Roulette is a game of chance that has gained a lot of popularity over the years. It is played in almost every casino. The history of the exciting casino game goes back to the 17th century in France. Now it is so widespread that it is even played online. There are three main varieties of the game European, French and American. But the European one is the most popular all over the world. Even though the core rules are the same, there are a few major differences that every player should be aware of.