This recreation mechanic, often present in video slots, includes symbols locking in place on the reels after a successful spin or when particular standards are met. Subsequent spins might then add extra matching symbols to the locked set, typically growing the payout or triggering bonus options. A standard instance is a recreation the place matching symbols adjoining to 1 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 take into account the potential for linked symbols and the ensuing rewards. Originating within the digital period of slot machines, this mechanic has turn into a well-liked addition, contributing to the evolution of recreation design inside the on line casino trade.