Roulette is a casino game that most players are familiar with. Played in almost every casino around the world, the large black and red wheel attracts high rollers willing to risk their money to cash in the big wins. At online casinos, players will find a number of different versions of the game. Most online roulette games are either based on the European (French version) or the American version of the game. Roulette Pro is a high quality online casino game based on the classic European version. In this game, the roulette wheel only has a single green space reserved for the 0 and is extremely popular with players around the world.