The feature works in a fairly simple way. One or more reels carry over to the next spin and remain in place while all other reels spin like they would in any other round. The nature of the sticky reel depends greatly on the active mode you’re currently in.
The sticky reels will trigger after the player has fulfilled some specific requirements. This leads the feature to trigger automatically without requiring any extra effort from the player. In most cases, the sticky reels will trigger if there are one or more special symbols on them during free spins or other bonus modes.
They can come with a large array of features. One of the most common ones is when the reels remain sticky for the duration of another feature such as free spins. Other times, the sticky reels may remain sticky for a certain number of spins or their active counter may be refreshed every time you hit a specific symbol. They can even contain a bet or prize multiplier that applies as long as the reel remains in play.
There really aren’t any disadvantages when you’re playing with sticky reels. If we had to mention one then it would be that they eventually go away and may not remain active for the whole duration of a feature. On the bright side, your winnings can skyrocket when the slot you’re playing offers them as a feature.
There are 3 main variations:
Another different variation that is seen rarely is when the sticky reel multiplies after each successive winning spin. It may gradually fill up the entire board with sticky reels.