Just as there are different variants of poker, you’ll find a wide array of slot games in most brick-and-mortar casinos.
While slots have had a presence in physical casinos for decades and they’ve been available in a lot of reputable online casinos since their inception, slot machines are a relatively new phenomenon compared to some other casino games like roulette, which preceded the first slot machine by several hundred years. Many contemporary gamblers take it for granted they’ll have the chance to play slot machine games when they visit a brick-and-mortar casino, or they try their hand in a play- or real-money online casino.