This sport mechanic, often present in video slots, includes symbols locking in place on the reels after a profitable spin or when particular standards are met. Subsequent spins might then add extra matching symbols to the locked set, typically rising the payout or triggering bonus options. A standard instance is a sport the place matching symbols adjoining to at least one one other lock, creating a bigger cluster and awarding a re-spin.
This function enhances participant engagement by introducing a component of anticipation and the potential for escalating wins. It provides a layer of technique past merely spinning the reels, as gamers think about the potential of linked symbols and the ensuing rewards. Originating within the digital period of slot machines, this mechanic has turn out to be a preferred addition, contributing to the evolution of sport design inside the on line casino business.