Dominoes, or dominos, is a game played with rectangular tiles called "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 contains 28 dominoes.

Muggins, also known as All Fives or Five Up, is a variation of the Draw game. In Muggins, players score points not only at the end of the game, but also on each turn if the sum of the pips at the ends of the line of play is divisible by five. 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 if the sum is divisible by three; in Fives and Threes, they score if the sum is divisible by three or five. SUD Inc.