A casino is an establishment for certain types of gambling. These casinos may be operated by a private company, a government or in a partnership. Casinos can be found worldwide and are often combined with hotels, restaurants, retail shops, entertainment venues and other tourist attractions. Casinos are primarily regulated by governments, and many have strict rules regarding their operations. Some have strict age restrictions, and some do not allow minors to gamble.

Most casino games have an inherent long-term house advantage, known as the house edge or vigorish. This advantage can be reduced by players employing skills, such as card counting. A small percentage of players manage to eliminate the house edge altogether, earning them comps such as free rooms, food and drinks.

There are three main categories of casino games: gaming machines, table games and random number games. Gaming machines are usually conducted by a dealer or croupier, while table games such as blackjack and craps involve competition between the players and the casino employees. Random number games are based on the selection of random numbers, either from a computer or by other means.

Located on the Mediterranean coast of Monaco, the Monte Carlo casino is a glamorous example of this type of facility. It has a reputation for high stakes fun and is frequented by those seeking luxury and glamour. There are also casinos on American Indian reservations, which are not subject to state antigambling laws. In the United States, legal casino gambling first took place in Atlantic City in 1978, and subsequently spread to other locations.