Mechanic index
Browse games by mechanic
Start with the underlying pay system—from fixed paylines to cascades and cluster evaluation—then compare how individual games implement it.
Cascades and tumbles
A cascade or tumble removes winning symbols and fills the open positions before evaluating the same paid round again. Some games add multipliers, expand the grid or preserve marked cells through that sequence. The label alone does not explain when the sequence ends, so each review identifies the trigger, reset point and any feature-specific variation from the base rule.
Cluster pays
Cluster-pay games evaluate touching groups or count matching symbols across a grid rather than following conventional paylines. Adjacency rules, minimum group size and symbol removal can differ between titles. SlotReviewHub documents the exact sourced condition so readers can distinguish true adjacent clusters from broader scatter-pay or Pay Anywhere systems.
Collection systems
Collection systems track defined symbols, values or character states across part of a feature. Some counters reset every round, while others persist until a bonus ends or a threshold is reached. Reviews in this category identify what is collected, when the state resets and what the collected value changes without suggesting that progress predicts a profitable outcome.
Fixed paylines
Fixed-payline games evaluate matching symbols along a predetermined set of paths, commonly from the leftmost reel. The number of lines does not by itself describe hit frequency or return. Our reviews identify the published line structure, symbol direction and feature exceptions, then separate those rules from unsupported claims about likely outcomes.
Ways and Megaways
Ways systems evaluate adjacent matching symbols without requiring one drawn payline, while Megaways games can vary the number of symbol positions on each reel. The maximum advertised number of ways may not be available on every spin. Reviews in this category explain how reel height, cascades and feature modifiers change the evaluated combinations.