Despite the fact that different versions of roulette may use different wheels and have a different number of zeros, the gameplay process itself remains unchanged. For each bet, a fixed payout coefficient is set in advance, which does not change during the game. Bets can cover both individual numbers and small groups of numbers (inside bets), as well as larger groups of numbers or colours (outside bets). The roulette wheel consists of alternating red and black sectors, as well as one or more green zeros (depending on the roulette variation). These elements form the basis of the game that the player interacts with when playing free roulette and testing bets in the simulator.

In European roulette, the probability of winning is 18 out of 37, or about 48.6%. The probability of winning is 6 in 37, or about 16.2%. This bet reduces risk compared to the street but remains an inside bet. The probability ProberBet Casino of winning in European roulette is 4 in 37, or approximately 10.8%. The probability of winning in European roulette is 2 in 37, or approximately 5.4%.

The extra pocket doesn’t add gameplay, it just costs players more over time. One zero pocket gives the house a 2.7% edge, which makes it the best-odds option among RNG wheel games. Those differences affect both the odds and how the game feels to play. It falls outside the red/black and odd/even outcomes, so any bet covering those groups loses when zero hits.