DiceParser

Roll dice:
!3D100 => Roll 3 dice with 100 slides
!10D10e[=10]s => Roll 10 ten-slided dice, exploding on 10, and sort the result.
!1D8+2D6+7 => Roll 1 die with 8 slides and add the result to 2 dice with 6 slides and add 7.

!1L[sword,bow,knife,gun,shotgun] => Pick up word in list
!2Lu[sword,bow,knife,gun,shotgun] => Pick up two different words in list (Gun, sword for example).

8D10c[>=6]-@c[=1] => World of darkness sytem (VTM etc…)
(3+2D6)D10 => Roll 2 dice and add 3 to the sum of those dice. Then the result is used for rolling dice.

2d10i:[>15]{"Success"}{"Fail"} => if the sum of two 10-sided dice is greater than 15, It displays "Success", otherwise it displays "Fail".
2d10i:[>15]{"Success %1 [%2]"}{"Fail %1 [%2]"} => Same as above, but the result of each die is displayed inside square brackets.

Complete documentation here
It offers many operator on dice.
It shares its syntax with Rolisteam: www.rolisteam.org