Slot Mechanics
Browse the systems that define how slot games produce and evaluate wins. Each mechanic page explains how it works and lists games that use it.
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Megaclusters Megaclusters is a Big Time Gaming cluster system where winning symbols split into smaller symbols, expanding the effective grid during a single spin.
- Scatter Pays
Scatter Pays counts matching symbols anywhere on the grid; reaching the required total, commonly 8 or more, pays regardless of position or adjacency.
- Both Ways Pays
Both Ways Pays evaluates every combination twice, from the leftmost and from the rightmost reel, so the same grid produces wins in two directions.
- Adjacent Pays
Adjacent Pays awards combinations of matching symbols on neighbouring reels, in many games starting from any reel instead of only the leftmost one.
- Megaways
Megaways is a licensed reel system where each reel shows a random number of symbols per spin, changing the ways count on every single spin.
- Ways to Win
Ways to Win slots drop fixed lines and pay when matching symbols land on adjacent reels, whatever row they occupy, producing 243, 1,024 or more ways.
- Paylines
Paylines are fixed patterns across the reels; a win requires matching symbols to land on one of them, usually from the leftmost reel.
- Tumble & Cascading Reels
Tumble and Cascading Reels remove winning symbols and replace them with new ones, allowing multiple consecutive wins from a single paid round.
- Pay Anywhere
Pay Anywhere slots award wins when enough matching symbols appear anywhere on the grid, without fixed paylines or adjacent-symbol requirements.
- Cluster Pays
Cluster Pays slots award wins for connected groups of matching symbols, replacing traditional paylines with grid-based cluster combinations.
