A casino, also known as a gambling house or a gaming hall, is an establishment that offers various types of gambling. It is a very popular form of entertainment, and it is found worldwide. Casinos can be owned and operated by individuals, corporations, or even Native American tribes. They usually have dining and entertainment options as well. Some casinos are even combined with hotels.

There are three general categories of casino games: gaming machines, table games, and random number games. Gaming machines are operated by a computer or another mechanical device and do not require the intervention of casino employees. Table games such as blackjack and craps involve one or more players competing against the casino. Random number games, such as roulette and baccarat, are based on the selection of numbers from a spinning wheel or other source.

Casinos generate billions of dollars in profits each year for their owners, shareholders, and operators. They also provide jobs and tax revenues for local governments. A successful casino is a major tourist attraction and contributes to the economy of the city or region in which it is located. In addition, casinos are often marketed as luxurious and exciting places to visit. In an effort to attract patrons, they offer a variety of incentives to gamblers, from free spectacular entertainment and meals to reduced-fare transportation and hotel rooms. These perks, which are called comps, help casinos to maintain their competitive edge in the marketplace.