Craps is a dice game in which the players wager on the outcome of the roll, or a series of rolls, of a pair of dice. Players may wager money against each other (playing "street craps", also known as "shooting dice" or "rolling dice") or a bank (playing "casino craps", also known as "table craps", or often just "craps"). Since it requires little equipment, "street craps" can be played in informal settings.
Each casino may set which bets are offered and different payouts for them, though a core set of bets and payouts is typical. Players take turns rolling two dice and whoever is throwing the dice is called the "shooter". Players can bet on the various options by placing chips directly on the appropriately-marked sections of the layout, or asking the base dealer or stickman to do so, depending on which bet is being made.
While acting as the shooter, a player must have a bet on the "Pass" line or the "Don't Pass" line. "Pass" and "don’t pass" are sometimes called "Win" and "Don’t Win" or "Right" and "Wrong" bets. The game is played in rounds and these "Pass" and "Don't Pass" bets are betting on the outcome of a round. The shooter is presented with multiple dice (typically five) by the "stickman", and must choose two for the round. The remaining dice are returned to the stickman's bowl and are not used.
Each round has two phases: "come-out" and "point". To start a round, the shooter makes one or more "come-out" rolls. A come-out roll of 2, 3 or 12 is called "craps" or "crapping out", and anyone betting the Pass line loses. A come-out roll of 7 or 11 is a "natural", and the Pass line wins. The other possible numbers are the point numbers: 4, 5, 6, 8, 9, and 10. If the shooter rolls one of these numbers on the come-out roll, this establishes the "point" - to "pass" or "win", the point number must be rolled again before a seven. The dealer flips a button to the "On" side and moves it to the point number signifying the second phase of the round. If the shooter "hits" the point value again (any value of the dice that sum to the point will do; the shooter doesn't have to exactly repeat the value combination of the come-out roll) before rolling a seven, the Pass line wins and a new round starts. If the shooter rolls any seven before repeating the point number (a "seven-out"), the Pass line loses and the dice pass clockwise to the next new shooter for the next round. In all the above scenarios, whenever the Pass line wins, the Don't Pass line loses, and vice versa, with one exception: on the come-out roll, a roll of 12 will cause Pass Line bets to lose, but Don't Pass bets are pushed (or "barred"), neither winning nor losing. (The same applies to "Come" and "Don't Come" bets, discussed below.)