In Craps, winning or losing depends on a variety of different possible outcomes on any roll of the two dice. The two dice can produce many different number combinations; some can be made several ways, others only one way. For example, two dice can roll the number 6 as follows: 5/1, 4/2, 3/3, 2/4 and 1/5. But the number 2 can only be rolled one way: 1/1.

The casino game of Craps is played with a set of two perfectly balanced dice with each die having six white dots numbered 1 through 6. The game is played by tossing the dice from one of the short ends of the table to the other (make sure that both die hit the opposite side wall of the table) Payoffs are made based on the number combination displayed when the dice come to rest.

Craps is the well known casino game of dice, it is developed from Hazard, a game from the 14th century, that was once popular between high-stakes patrons in English gambling houses. The name "Craps" comes from the nickname "Crabs", which is a roll of 1-1 in Hazard. The modern game of Craps was developed by black Mississippi riverboat gamblers in the 19th century, borrowing heavily from the rules of Hazard. Craps is fast, exciting and immensely popular, and the game has long been a favorite target of anti-gambling forces. Craps undoubtedly is responsible for many fortunes changing hands at dice tables in glitzy casinos, back rooms and alleys. It may even be guilty of something a little more serious: the Great Chicago Fire of 1871. Popular history names Mrs. O'Leary's cow as the culprit, having kicked over a lantern in the barn, sparking the conflagration which destroyed much of Chicago. A Chicago businessman named Louis Cohn claimed, years later, to have knocked over the lantern himself during an especially exciting game of Craps, then laid the blame on the heifer. He was particularly remorseful, he said, because "I was winning." At first glance, Craps can be intimidating. There are numerous bets that can be made, and some of the terminology seems complicated, but the small amount of effort it takes to learn the game is well worth it. Many casino patrons consider Craps to be the game. Nothing in a casino generates as much excitement as a hot roll at the Craps tables. The game of craps has a long, colorful history and is still going strong.

The progress of a game of Craps is marked with a plastic "puck", which is black on one side (OFF) and white on the other (ON) The first roll of the dice in a round of Craps is called the come-out roll. The puck is turned black side up (OFF) during the come-out roll. The basic opening bet in Craps, placed just before the come-out roll, is called a Pass Line bet. The Pass Line bet wins immediately if the come-out roll is 7 or 11 (natural), and loses when the come-out roll is "Craps" (2, 3, or 12) If a 4, 5, 6, 8, 9, or 10 is rolled on the come-out roll, that number becomes the point. The puck is placed on the Craps layout over the box displaying the numbered rolled as the point with the white side up (ON) The shooter now keeps rolling the dice until either the point is repeated or a 7 is rolled to end the round. If the point repeats first, the Pass Line bet wins. If a 7 is rolled first (seven out), the pass line bet loses.