Dice are used for generating random numbers and are often used in gambling games, such as craps or sic bo, or board games, such as Backgammon or. This form allows you to roll virtual dice. The randomness comes from atmospheric noise, which for many purposes is better than the pseudo-random number. Roll an online die! Number of sides: (Minimal 2. Up to 9 sides have pips, but more is possible.) Number of dice: 1, 2, 3, 4, 5, 6, 7.