What do 0 and 00 mean in roulette?

The numbers 0 and 00 play a crucial role in roulette as they impact the game's American roulette, there are both a single zero (0) and a double zero (00), making a total of 38 pockets. The addition of the double zero raises the house edge to around 5.26%, which decreases the likelihood of players winning.

Moreover, the inclusion of the double zero in the American variant allows for a special bet called the Basket bet, which covers 5 numbers: 0, 00, 1, 2, and 3. This bet offers a payout of 6:1 with odds of 13.20%. Considering these factors, European roulette tends to be more favourable for players due to its lower house edge, resulting in better overall chances.