In a cluster pays slot, you win when a group of matching symbols touches horizontally or vertically, instead of lining up from left to right. Pay-anywhere slots go further: matching symbols win wherever they land, touching or not.
How cluster pays works
NetEnt's Aloha! Cluster Pays, released on March 22, 2016, is the standard example. It uses a 6 by 5 grid and needs nine or more touching matching symbols to form a win.
The game has an RTP of 96.42 percent, a maximum win of 700 times the bet and a hit frequency of 21 percent, meaning roughly one spin in five produces a win. Its Sticky Win Re-Spins hold a winning cluster in place while the other positions spin again, giving the cluster a chance to grow.
The free spins use Symbol Drop and give 9 to 12 spins for 3 to 6 scatters.
Pay-anywhere: the Sweet Bonanza contrast
Pragmatic Play's Sweet Bonanza uses a different approach. There is no need for symbols to touch: 8 to 12 or more matching symbols anywhere on the tumbling reels form a win.
Its RTP is 96.48 percent. The free spins give 10 spins for 4 to 6 scatters, and multipliers from 2x to 100x can appear during the feature.
Why the difference matters
The core distinction is adjacency. Cluster pays needs matching symbols to connect, so wins build around one group on the grid. Pay-anywhere counts every matching symbol on screen, so a scattered set of symbols can still pay.
Neither design is better; they simply feel different. Check the paytable and RTP in the game's information screen, and remember that the hit frequency and maximum win describe the game over many spins, not what the next spin will do.
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