Casinos are places where people play games of chance. They offer a variety of popular games, including roulette, blackjack, craps, keno, baccarat, and poker.

They make money from the house edge on every game they offer, which is a theoretical advantage the house holds over the players. The house edge is a mathematical guarantee of the casino’s expected gross profit, and it is very rare for a casino to lose money on its games.

These advantages allow them to offer a variety of incentives for patrons. These incentives may include free transportation, hotel rooms, free drinks and cigarettes while gambling, special meals, and other inducements.

There are also security measures at casinos to protect gamblers and keep the casino running smoothly. These include elaborate surveillance systems that watch everything on the casino floor at once. Cameras are positioned in the ceiling of the casino, changing windows and doorways and can be directed by security personnel to focus on suspicious patrons.

Many games at casinos are regulated to ensure fairness and accuracy, which is important to the integrity of the casino. For example, slot machines are monitored by computer chips that calculate payouts at random.

In addition to making money, casinos often use gambling to attract new residents and improve local employment. This boosts local economies by attracting skilled labor to the area and reducing unemployment rates.

Casinos employ a marketing strategy that helps them target customers with messages and offers that will appeal to their interests. This framework, known as the “jobs to be done” model, helps marketers understand what the customer is looking for in a place and then adjust their messaging, marketing, and offerings to satisfy those needs.