Online real money casinos operate by offering a variety of games such as slots, blackjack, and roulette accessible through websites or apps. Players can deposit funds using various payment methods to place bets and potentially win money. These casinos use random number generators to ensure fairness and randomness in games. Winnings can be withdrawn through secure banking options provided by the casino. Players should always check the licensing and reputation of online casinos to ensure a safe and enjoyable gaming experience.