Cluster Pays Slots 2026
Cluster pays slots ditch traditional left-to-right paylines, rewarding you instead for matching symbols connected horizontally or vertically anywhere on the grid.
Games like Reactoonz, Sugar Rush and Jammin’ Jars are some of the best cluster pays slots in the UK. This guide will explain how the mechanic works and which cluster pay slots deliver the highest payouts.
Best Cluster Pays Slots and Where to Play Them July 2026
Our top 10 cluster pays slots bring a mix of different grid size, cascade speed and volatility, but all offer quality gameplay. Here’s a quick summary of the most popular slots with cluster pays, who makes it and where to play it, so you can jump straight in.
| Cluster Pays Slot | Provider | Where to Play |
|---|---|---|
Reactoonz 2 | Play’n Go | Play at Mr Vegas |
| Le Fisherman | Hacksaw Gaming | Play at Unibet |
| Pirots 3 | ELK Studios | Play at Lottoland |
| Candy Glyph | Quickspin | Play Now at Casumo |
| Jammin’ Jars | Push Gaming | Play Now at BetMGM |
| Sugar Rush | Pragmatic Play | Play Now at Grosvenor |
| Rich Wilde and the Tome of Dead | Play’n Go | Play Now at Betway |
| Fortune of Olympus | Pragmatic Play | Play Now at 32Red |
| Honey Rush | Play’n Go | Play Now at LeoVegas |
| Aloha Cluster Pays | NetEnt | Play Now at Play OJO |
What are Cluster Pays Slots and How Do They Work?
Cluster pays is one of the most popular slot features in the UK today because it offers a move away from traditional fixed lines. Instead of matching symbols across a set number of paylines, you’re looking for a minimum number of identical symbols connected either vertically or horizontally, usually five or more depending on the game.
Land that cluster and it explodes, clearing space for new symbols and setting off the chain of features that makes this mechanic so different from a standard payline slot.
Cluster Pays Grid Size
Most cluster pays slots trade the classic 5×3 layout for something bigger. Reactoonz runs on a 7×7 grid, while Jammin’ Jars pushes it further to 8×8, giving symbols far more room to connect and far more ways for a single spin to spiral into something huge.
The bigger the grid, the more surface area there is for clusters to form, which is part of why these games can feel so much busier than a traditional slot.
Cascading Reels
Once a cluster pays out, the winning symbols don’t just sit there. They disappear, and new symbols drop in to fill the gaps, often called tumbling or avalanche wins depending on the studio. This is the mechanic that lets one spin turn into a run of consecutive payouts, since every cascade has a chance of forming a fresh cluster on its own
Multipliers and Chain Reactions
Cascades on their own are exciting enough, but most cluster pays slots stack multipliers on top. Every consecutive win in a chain can bump the multiplier up a notch, so a modest first cluster can end up worth several times more by the time the cascades finally stop.
Some games, like Sugar Rush, attach the multiplier to a specific square on the grid that grows every time another wins lands, which adds another layer of anticipation to every spin.
Cluster Pays v Scatter Pays v Ways to Win
These types of payout mechanics often get mixed up as they don’t use traditional paylines. However, in reality, they are very different. Here’s a quick glance table so you can tell the difference:
| Slot Type | Win Mechanic | Game Examples |
|---|---|---|
| Cluster Pays | Matching symbols connected vertically/horizontally. Often 5 or more. | Reactoonz, Sugar Rush, Jammin Jars |
| Scatter Pays | Matching symbols anywhere on the grid, no connection needed. Often 8 or more. | Sweet Bonanza, Gates of Olympus, Money Train 4 |
| Ways to Win/ Pays Anyways | Adjacent symbols across the reels from left to right in any position with no fixed lines. Often 3 or more. | White Rabbit Megaways, Gold Blitz. Bonanza |
The most common mistake is to confuse Cluster Pays with Scatter Pays. For example, the popular Sweet Bonanza slot game by Pragmatic Play gets called a Cluster Pays Slot frequently, however, it’s actually Scatter Pays.
Cluster pays slots specifically require matching symbols to be connected (in a cluster!), whereas Scatter Pay slots can be anywhere on the grid, not connected.
Cluster Pays RTP, Volatility and Payouts
Game statistics and payouts fluctuate quite a bit across cluster pays slots. Let’s take a look at our top 10 ten slots again in order of highest maximum payout potential:
| Jackpot Slot | RTP | Volatility | Max Payout |
|---|---|---|---|
| Jammin’ Jars | 96.83% | High | 20,000x |
| Le Fisherman | 96.33% | Low | 15,000x |
| Candy Glyph | 96.19% | Medium | 13,185x |
| Fortune of Olympus | 96.55% | High | 10,000x |
| Pirots 3 | 94.00% | High | 10,000x |
| Honey Rush | 96.50% | High | 9,000x |
| Reactoonz 2 | 96.51% | High | 5,083x |
| Sugar Rush | 96.50% | High | 5,000x |
| Rich Wilde and the Tome of Dead | 96.21% | Medium | 5,000x |
| Aloha Cluster Pays | 96.42% | Low | 2,000x |
Top Cluster Pays Providers
NetEnt pioneered cluster pays with the release of Aloha! Cluster Pays in 2016. However, the mechanic really took off a year later when Play’n GO put its own spin on it with Reactoonz.
The Cluster pays mechanic is now a popular feature of many slot providers, here’s a look at the key players with game examples.
Hacksaw Gaming – Le Zeus, Hand of Anubis, Le Fisherman
Relax Gaming – Cluster Tumble, Sweetopia Royale, Horror Hotel
Netent – Aloha Cluster Pays, Berryburst, Gonzo’s Gold
Play’n Go – Reactoonz, Rich Wilde and the Tome of Dead, Gigantoonz
Push Gaming – Jammin Jars, Giga Jar, Retro Verse
Best Slot Sites for Cluster Pays Slots UK
If you want to find the biggest choice of cluster pays slots online in the UK, then head to one of these top UK slot sites:
1. Unibet
Unibet has a specific ‘Cluster Pays’ category holding over 270 cluster pay slots for you to play. Just scroll down on the slots page until you find it. Here you’ll find the Pirots series, all of the ‘Le’ series by Hacksaw Gaming and the Oxygen series of games that nearly made our top 10 cluster pays slots list.
2. Betway
Mr Vegas not only offers a good variety of cluster pays slots, it also lets you filter your search on the cluster pay mechanic. Simply click on the category filter and scroll down to ‘clusterpays’ and you’ll be offered a selection of relevant games including Le Fisherman, Sugar Rush and Reactoonz.
3. PlayOJO
PlayOJO has a solid all-round selection of cluster pays slots including Aloha Cluster Pays, Cluster Tumble and Candy Jar Clusters. Search by provider or by game name and you’ll find a huge variety of cluster slots including Jammin Jars and Jammin Jars 2.
Top Cluster Pays Slots to Play Right Now
Let’s take a closer look at three of the most popular cluster pays slots in the UK and what to expect from them.
1. Reactoonz 2
A sequel to the highly successful Reactoonz slot by Play’n Go. This time, the aliens enter a new parallel universe on the same 7×7 grid, with wins formed from clusters of five or more connected symbols.
Features include the Fluctometer and Quantumeter, Electric Wilds, Energoon Wilds plus a 2x multiplier on Gargantoon wins at the highest charge level. As with the previous game, everything happens in the base game but with a higher max win of 5,083x. Read our full review and play the Reactoonz 2 free demo slot.
- 💎96.20% RTP
- 💎Low Volatility
- 💎5,083x Max Win
- 💎iGN Feature Score 9.1
2. Le Fisherman
One of the newest entries in Hacksaw’s popular “Le” series swaps Smokey the raccoon’s usual Parisian backstreets for a riverside fishing trip. Playing out on a 6×5 grid with wins from clusters of five or more matching symbols, the gameplay focuses on Golden Squares and Rainbows.
Landing a Rainbow (or the enhanced Epic Rainbow) symbol reveals coins, multipliers or collectible bonuses hidden underneath. Three separate bonus rounds offer different risk levels, and the highlight of the game is Smokey dressed as a mermaid! Read our honest review of this fun cluster pays slot and play the Le Fisherman free slot demo.
- 💎96.33% RTP
- 💎Low Volatility
- 💎15,000x Max Win
- 💎iGN Feature Score 8.8
3. Sugar Rush
Sugar Rush drops you into a candy-coated world of gummy bears and sweets, playing out on a 7×7 grid where clusters of five or more matching symbols trigger a win.
The standout feature is its Multiplier Spots: every time a symbol explodes in the same position twice, that spot gets a permanent 2x multiplier, doubling again each time it’s hit, up to 128x. During the Free Spins, the multiplier doesn’t reset so they can snowball fast. Play the Sugar Rush free slot demo and read our full review for all the sweet features.
- 💎96.50% RTP
- 💎Medium Volatility
- 💎 5,000x Max Win
- 💎iGN Feature Score 8.6
Cluster Pays Slots Pros & Cons
Cluster pays slots swap the familiar structure of paylines for a busier, more visual style of play. That trade-off comes with real upsides and real drawbacks depending on what you’re looking for in a session. Here’s a look at both:
Pros
- More Dynamic Gameplay
- Bigger Game Grids
- Multiplying Cascades
- No need to track paylines
- Room for more creative features
- Usually just need 5 matching symbols
Cons
- Long cluster chain are rare
- Low paying cascades
- Complicated features can be confusing to beginners
- Often high volatility
FAQ – Cluster Pays Slots
What is a Cluster Pays Slot?
A cluster pays slot is a type of online slot that replaces traditional paylines with a grid-based system. Instead of matching symbols along a straight line, you win by landing a cluster of five or more identical symbols connected either vertically or horizontally, anywhere on the grid.
What is the highest RTP cluster pays slot?
Among the most popular titles, Jammin’ Jars by Push Gaming leads the way with a 96.83% RTP, just ahead of Fortune of Olympus (96.55%) and Reactoonz (96.51%). RTP can vary by casino, so it’s always worth checking the in-game paytable to confirm which version you’re playing.
What is the highest paying cluster pays slot?
Among our list of the best cluster pays slots, Jammin’ Jars by Push Gaming has the highest max win potential at 20,000x. It edges out Le Fisherman (15,000x) and Candy Glyph (13,185x).
What is the difference between Cluster Pays and Scatter Pays?
Cluster pays and scatter pays both ditch traditional paylines, but they form winning combinations differently. Cluster pays slots require matching symbols to be physically connected – touching either vertically or horizontally – to count as a cluster. Scatter pays slots are less strict: matching symbols just need to appear anywhere on the grid, with no requirement to touch each other, as long as you land enough of them. Reactoonz and Jammin’ Jars are cluster pays; Sweet Bonanza and Money Train 4 are scatter pays.
Are cluster pays slots better than traditional payline slots?
Neither is objectively better, it comes down to individual player preference. Cluster pays slots offer a busier, more visual style of play with cascading wins and bigger grids, while payline slots are simpler to follow and easier for beginners to learn. Players who enjoy watching wins chain together tend to prefer clusters; those who like a straightforward, familiar format tend to stick with paylines.