A casino is an establishment for certain types of gambling. These establishments may be located in the form of large, luxurious resorts, small card rooms, or even on cruise ships. Some casinos offer other forms of entertainment as well, such as live entertainment, concerts, and sports. Some casinos also serve food and drink.

Despite the many differences between them, all casinos share a basic model. They make money by imposing a built in statistical advantage on each game that they offer. This advantage can be as low as two percent, but it adds up over the millions of bets that patrons place.

Successful casinos generate billions of dollars each year for their owners, investors and Native American tribes, while state and local governments reap casino revenues in the form of taxes and fees. They also employ a variety of security measures to prevent cheating and theft. Security cameras are commonplace, and some casinos employ catwalks that allow surveillance personnel to look directly down on games from above, through one-way glass.

While some casinos focus on maximizing profit by offering free drinks and stage shows, most place a high value on customer service. They encourage patrons to spend more by offering perks such as comped travel packages and hotel rooms, discounted buffets and show tickets, and by allowing gamblers to change tables or machines as often as they like. Critics argue that the economic benefits of a casino are offset by the cost of treating problem gambling and lost productivity by addicted gamblers.