A casino is a gambling establishment where patrons wager money on games of chance. Casinos usually feature a wide variety of gambling games, including slot machines, blackjack, craps, roulette and baccarat. Although casinos often add a variety of luxury features such as restaurants, musical shows and lighted fountains to attract customers, they would not exist without games of chance. The billions of dollars in profits generated by these games provide the primary source of revenue for casinos.

A defining element of the modern casino is its security. Although the majority of casino patrons are responsible gamblers, some are not. In addition to a staff of casino employees, a variety of sophisticated surveillance systems monitor the activities of casino patrons. These cameras, which are mounted in the ceiling or on the walls of casino rooms, offer a high-tech eye-in-the-sky view that can be adjusted to focus on suspicious patrons by casino security workers in a separate room filled with banks of monitors.

Many casinos also have a staff of trained casino floor managers who are on hand to help patrons with problems. In addition, some casinos have counseling services available to those who believe they may be a problem gambler.

While most casino marketers rely on celebrity endorsements and flashy advertising to draw in players, it is increasingly important for casinos to emphasize the positive reviews of satisfied guests. Displaying testimonials and pictures of recent winners on their websites and social media is a simple way to reinforce the value of a casino experience.