Standard, percentile and Fudge dice

Numeric dice

NdX rolls N dice with X sides and sums their faces. Omitting N means one die. d defaults to twenty sides; 3d becomes 3d20. Sides must be integers from 0 through 2³², subject to configured limits. d0 is valid and always produces 0. 0d6 normalizes to the constant 0 without creating dice.

d20
3d6
2d8+4
d0

Computed count and sides

Use parentheses to compute a count or sides before rolling. The result must be a valid integer and the expression must be deterministic.

(2+1)d6
d(2+4)
(2+1)d(2*3)

Percentile

d% has faces from 1 to 100 and is numerically equivalent to d100. 2d% rolls two independent percentile dice.

Generic Fudge dice

dF and dF.2 produce −1, 0, or +1 with equal probability. dF.1 uses six internal faces: one −1, four 0, and one +1. f expands to 4dF and 2f to 2dF. The Fate API also preserves physical faces and semantic symbols.

d%
4dF
10dF.1
f

Try the examples

Try 3d6 · Try 4dF · Try d%