The croupier then spins a ball around a wheel in the opposite direction to the spin of the roulette wheel itself. In the game, players can choose to bet on a single number, different groupings of numbers, the colors red or black, whether the number is odd or even, or whether the numbers are high (19-36) or low (1 -18). Roulette is a casino game named after the French word meaning wheel. But have you ever wondered how that wheel actually works? It turns out there’s more to it than meets the eye! What is roulette? Roulette is one of the most popular casino games in the world, enjoyed by millions of players every year. The game is simple to understand and easy to play, with the result being determined by a spinning wheel.