What is a Casino?

A casino is a building where people can gamble and play games of chance. It is a place for people to go and play a variety of different games, including slots, poker, roulette, blackjack, and baccarat.

Casinos make money by offering their customers games of chance with a built in advantage, called the house edge, on all their games. This edge can be very small (less than two percent), but over time and with millions of bets, it can earn the casino enough money to build large hotels, fountains, and towers.


The security of a casino begins at the floor level with dealers and table managers, who watch the tables and patrons closely and keep an eye out for cheating or any suspicious betting patterns. It also includes high-tech surveillance systems that include cameras in the ceiling that change windows and doorways, and surveillance workers in a separate room with banks of monitors who look down on the casino’s floor to catch any criminals or shady patrons before they commit crimes.

Other casinos use elaborate computerized video monitoring systems to oversee the payouts of slot machines and track the amounts bet by casino players. These electronic systems ensure that the casino doesn’t pay out more than it should, and they can quickly discover any abnormalities in the machine’s expected results.


Casinos often give out free merchandise and services to their customers in the form of comps. These may include hotel rooms, tickets to shows, and limo service. These are given to “good” players who spend a lot of money at the casino or play slots for a long period of time. These comps can be worth a lot of money, so it’s important to check the terms and conditions of any bonus offered by your casino.