A casino, also called a gaming room or a gambling house, is a place where people can gamble. A modern casino is often a large building with various games of chance and a poker room. It can also be an entertainment center with theaters, restaurants, and bars.

In the United States, casinos are regulated by state and local laws. Some are privately owned and operated, while others are run by Native American tribes. Most states allow casino gambling, but the specific rules and regulations vary widely. Some states require age restrictions and other limitations on who may participate in casino activities.

Many US casinos offer table games, including blackjack and roulette. In addition, they often have video poker machines and slot machines. Many have a poker room where patrons can play against each other, and the casino makes its profit either by taking a percentage of each pot or charging an hourly fee. Some casinos also have sports betting and other non-gambling activities, such as shopping and dining.

A few casinos specialize in a particular game, such as craps or baccarat. Some offer traditional Far Eastern games such as sic bo, fan-tan, and pai gow. Other casinos feature a mix of games, from the familiar to the exotic. Technology has changed the way casinos operate. For example, in some casinos, chips have built-in microcircuitry that enables the casino to monitor exactly how much money is being wagered minute by minute and to alert players immediately of any statistical deviations.