Roulette is a game of chance. It uses a spinning wheel with 37 or 38 numbered pockets. The roulette casino wheel spins in one way and the ball is sent in another way.
Before turning the steering wheel, the player bets where the ball will land. There are many different ways to do this, and the chances of winning and paying are different.
The first recognizable roulette game was played at the Paris Casino in 1796. The game is designed to give the casino an advantage-in other words, for a long time, players should lose more money than they win. This is how the casino can afford it, there are many smart people wearing suits standing around and saying "good night, sir, bond".