# Difference between revisions of "Dice Roller"

### From Roll20 Wiki

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+ | == Useful Rolls == | ||

The dice roller is very easy to use, simply type in the formula in the box and press enter. Roll20 features support for a wide array of dice mechanics. For the complete list, visit [[Dice Reference|this page]]. | The dice roller is very easy to use, simply type in the formula in the box and press enter. Roll20 features support for a wide array of dice mechanics. For the complete list, visit [[Dice Reference|this page]]. | ||

− | + | ==== Exploding Dice ==== | |

+ | |||

+ | With exploding dice, if you roll the maximum number on the dice (a 6 with a d6, a 10 with a d10, etc.) you get to re-roll again and add the additional roll to your total for that roll. If the additional roll is also a maximum number, you get to keep rolling! | ||

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+ | To perform a roll with exploding dice, just add an exclamation point after the number of sides in the formula. For example, <code>/roll 3d6!</code> would roll 3 d6 dice with exploding re-rolls. You can also define the exploding point for the dice using the greater-than and less-than symbols. For example, <code>/roll 3d6!>4</code> would explode on any dice greater-than or equal-to 4. <code>/roll 3d6!3</code> would explode only if a 3 is rolled. | ||

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+ | ==== Drop/Keep ==== | ||

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+ | Some game systems ask you to roll a large number of dice, and then either drop a certain number of the lowest rolls, or keep only a certain number of the highest rolls. Roll20 supports this type of roll through the <code>d</code> and <code>k</code> commands, respectively. | ||

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+ | For example, you might roll 8 d100 dice and only be allowed to keep the top 4 rolls. In Roll20 this would be expressed with <code>/roll 8d100k4</code>. When Roll20 prints the output from that roll, you'll see each individual d100's rolled value, and all but the top 4 rolls will be greyed out. Roll20 will then give you the total of the top 4 rolls. Doing a roll to drop the 3 lowest rolls would be very similar: <code>/roll 8d100d3</code>. Again, the value of each dice rolled will be displayed, with the 3 lowest rolls greyed out. |

## Latest revision as of 18:09, 12 February 2015

1d20+3

## [edit] Useful Rolls

The dice roller is very easy to use, simply type in the formula in the box and press enter. Roll20 features support for a wide array of dice mechanics. For the complete list, visit this page.

#### [edit] Exploding Dice

With exploding dice, if you roll the maximum number on the dice (a 6 with a d6, a 10 with a d10, etc.) you get to re-roll again and add the additional roll to your total for that roll. If the additional roll is also a maximum number, you get to keep rolling!

To perform a roll with exploding dice, just add an exclamation point after the number of sides in the formula. For example, `/roll 3d6!`

would roll 3 d6 dice with exploding re-rolls. You can also define the exploding point for the dice using the greater-than and less-than symbols. For example, `/roll 3d6!>4`

would explode on any dice greater-than or equal-to 4. `/roll 3d6!3`

would explode only if a 3 is rolled.

#### [edit] Drop/Keep

Some game systems ask you to roll a large number of dice, and then either drop a certain number of the lowest rolls, or keep only a certain number of the highest rolls. Roll20 supports this type of roll through the `d`

and `k`

commands, respectively.

For example, you might roll 8 d100 dice and only be allowed to keep the top 4 rolls. In Roll20 this would be expressed with `/roll 8d100k4`

. When Roll20 prints the output from that roll, you'll see each individual d100's rolled value, and all but the top 4 rolls will be greyed out. Roll20 will then give you the total of the top 4 rolls. Doing a roll to drop the 3 lowest rolls would be very similar: `/roll 8d100d3`

. Again, the value of each dice rolled will be displayed, with the 3 lowest rolls greyed out.