Dice are used in the majority of roleplaying games to generate random results, which in turn are used to determine the success or failure of actions attempted by characters. Most games use a variety of dice with a varying number of faces (known as polyhedral dice). The most common are four, six, eight, ten, twelve, and twenty sided dice.

In all games polyhedral dice are refered to in a notation derived from Dungeons & Dragons. A dice is noted by the letter 'D' followed by the number of faces,

e.g. a D6 is a normal six sided dice.

If more than one dice is to be rolled then the number is prefixed.

e.g. 3D6 refers to three six sided dice rolled together.

Finally if a number it to be added to, or subtracted from, the total, it is suffixed to the dice notiation.

e.g. 3D6+2 means the total of the throw of three six sided dice, plus 2.

Thus the most common dice are:

• D4 Four sided dice
• D6 'Normal' six sided dice
• D8 Eight sided dice
• D10 Ten sided dice
• D12 Twelve sided dice
• D20 Twenty sided dice
• D100 Hundred sided dice.
  In fact two D10's, one indicating the tens and the other the digits, used to generate percentile results.

Gamers refer to dice in conversation by their shortened names, e.g. "Chuck me over a dee twenty!"