Dominoes, or dominos, is a game played using rectangular tiles known as "dominoes." A collection of these gaming pieces forms a domino set, sometimes referred to as a deck or pack. The standard Sino-European domino set comprises 28 dominoes. Muggins, also called All Fives or Five Up, is a variation of the Draw game. In Muggins, players score points not only at the game's end but also on each turn if the sum of the pips at the ends of the line of play is a multiple of five. In some versions, the first double, or all doubles, can act as spinners, creating branching lines of play. All Threes is a variant where players score if the sum of the end pips is divisible by three. In Fives and Threes, scoring occurs if the sum is divisible by three or five. SUD Inc.