Even though most beginner players believe Roulette is a classic casino game, Bitcoin roulette comes in different variations. The most popular variations are American, French, and European. The American game variant is perhaps more popular in terms of what the general public faces. This is the enormous influence of the American media in the world. Even in movies, Roulette tables are of the American setup. What distinguishes this variation from the European or French is the presence of an extra zero slot, which makes the total number of slots in this Bitcoin game 37.