Mechanics
14 mechanicsBrowse slots by game mechanic. Mechanics define how a slot plays -- from Megaways and Cluster Pays to Cascading Reels and Hold & Win. If a specific mechanic is what keeps you engaged, start here to find every slot that uses it.
Bonus Buy Battle A competitive bonus format where players or outcomes are pitted against each other, with the best result winning a larger prize pool or multiplier. Cascading Reels Winning symbols disappear and new ones fall into place, potentially triggering consecutive wins from a single spin. Also known as tumbling or avalanche reels. Cascading Wins Winning symbols are removed from the grid and replaced by new symbols falling from above, potentially creating consecutive wins from a single spin. Cluster Pays Wins are formed by groups of matching symbols touching horizontally or vertically, replacing traditional paylines with a grid-based win system. Common in games with 6x6 or 7x7 layouts. Expanding / Infinity Reels Reels that grow taller with each win or add entirely new reels, expanding the play area with no fixed limit. The Infinity Reels variant, pioneered by ReelPlay, can theoretically extend forever. Hold & Spin Triggered when a set of special symbols lands on the reels. Those symbols lock in place while the remaining reels re-spin, giving players a chance to collect more of the triggering symbols for bigger prizes. Megaways A licensed mechanic from Big Time Gaming where the number of symbols on each reel changes randomly with every spin, generating anywhere from a few hundred to up to 117,649 ways to win. Merge Up When matching symbols land adjacent to each other, they merge into a single higher-value symbol and shift upward on the grid. Each merge opens space for new symbols to drop in, potentially triggering chain reactions of consecutive merges from a single spin. The process continues until no more merges are possible, with the final symbol values determining the payout. Respin A mechanic where specific symbols or winning combinations lock in place while the remaining reels respin, offering additional chances to build bigger wins. Scatter Pays Symbols pay based on count anywhere on the grid rather than landing on specific paylines or in clusters. Typically, 8 or more matching symbols in a single spin trigger a win regardless of their positions. Paying symbols are removed after each win, allowing new symbols to cascade into the empty spaces for potential consecutive wins from one spin. Special Bets Optional side bets or ante bets that modify the base game, such as increasing the chance of triggering bonuses, activating extra paylines, or adding random features for an additional cost per spin. Super Spins A bonus mode that awards a set of enhanced free spins with boosted mechanics such as locked multipliers, expanding wilds, or guaranteed feature triggers on every spin. Volatility Switch A toggle or selector that lets players choose between different volatility levels within the same game, typically affecting free spins modes with varying risk and reward profiles. Ways-to-Win Instead of fixed paylines, wins are counted by matching symbols appearing on adjacent reels from left to right. Common formats include 243, 1024, or 3125 ways, offering more frequent win combinations.