Online casinos, also called virtual casinos or Internet casinos, are versions of traditional casinos, but are operated through the Internet. This is a popular form of online gambling. Online casinos offer the same casino games as traditional casinos, and have many benefits for players. In addition to a great gaming experience, online casinos also allow players to win real money without leaving their homes.

Casinos are equipped with elaborate surveillance systems that enable security personnel to keep watch on all of their patrons at any given time. These cameras cover every table, doorway, window, and other visible part of the casino. Video feeds can be reviewed later to identify suspicious patrons. Similarly, computer chips determine the payouts of slot machines.

The commercial casino industry has seen significant growth in recent decades. The combination of the experience economy and the legalization of gambling activities has led to record-breaking revenue figures. In 2021, the combined market size for the casino and online gambling industries is estimated to hit 231 billion U.S. dollars. However, the popularity of online gambling has led to challenges for brick-and-mortar casinos.

While baccarat remains the casino staple, there are countless other games that are popular in casinos. Other popular dice games include Keno and Craps. Other games that are popular in casinos include Casino War and other niche games.