Despite the fact that roulette has existed for not the first century, only three main varieties of this game can still be found in a casino-the names of which are given for some reason according to the geographical principle. In addition to a classic European roulette, in modern online casinos you can find French and American roulette. All three types of games differ, first of all, not only by the rules, but also by the House Edge indicator — the so -called casino advantage. It largely depends on this indicator whether the player can make a profit from playing a roulette in a long -term game session. For example, in a European roulette, this figure is 2, 7%. But the American online roulette is a real record holder in terms of the advantage of the casino: in this game, due to two “neutral” sectors Zero, the House Edge indicator reaches almost a record 5 percent percent.