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What Is a Slot?


A slot is a machine that pays out winnings based on a random number generator. This system uses a number set that ranges from hundreds in a traditional slot to tens of thousands in a multi-line video slot.

A payout percentage is a term used in the gambling industry to describe the average amount that a slot machine will return to a player in the form of winnings, compared to how much the player has wagered. This term is also called the Return to Player (RTP) percentage, and it’s important for players to know what it means when they’re choosing a slot game.

Payout percentages are often posted on the rules or information page for a particular slot game. In addition, many online casinos and game developers post their payout percentages on their websites.


A slot’s symbols include a variety of different objects, from fruit to bars or lucky 7s. Some machines also have bonus rounds that can trigger when a specific combination of reel symbols is hit.

Service light

A service light is a feature on most slot machines that allows the casino to notify staff of faults in the machine. It’s generally located at the top of a slot machine to make it easy for casino employees to spot. It’s turned on by activating a service button on the player console, or it can enable itself if a hand pay jackpot is won or the slot develops a service fault.

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