votes
1answer
654 views

What Counts as a Damage Modifier?

I was posting a homebrew/houserule here for critique (found here: Two-Weapon Fighting Mechanic Alterations ) and a point of confusion that came up was what exactly 5e counted as a damage modifier. The ...
2
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1answer
88 views

How to count near duplicates in a mixed pool using AnyDice?

Following on from this question: How to count duplicates in a mixed pool using AnyDice? I'm also interested in the much harder question of using AnyDice to look at how much easier some dice mitigation ...
5
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2answers
302 views

How to count duplicates in a mixed pool using AnyDice?

The following question provides a function that answers the question for a single kind of die; How do I count the number of duplicates in anydice? I want to count how many duplicates there are in a ...
10
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1answer
694 views

Is this d15 verifiably fair?

Following off of a question asking for how to make a d150 in which this d15 was mentioned in an answer, I was wondering if this d15 is fair (gives an equal distribution of results over its range). Is ...
7
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1answer
290 views

Is there an easy formula for multiple saving throws?

My issue: I am playing a druid and if I do something like summon 8 wolves I can end up forcing the DM into 8 saving throws each turn. I mitigate this on my end with an app to roll lots of dice, I pre-...
31
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1answer
3k views

Help me identify these 20-sided dice with assorted numbers from 4 to 72

I have these dice. I don't know where they came from or how I got them, and I can't imagine what they are for. They are 20-sided dice but the numbers on the sides are bananas. See image Numbers on ...
27
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4answers
19k views

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 ...
11
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1answer
288 views

How to create dice rolls for multi-attacks in a custom tabletop RPG system

I'm working on a simple tabletop RPG based in a sci-fi universe. The rule set is very basic, since I'll be playing with players with little experience and general tabletop know-how. Most of it appears ...

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