A casino is an establishment for gambling. In the United States, casinos are generally located in cities with large populations, particularly those with tourist attractions such as Las Vegas and Atlantic City. The term may also refer to a smaller, privately operated facility. In either case, a casino typically offers games of chance and is overseen by a gaming commission. In addition to casino games, some offer a wide range of other entertainment options.

Something about the presence of large amounts of money in a relatively small space encourages people to cheat and steal, whether in collusion or independently. As a result, most casinos employ a significant amount of security. This includes sophisticated video surveillance systems that cover the entire floor and have a high-tech “eye in the sky” that can be adjusted to focus on suspicious patrons or specific machines. In addition, a large percentage of casino employees are trained in the detection of cheating and other violations.

In addition, many casinos offer rewards programs that give patrons complimentary items or other benefits for their play. Some also offer food and beverages in their facilities. Despite the positive economic impact of casino gambling, some studies indicate that compulsive gamblers offset any potential profits by diverting resources away from other forms of entertainment; and that the cost of treating problem gambling generally outweighs any gains that the casino might make. Nevertheless, the number of casinos continues to rise. In the United States, some are on American Indian reservations and are thus not subject to state antigambling laws, while others have sprung up in cities such as Las Vegas and Atlantic City.