The roulette wheel is spun in one direction, and a little ball is spent spinning around inside the wheel in the opposite direction. Eventually, as the roulette wheel slows down, the ball comes to rest in one of the little numbered pockets. That is the winning roulette number! You win at roulette if you bet on that number or on a group that includes the winning number.

For example, if you bet on a single number, you can win a jackpot of $350 on a $10 bet if you win, but you are not likely to win very often. If you bet on all the red numbers, you have a good chance to win pretty regularly, but you'll get "only" a $10 payout on your $10 bet. Not that doubling your money is such a terrible thing, it's just that it's not a huge jackpot either.

There are two main types of bets: Inside Bets and Outside Bets. Inside Bets are placed inside the betting grid on the roulette table. These are bets on a single number or on a small group of up to six numbers, and they pay out higher odds. Outside Bets are bets that are placed outside of the betting grid; they incorporate larger groups of twelve or eighteen numbers so the payout odds are naturally lower.

Some online roulette games also allow special bets called Call Bets and Neighbour Bets. These are bets on groups of numbers based on their position on the roulette wheel, as opposed to their position on the roulette table.

You may place more than one bet in the same game of roulette. You could, for example, wager $10 on an outside bet and $2 on an inside bet and make a Call Bet as well. The possibilities are endless, and the choice, of course, is entirely up to you, but placing multiple bets can be an integral part of your roulette strategy that adds enormously to the excitement of playing roulette online.

American Roulette is the only online roulette game that has both a single 0 and a double 00 on the roulette wheel.

European Roulette and European Roulette Gold are played with single-zero roulette wheels. European Roulette allows Neighbour Bets, and European Roulette Gold allows both Neighbour Bets and Call Bets.

French Roulette and French Roulette Gold also have single-zero roulette wheels and also have Call Bets and Neighbour Bets. These games also have a special rule called La Partage. Under this rule, if you make an even-money bet and the roulette ball lands on 0, you lose only half your bet instead of your entire bet.

Roulette Royale is online roulette with a progressive jackpot that is constantly growing and can be worth hundreds of thousands of dollars, pounds, Euros, or kroners. If the same number hits five times in a row, you win the progressive roulette jackpot.

Premier Roulette is European Roulette with the most advanced graphics and special features, including a choice of roulette wheels and roulette tables in a range of colours and designs.

Multi-Wheel European Roulette Gold allows you to spin up to eight online roulette wheels at once. More roulette wheels means more roulette excitement and more chances to win.

Multi-Player Roulette allows up to five players to play European Roulette together. You can observe each other's betting patterns, cheer each other's wins, and chat amongst yourselves between spins.