A casino, also known as a gambling house or a gaming room, is an establishment for certain types of gambling. Casinos are most often found associated with hotels, restaurants, retail shops, cruise ships and other tourist attractions. Almost all casinos are located in the United States, but some are also located in other countries, including the Caribbean and Latin America. Various state governments regulate the number and location of casinos.

There are a wide variety of games offered by casinos, from traditional table games like blackjack and roulette to slot machines, video poker, and more. Some casinos offer live gaming as well, with dealers and other players appearing in real-time via a streaming feed from an actual casino floor or studio.

Security is a major concern for casino owners, because gamblers can be tempted to cheat or steal from the house. To prevent these activities, most casinos employ a variety of security measures. These can include the use of cameras, the presence of uniformed staff, and rules of conduct for patrons.

Some casinos also offer a variety of non-gambling activities, such as sports betting and race tracks. These are usually separate from the main casino and have their own entrances. In some cases, they may even have their own restaurants and bars. Regardless of the activity, all casinos have one thing in common: the house always wins. The house edge is the profit that the casino expects to make on each bet, and it varies by game.