In a world where the concept of luck can be manipulated, casinos depend on rules and security measures to ensure that all patrons are treated fairly. Because of the large amounts of money that are handled within casino walls, both staff and patrons can be tempted to cheat or steal, either in collusion or independently. This is why casinos spend a lot of time, money and effort on security.

Some casinos focus primarily on gambling, while others are more luxurious, offering resorts and dining options. Many feature high-tech amenities, such as rooftop pools and water slides. Some also include golf courses, circus acts, fine dining, karaoke and arcades. In addition to the usual slot machines and tables, some casinos offer off-track horse betting, as well as a variety of other gambling products, including sports betting and eSports.

Casino security starts on the casino floor, where dealers keep their eyes on each patron to make sure that no blatant cheating is going on. Each table manager and pit boss has a higher-up overseeing them, watching their work and noting any patterns that might indicate cheating. Casino security cameras are located throughout the casino and are monitored by a room filled with banks of monitors.

Casinos are a major source of revenue for some states and cities. In Nevada, for example, there are 340 legal casinos and gambling establishments. Other major casino sites are in Atlantic City, New Jersey and Iowa. And casinos are now appearing on Native American reservations, which are not subject to state laws prohibiting gambling.