A casino is a gambling establishment where patrons gamble on games of chance. Casinos have evolved from primitive protodice and carved six-sided dice found in the oldest archaeological sites, to a variety of gambling venues that cater to people of all ages and social classes. The modern casino may include a large number of gambling games like blackjack, roulette, poker and slot machines and can be located in a hotel, cruise ship or independent facility.

A typical casino is heavily regulated to prevent cheating, whether done by patrons in collusion or on their own. Many casinos have security cameras to monitor the actions of patrons and employees and to detect cheating or theft. Casinos may also offer free drinks to attract visitors and reward big spenders, called “comps,” with free room stays, meals, tickets to shows or limo service.

Because of the large sums of money handled in a casino, both patrons and staff are susceptible to being tempted to cheat or steal. This is why most casinos have extensive security measures, and why Las Vegas and Atlantic City are renowned for their high security and regulation.

Because casinos are businesses and not charitable organizations, they must earn money from the millions of bets placed by patrons. The built in house edge (sometimes lower than two percent) allows a casino to make money over the long haul and pay for its lavish hotels, fountains, towers and replicas of famous landmarks.