Roullete, or simply roulette, is a casino game where players bet on the outcome of a spin of a wheel. The game is popular in Europe, where it is a staple at Monte Carlo and other luxury casinos. It is also played in many other countries around the world, including the United States, where it is a favorite of high rollers. The game is easy for beginners to learn and has enough betting options to appeal to experienced players as well.

In the United States, the game of roulette has gained in popularity with the advent of Internet casinos. It is now a popular game in most major casinos and some smaller ones, as well as at land-based gaming facilities in Las Vegas and Atlantic City. Roulette is a fast-paced game that can be enjoyed by players of all skill levels.

The roulette wheel consists of a solid wooden disk slightly convex, with a number of metal compartments or pockets painted alternately red and black. Thirty-six of the pockets are numbered nonconsecutively from 1 to 36; on European wheels, an additional green pocket carries the number 0. In addition to the red and black numbers there is a second zero in American roulette.

A croupier spins the wheel and throws a ball into it. The resulting pocket determines whether the winning bets are paid out. Players can bet on a single number, various groups of numbers, odd or even, red or black, or whether the numbers are high (19-36) or low (1-18).

Unlike other casino games such as blackjack and video poker, there is no strategy that will guarantee a winning streak in roulette. Some people believe that they have discovered systems that give them an edge, but all such systems are based on luck. There are, however, some strategies that can help reduce the house edge, such as playing on your birthday or anniversary, or avoiding crowded tables. In the long run, though, there is no way to overcome the built-in house edge of a game of pure chance.