Dice hand; they are thus a crude form of hardware random number generator. Perhaps to mitigate concerns that the pips on the faces of certain styles of dice cause a small bias, casinos use precision dice with flush markings. Common dice are small cubes most commonly across, whose faces are numbered from one to six, usually by patterns of round dots called pips. (While the use of Arabic numerals is occasionally seen, such dice are less common.) Opposite sides of a modern die traditionally add up to seven, implying that the 1, 2 and 3 faces share a vertex. The faces
Dice pool the system goes into. They also provide players with a physical representation for the modifiers, as real, concrete dice are added to the pool (or taken away from it). Some people also find rolling a large handful of dice fun in its own right. The other thing dice pools allow is opening up a lot of design space for game designers; if something other than the number on the dice is important, the number itself can be used to add richness to the system. West End Games's "Ghostbusters" role-playing game by Greg Stafford, Lynn Willis, and Sandy Petersen featured a