Roullete (pronounced rou-lo-t) is a casino game played on a circular table with a numbered wheel and a black or red ball. Players place bets on either a single number, various groupings of numbers, the color red or black, whether the numbers are high (19-36) or low (1-18), or if they are odd or even. The average return is 36 37 displaystyle frac 3637 of the player’s bet, independent of the type of bet chosen.

A Roulette wheel is a solid wooden disk, slightly convex in shape with metal partitions, called separators or frets, around its edge. The compartments, called pockets by roulette croupiers, are alternately painted in red and black, and numbered nonconsecutively from 1 to 36; on European wheels a green pocket carries the sign 0.

While roulette has one of the highest win-to-stake ratios in the casino, it attracts few players compared with games such as slot machines, video poker, blackjack or craps. However, it continues to be popular in Europe, and is a mainstay at Monte Carlo. In the United States, it has a smaller following than the game of baccarat, but is still a mainstay in many casinos and gambling houses.