A casino is a gambling establishment offering a wide variety of games of chance. Casinos also offer other amenities, such as restaurants and live entertainment. Successful casinos take in billions of dollars each year for companies, investors, and Native American tribes. They may also pay taxes and fees to local governments. Casinos are located in massive resorts and smaller facilities, including boat and barge operations on lakes and rivers, as well as racetracks where racinos (racetrack casinos) operate.

Many casinos feature bright, gaudy decor that is meant to stimulate the senses and make players feel excited and happy. They often use the color red, which is thought to be a mood enhancer. They may offer free food and drink to keep gamblers happy, but these amenities do not reduce the house edge. They also provide comps, or complimentary items, to big spenders, which can include hotel rooms, shows, and even airline tickets.

Casinos are also prone to theft by both patrons and staff. To counter this, they have extensive security measures. These may include manned guard stations, cameras, and electronic surveillance. They may also use chips instead of real money, which makes it harder for gamblers to track their winnings or losses.

The majority of casino gamblers are middle-aged and older adults with above average incomes. They are likely to be married with children and live in upper-middle class neighborhoods. They like to play table games and slots, and visit the casino for special events, such as musical performances and stand-up comedy.