Fudge dice (also called Fate Dice) are a custom dice type used in the Fudge and Fate role playing system. They have six sides with two sides that are blank, two sides with "+" symbols, and two sides with "-" symbols. This provides an even spread of +1, 0, and -1 for every roll of a fudge die. In the Fudge and Fate system fudge dice are used in sets of four and provide a range of -4 to +4 with a mean of 0. The probability of rolling a full string of pluses or minuses is one out of eighty one in each case. The Fate system being among the top twenty most popular RPG system and the official system for the Dresden Files and Atomic Robo makes Fudge dice the most common funky dice outside of the standard polyhedral set.