A casino, also called a gaming house or a gambling establishment, is an institution where people can play games of chance for money. Most casinos offer a wide variety of games, including poker, blackjack, and craps. Some even have restaurants and bars. Often, casinos are combined with hotels and resorts. In the United States, many casinos are located in cities such as Las Vegas, Reno, and Atlantic City. Others are scattered across the country, often near state lines or in remote areas.

Most casino games involve some element of skill, but the overall result of a game is determined primarily by chance, with some exceptions. For example, the house has a mathematical advantage in most table games (such as roulette and baccarat), but a slight disadvantage in others (such as slot machines and poker). This edge is known as the “house edge.” Casinos are designed around noise, light, and excitement to encourage gamblers.

Some casinos focus on high-stakes gamblers and provide special rooms and amenities. In some cases, these high rollers generate a significant portion of the profits for the casinos. These players are referred to as VIPs, and their play is rated and tracked by casino employees. In exchange for their play, casinos give these players free hotel rooms, meals, show tickets, and even limo service and airline tickets. This is known as comping.

Something about gambling seems to encourage people to cheat or steal. As a result, casinos invest a great deal of time and money on security. This includes the use of security cameras, employee escorts, and other measures.