Sometimes when people play roulette at the online casino, they wonder whether they should select the American roulette game or the online roulette version that is the European game. Each of these games are fun to play and each can be found as part of the online roulette offerings. The American game of roulette has an extra slot which is the “OO” slot. This means that there is one more slot that you can bet on, and it actually makes the odds of winning slightly less likely than the European wheel does. Now, with the European online roulette game at the online casino, the numbers go from 1-36 and then there is one zero. Certainly, players can elect the online roulette or mobile roulette game that they want to play and can enjoy the game on their computer or mobile device.