A casino is an establishment where gamblers can wager real money. It offers gambling games and has a pit boss who oversees fair play. The games are programmed in a way that favours the house. Without this edge, a casino would lose money. This edge is also known as the house edge or the vig.
In a casino, the games offered are categorized as slots, table games, video poker, and poker games. Specialty games may be available exclusively in a casino, such as 3D slots, progressive slots, and board games. Some casinos have arcades, while others offer a number of video poker games.
Casinos also employ elaborate surveillance systems, which allow security guards to keep an eye on the entire casino at any one time. Video feeds are recorded and can be analyzed after an incident. In addition to security guards, they also employ pit bosses and dealers, who monitor table games for cheating and betting patterns.
The house edge in a casino is the difference between true odds and what the casino pays out. This varies by game, but is usually expressed as a percentage. A casino with a low house edge can make as little as 2% profit while one with a high house edge can generate profits of 15 to 40%.