The shooter, or anyone wishing to bet that the shooter will win, places his bet "on the line" (in the area marked "Does Pass," "Line," or "Win" on various layouts) Anyone betting against the shooter places his bet in the area marked "Don't Pass." Anyone wishing to bet on a special contingency, such as that craps (2, 3, or 12) will or will not be thrown on the next roll, places his bet in the appropriate space on the layout; such bets are called proposition bets. The house maintains a mathematical advantage on all bets of about 1.4 percent, higher on certain layouts and special bets.

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.