The Surrender Options: In Online Casino Roulette, this rule applies to outside bets which pay even money only, such as odd or even, red or black, and high or low. If the ball lands on the “0” or the”00” you only lose half your bet. Since it is the “0” and the 00 which account for the high house edge, this can affects the house edge considerably. Although the payoffs for outside bets may not be as good, playing on a table with the ‘surrender' rule will help improve your odds greatly.
The single 0 Option: The roulette table that has only one “0” is called the European Roulette. It offers a more attractive house edge from the point of view of players. If you find a European table to play on, you can reduce the house edge from 5.26% to 2.7%.
En Prison Rule: The third rule of the game of roulette is the 'En Prison' Rule. This happens when the ball drops on 0 and is applicable to the situation when a player makes an outside bets. In this situation, the player does not lose the bet, but instead the bet remains on the board and is said to be 'in prison'. The bet is then decided with the following spin. The money is returned to the player, with no extra winnings if the previous bet wins. If it loses, the money is swept away and if 0 appears again the bet remains 'in prison'.