A casino is a place where people can play games of chance and other forms of entertainment, including live music and dance. It may also offer food and drink. Casinos can be found in cities, towns, and states that allow gambling, or they can be standalone facilities. Some casinos are owned by governments, private companies, or Native American tribes, while others are run by independent operators.

Like all businesses in a capitalist society, casinos exist to make money. They rake in billions of dollars each year for the owners, investors, and corporations that own them, as well as for state and local governments that collect taxes and fees on their operations. The best way to avoid gambling problems is to balance it with other leisure activities and only gamble with money you can afford to lose.

Casinos employ a variety of security measures to deter crime and cheating. On the casino floor, employees watch patrons to spot blatant attempts at cheating, such as palming or marking cards, and note suspicious betting patterns. Elaborate surveillance systems provide a high-tech eye-in-the-sky, with cameras that monitor every table, change window and doorway and can be adjusted to focus on suspect patrons by security personnel in a separate room filled with banks of monitors.

Some casinos attract high rollers who spend a lot of money. To reward them, they offer comps—free goods or services, such as hotel rooms, meals, tickets to shows, and even limo service and airline flights. Some high rollers even have their own special casino suites.