These roulette systems can be used with any form of roulette, although it is always best to play the ones with the best odds for the player. For example, double zero roulette obviously has worse odds than single zero roulette. It is also worth being aware that many virtual casinos and real world casinos pay back 50% of a losing outside bet if a zero comes in. The FOBT’s do not do this, nor does double zero roulette. Some casinos, particularly in America, do not do this for single zero roulette, so check before playing.
The various types of bonus roulette found on FOBT’s (Key Bet, Extra Bet etc.) can alter the outcome of these systems due to extra positions on the wheel. These games require different playing methods, most of which are mentioned on their corresponding pages.