What is a Slot?

A position or time for an aircraft to take off or land, as scheduled by an airport or air traffic control.

A slot is a dynamic placeholder that either waits for content (passive slot) or calls out for it (active slot). It can be filled by using a scenario, action, targeter, or renderer.


While in the past, slots only had one pay line that paid out when all symbols stopped on the same reel, today’s video games offer a wide variety of ways to win. These include multiple pay lines, special wild and scatter symbols, and bonus games that can lead to additional payouts or unlock a new game with a different set of reels and paylines.

The number of symbols that appear on a physical reel is limited, so software designers created virtual reels that hold more symbols than are physically possible. When the RNG algorithm generates a number, it corresponds to a position on the virtual reel, which in turn determines whether the physical reel will stop at a blank space or one that contains a paying symbol.

It’s important to understand that ‘due’ payouts don’t exist, so it’s best not to spend a lot of time playing a machine you believe is due for a hit. Each spin is random, so there’s no way to predict if or when a specific machine will hit. One good slot strategy is to look for machines that display the amount of their last cashout next to their credits; this is a good indication that they’re giving out winning combinations often.