Chance-based games still remain banned in many states, including Sikkim, Assam, Telangana, Arunachal Pradesh, and Tamil Nadu. In 2024, Telangana enacted a ban on online gambling and betting. Three years later, Andhra Pradesh followed suit, and the following year, Tamil Nadu amended its laws to ban online gaming.

Native American gaming comprises casinos, bingo halls, and other gambling operations on Indian reservations or other tribal lands in the United States. Because these areas have tribal sovereignty, states have limited ability to forbid gambling there, as codified by the Indian Gaming Regulatory Act of 1988.

The presence of zeros gives the house an edge. House Edge: The presence of zeros means that even if you place bets on red or black, odd or even, or other nearly 50/50 propositions, you do not have a true 50% chance of winning. The presence of zeros tilts the odds slightly in favour of the casino.

In American roulette, there is a second green pocket marked 00. Pocket number order on the roulette wheel adheres to the following clockwise sequence in most casinos: Single-zero wheel. 0-32-15-19-4-21-2-25-17-34-6-27-13-36-11-30-8-23-10-5-24-16-33-1-20-14-31-9-22-18-29-7-28-12-35-3-26.