What Is a Slot?


A slot is a thin opening or groove in something. You put letters and postcards through a slot at the post office. It’s also used to describe a slot machine, which is a type of gambling machine that uses a spinning reel.

Payback Percentage & Loose Slots

A payback percentage is an important part of any casino game, but it’s not always easy to find out. Most slots don’t advertise their payout percentage, so you’ll have to do some research to find it out. You can often see a slot’s payout percentage on the rules or information page for the game itself, or as a list of games on an online casino or game developer’s website.

Payback percentage refers to how much money a slot machine returns to players over the course of a lifetime. It’s calculated based on the number of numbers assigned to symbols and blanks on a computerized slot machine. The more numbers assigned to symbols, the higher the payback percentage will be. Conversely, fewer numbers assigned to blanks and cherries will yield a lower payback percentage.

Symbols and Ways to Win

Almost every slot game has a symbol or a series of symbols that activates the paytable. These may be fruit, Liberty Bells, bars, or lucky 7s, but they could also be the logo of the game, or a series of letters and numbers.

The paytable will provide detailed information on each symbol and how much a player can win when they hit three, four, or five of them. It’ll also highlight any bonus symbols or special features that the game has, like Wilds and Scatters. These symbols will trigger the game’s bonus feature, usually with a certain amount of free spins or credits.


A slot machine’s jackpot is its biggest prize, which is awarded whenever three or more matching symbols appear on the reels. A jackpot is typically in credits, which are equal to the denomination of the machine. Depending on the slot machine, this can vary from one credit to several thousand credits, or even up to a million credits.

Return to Player

A Return to Player (RTP) percentage is another important piece of information to keep an eye out for in a slot machine’s paytable. It tells you how much a typical winning combination will return to the player, and it helps you decide whether or not this machine is best for recreational players or more of a gambler who wants to wait for a bigger jackpot to come along.

Paytables are permanently displayed on most slots, but they can also be displayed through an interactive series of images available through touchscreens. Some of these displays will display all possible winning combinations, while others will only display the highest jackpots, due to space limitations.


A bonus symbol on a slot machine is one that triggers a bonus feature, such as a random number generator. Normally, this will award players with free spins or credits, but it can also be a multiplier that increases the value of the prizes you’ll receive.