You can always brush through the Roulette Rules since understanding the nuances of the game will eventually be of your benefit.Ī roulette wheel in the United States consists of 38 numbered slots consisting of the numbers 1 to 36, a zero, and a double zero. Before you proceed with the game, make sure you understand these subtle differences before you set out to play online roulette at a casino site. As one of the world's most popular games, roulette is also a sport with a lot of variations in terms of the table and wheel layout.