A casino is a gambling establishment offering a variety of games and entertainment. Its size and quality can vary from a small, intimate building to an enormous megacasino. It can also feature hotels, restaurants, non-gambling game rooms, swimming pools, and other amenities. Its primary focus is to attract and retain customers.

Casinos make most of their money from patrons who gamble. Because of this, they employ a variety of security measures to prevent cheating and stealing, both by staff members and other patrons. These measures include a variety of cameras, both inside and outside the casino. These cameras can be adjusted by staff to focus on suspicious patrons. Security employees also keep an eye on the regular patterns of the patrons, so that they can spot any changes to these habits.

Generally, casinos offer a large number of card games and table games. In the United States, these include blackjack and roulette. The most common European games are baccarat, chemin de fer, and trente et quarante. Besides these, many casinos also have traditional Far Eastern games such as sic bo, fan-tan, and pai gow.

Casinos are a major source of revenue for some cities and regions, such as Las Vegas, Nevada. However, they are not the primary economic driver for smaller cities or rural areas. The growth of the industry is driven by a growing demand for entertainment and gambling among adults with disposable income. As the travel and tourism industries continue to expand, casinos will need to innovate and diversify their offerings in order to remain competitive.