Cluster Pays

Cluster pays is a slot mechanic where wins are formed by groups of matching symbols touching horizontally or vertically, rather than landing on traditional paylines. Typically, 5+ matching symbols in a cluster are needed for a payout, with larger clusters paying more. Popular cluster pays slots include Reactoonz, Aloha Cluster Pays, and Sugar Rush. This mechanic often combines with cascading wins, where winning clusters are removed and new symbols fall in. Grid sizes vary from 5x5 to 8x8 or larger. Cluster pays slots tend to be medium-to-high volatility with exciting chain reaction potential.