Key takeaways
- Usually five or more touching symbols.
- Played on a square grid.
- Often with cascades.
- Different from pays-anywhere.
In shortOn a cluster pays machine, a win is a group of matching symbols that touch horizontally or vertically, usually five or more.
How it works
- Symbols fill a grid, often six by six or seven by seven.
- Five or more matching symbols touching form a cluster.
- The cluster pays and vanishes.
- New symbols drop in and can form more clusters.
Cluster against pays-anywhere
| System | Needs |
|---|---|
| Cluster pays | Symbols touching |
| Pays anywhere | A count of symbols, anywhere |
Gates of Olympus and Sweet Bonanza are pays-anywhere, not cluster.
Volatility
Usually medium to high, with large wins from big clusters and multipliers.
Elsewhere on the site: UK slot machine rules, Jackpots, Free spins features and Fluffy Favourites vs Fishin' Frenzy.
Reading a cluster paytable
Prizes are listed by cluster size: 5, 6, 7 and so on, often up to 15 or more. The steps are steep, so one large cluster is worth far more than two small ones.
Where the idea came from
Match-three puzzle games. Cluster slots borrow their grid and their cascades, and replace skill with chance.
Keep reading: Video slot machines, UK slot machine rules, Gates of Olympus vs Sweet Bonanza and Three-reel vs five-reel slot machines.
Slot figures are developers' published defaults, each confirmed against two sources; the version at your casino can differ. UK land-based stake and prize limits and online rule dates were checked against Gambling Commission and licensing authority sources on 6 October 2026. History follows commonly cited accounts. Offer terms dated 5 October 2026. How we check. 18+. Free help: 0808 8020 133 or safer gambling.
Frequently asked questions
What is cluster pays?
Wins from touching symbols.
How many symbols?
Usually five or more.
Same as pays anywhere?
No.
Are they volatile?
Often.