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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2
votes
2answers
56 views

What homebrew dice mechanic can I use for PvP in Amazing Tales?

I've recently started playing Amazing Tales with my children. As a summary of basically all the mechanics of the game (it's pretty simple since it's targeting children), each character has four skills,...
5
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1answer
199 views

How would this House Rule for combined Advantage/Disadvantage Impact Rolls?

According to the rules for Advantage/Disadvantage: If circumstances cause a roll to have both advantage and disadvantage, you are considered to have neither of them, and you roll one d20. This ...
10
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3answers
611 views

Is there a way, other than having a Diviner friend, for a player to avoid rolling Initiative at the start of a combat?

I've been starting to theorize the following concept: a player who would... never... roll dice... ever. Not in combat, not elsewhere. No dice. Literally. But I have come across a major obstacle: ...
10
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1answer
418 views

What brand and style is this D20?

I've had this one die for nearly 30 years, and I just started sorting and displaying my collection so I'm trying to find out which brand/style it is so I can hopefully complete the set someday. I ...
7
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1answer
117 views

How can I calculate the probability of meeting a certain Difficulty Value on 3d6 with critical success/failure modifiers?

In one Fuzion-system variant 3d6 is used to resolve skill checks. A Task is given a Difficulty Value (DV) from 10 (easy) to impossible (30 and beyond). Characters can have primary attribute levels ...
13
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3answers
3k views

What uses does D&D 5e have for a d100?

After many years I've finally got around to buying a couple of d100s, because I think they're great fun, and percentage die are for wimps ;-) I am also in the middle of a 5e campaign, and I wondered ...
2
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1answer
252 views

What is the name of the online dice roller that makes it less likely to roll the same number sequentially?

I'm searching for an online tool a friend used in an RPG once, no more than two years ago. The tool is a dice roller that adjusted the probabilities of an otherwise fair dice roll to make it less ...
8
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1answer
440 views

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 ...
10
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1answer
431 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 ...
14
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1answer
1k views

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 ...
14
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1answer
605 views

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 ...
22
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1answer
3k views

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 ...
31
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14answers
7k views

How many sets of dice do I need for D&D?

I just started playing and am borrowing my friends' dice every time we play. I am looking to buy my own. How many sets do I need to buy?
20
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4answers
832 views

How do I calculate how many of an item I'll have in this inventory system?

I beta tested a game last week with a pretty fun system. This system is called "Dés d'usure" (in French, because it will be a French game). I translate it into "Wear dice", but I'm unsure. When you ...
9
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1answer
191 views

I would like to simulate a die from Anima: Beyond Fantasy in the Rolisteam dice roller on Discord. Can I do that, and if so, how?

As I'm sure anyone who has played it knows, Anima has interesting dice behaviors. Manually keeping track of them is kind of a pain in the neck, so I was wondering if there was a way to implement them ...
10
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1answer
419 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 the linked d15 is fair (gives an equal distribution of results over its range)...
20
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13answers
5k views

How I can I roll a number of non-digital dice to get a random number between 1 and 150?

This question is not actually related to RPGs but is more of a real-world dice rolling scenario I'm looking for help with, from dice rolling experts. I'm currently memorizing the Book of Psalms, ...
6
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2answers
293 views

What is the average point buy of a stat array from a 6x6 matrix of “roll 4d6, drop the lowest die”?

For character creation my group sometimes uses a weird method to generate stats. We roll 6 stat arrays using 4d6d1 (rolling 4d6 and dropping the lowest), and arrange them on top of one another to make ...
18
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6answers
5k views

Does the shape of a die affect the probability of a number being rolled?

Let's say I have a standard D4 and a custom D8 that has printed 1-4 and then 1-4 again (for a total of 8 sides). Would both of these dice distribute the probably of rolling any given number equally? ...
5
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1answer
211 views

Is it okay to suggest a dice roll as a player?

I was wondering if it could be okay in certain situations to ask for, or suggest, a test when I feel it makes sense to do so but the DM didn't ask me to roll a dice? To be more precise, I'll ...
52
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8answers
4k views

How to approximate rolls for potions of healing using only d6's?

I want to make tabletop potions of healing out of corked vials (test tubes) filled with dice. Each vial would be labeled and filled based on the potion it represents. For example, a vial for a potion ...
22
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6answers
5k views

What is the difference between rolling more dice versus fewer dice?

Let's say there are two attacks: one rolls a 10d10 and the other rolls a 5d20. Assuming the modifier was the same, which rolls would have better chances of rolling average, and which would have ...
17
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9answers
3k views

How can the probability of a fumble decrease linearly with more dice?

I'm working on a simplified RPG system that uses only D6s, and I want a mechanic for fumbles/critical fails. Depending on how good the player character is, they have 1-5 dice to roll and they have to ...
23
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2answers
3k views

What is the Guild Die for?

I was gifted a set of Guildmasters’ Guide to Ravnica Dice, and, upon opening, I encountered the “guild die” (see the picture below). I’m a bit confused about what its purpose is. Could someone please ...
9
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2answers
573 views

How can I use AnyDice to simulate rolling 6d6, and dropping the 2 lowest and 1 highest dice?

I'm running a new D&D 5e campaign soon and I'd like to try rolling for stats with some guardrails. Doing some test throws at the table, I liked the look of rolling 6d6, then dropping the highest ...
22
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3answers
4k 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 ...
6
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2answers
413 views

How can I set up a Roll20 macro to roll certain additional dice depending on the results of an initial die roll?

I am playing a wonderful homebrew campaign running D&D 5E via Roll20 (I have a Basic account), and I have just rerolled as a wizard. One of my spells, prismatic spray, requires that I roll 1d8 for ...
4
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2answers
93 views

How do I use the encounter chance tables in the AD&D 1e DMG?

I'm trying to set up a campaign and I'm not great at math. We play old school 1e AD&D. The 1e DMG gives two tables on page 47 for chance of an encounter. The base chance of encounter depending on ...
19
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6answers
2k views

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-...
5
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1answer
192 views

Chances to roll a number of results greater than 5 on a number of d10s

I'm trying to figure out how to implement a dice roller function. I would like to know the chance in % to get [1 to X] results of 6+ on [1 to 10] 10-sided dice. So, for example, I would like to know ...
7
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4answers
2k views

What counts as the lowest value on a percentile die? [closed]

If I'm making an image with a standard set of seven dice, all showing as having rolled the lowest possible result, I obviously want to have that be 1 for six of them, but what should I use for the ...
4
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3answers
822 views

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 ...
3
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0answers
85 views

Plans or Blueprints for a game table [closed]

I have been gaming for many years, and now that I have a dedicated room to keep all my gaming stuff, I would like to build a table. So far we have been using a plain dining room table. Has anyone ...
3
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1answer
743 views

Is there a way to turn off default crit damage rolls in roll20?

I have a crit table I use for random crit events. The table is recursive and triggers whenever a 20 is rolled, but the default programming in Roll20 also rolls the additional damage roll that's built ...
87
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5answers
14k views

Rolling a D10 (0-9) for hitpoints. What do I get with a zero?

My character leveled up and I rolled a D10 to determine the rise in hitpoints. The dice that I used goes from 0 to 9 and I rolled a zero. The DM told me that this means I only add my modifier (0 + 3 = ...
26
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6answers
14k 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 ...
2
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1answer
1k views

How to check if a dice set is correctly weighted? [duplicate]

So let me give you a bit of backstory, I went to a friend's place to play DnD and I decided to put my solar powered dice to charge on top of my friend's standing lamp with the plastic box practically ...
31
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4answers
7k views

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 ...
2
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1answer
552 views

I need a dice system with a unique behavior and rate of growth (preferably in ANYDICE to verify) [closed]

I am looking for a defense system where the probability of hitting is proportional to the inverse of a quadratic polynomial with respect to defense. I don't care about attack scaling yet. If you ...
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3answers
3k 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 ...
11
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3answers
436 views

Probability of a d10 matching any faces on another Nd10

I am trying to figure out the probability for one separate d10 to have a matching face with a pool of d10 comprised by up to 5 other d10s. So just to make myself clear, the player rolls 5 d10s and a ...
0
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2answers
140 views

Dice Rolls for PBEMs [closed]

Is there an online dice roller that has some kind of confirmation mechanism so it can be used by forum/PBEM games? For example? Bob: "I kick open the door" MC: Roll here [gives link] Bob: [...
11
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3answers
1k views

Are there 12-sided d4 dice? [closed]

I don't particularly like D4 dice since they can't roll well, so I was thinking about using a D12 since mathematically, if you do modulo 4 + 1 you should still have an even distribution among the ...
5
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2answers
1k views

Is there a standard d10 dimension ratio?

Of the six standard game dice (d4, d6, d8, d10, d12, d20, ignoring labeling variants), all but one of them are regular polyhedra, meaning their size varies in only one dimension (scale). The d10, ...
4
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1answer
713 views

If the saltwater float can (with difficulty) be used to determine a dies balance, would a more dense liquid such as galium be better at doing so? [closed]

In another question I asked if the Saltwater float present in a specific youtube video was capable of determining any differences in mass between the faces of a die in determining the balance of a ...
5
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3answers
426 views

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 ...
76
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3answers
18k views

Does microwaving a die significantly alter its balance?

I saw a rumor online a long time ago that stated by microwaving a die on a specific face it would be more likely to land on said face and have been looking for science by which to either prove or ...
2
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2answers
633 views

What's the name of this dice set with blue letters on red-and-black?

I have a red speckled dice set with blue numbers, and I think the company that made them was Chessex. However, I have searched Google for a few minutes, but could find nothing on this set. I also have ...
29
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6answers
8k views

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 ...
17
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4answers
3k views

What dice do I need to make for a Pathfinder player?

My son is off at college, and he has recently started a d&d group. We are close, but the distance between us, along with his schedule, have kept us from communicating as much as I'd like. I ...