Dominoes, or dominos, is a game played using rectangular tiles known as "dominoes." These gaming pieces collectively form a domino set, sometimes referred to as a deck or pack. A 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 conclusion but also on each turn if the sum of the pips at the ends of the line of play is a multiple of 5. Some variations allow the first double, or all doubles, to act as spinners, creating branching lines of play. In the All Threes variant, players score when the total pip count is divisible by 3; in Fives and Threes, scoring occurs if the total is divisible by 3 or 5. SUD Inc.