Cluster Pays Slots Explained: Best 5 + Full List

Best Cluster Pays Slots (Highest RTP/Payouts) + Feature Explained

Last updated: September 5, 2022

Nine times out of ten, to get you a win per line, paying symbols must appear on the reels in strict order. There are often two conditions must be met:

  • they have to form some pattern (called payline)

  • moreover, often only paying symbols from the left to the right are deemed an eligible win (though there are a small portion of win both ways slots)

The Cluster pays feature is very different in that sense:

  • there is no predetermined pattern (payline) needed to get you a win

  • there is no “from the left to the right order” limitation

The only thing you need is that some number of symbols (usually 5-6) appear anywhere on the reels adjacently. To be deemed as “adjacent symbols”, symbols must be connected with their both 2 angles (2 angles form one whole side so it is fair to say that symbols must be connected by their sides, just one angle is not enough).

Anyway, let’s take a look at the slots list and discuss how it works further in detail.

Best Paying (RTP) Slots with 0 Paylines

(Players from United States are welcome)

Elite of Evil: Portal of Gold Online Slot Logo
RTP: 97.5% (Great!)
Max win: x5,000
Paylines: 0
Candy Burst Online Slot Logo
RTP: 97.0% (Good)
Max win: x15,000
Paylines: 0
Jammin' Jars Online Slot Logo
RTP: 96.8% (Good)
Max win: x20,000
Paylines: 0
Candy Bonanza Online Slot Logo
RTP: 96.7% (Good)
Max win: x25,000
Paylines: 0
Supermarket Spree Online Slot Logo
RTP: 96.7% (Good)
Max win: x25,000
Paylines: 0
Groundhog Harvest Online Slot Logo
RTP: 96.7% (Good)
Max win: x50,000
Paylines: 0
Magic Oak Online Slot Logo
RTP: 96.7% (Good)
Max win: x62,500
Paylines: 0
Fa Cai Shen Deluxe Online Slot Logo
RTP: 96.7% (Good)
Max win: x1,000
Paylines: 0
Spirit of the River Online Slot Logo
RTP: 96.7% (Good)
Max win: x5,000
Paylines: 0
Hot Hot Halloween Online Slot Logo
RTP: 96.7% (Good)
Max win: x25,000
Paylines: 0
Thor Infinity Reels Online Slot Logo
RTP: 96.6% (Good)
Max win: x6,055
Paylines: 0
Hypernova Infinity Reels Online Slot Logo
RTP: 96.6% (Good)
Max win: x2,000
Paylines: 0
Rich Wilde and the Tome of Madness Online Slot Logo
RTP: 96.5% (Good)
Max win: x2,000
Paylines: 0
Kluster Krystals Megaclusters Online Slot Logo
RTP: 96.5% (Good)
Max win: x9,921
Paylines: 0
Hellcatraz Online Slot Logo
RTP: 96.5% (Good)
Max win: x51,843
Paylines: 0
Giza Infinity Reels Online Slot Logo
RTP: 96.5% (Good)
Max win: x10,000
Paylines: 0
Let It Snow Online Slot Logo
RTP: 96.4% (Good)
Max win: x7,400
Paylines: 0
Cash Compass Online Slot Logo
RTP: 96.4% (Good)
Max win: x7,400
Paylines: 0
Astro Legends: Lyra and Erion Online Slot Logo
RTP: 96.4% (Good)
Max win: x15,000
Paylines: 0
Frutz Online Slot Logo
RTP: 96.4% (Good)
Max win: x10,000
Paylines: 0
Christmas Tree Online Slot Logo
RTP: 96.4% (Good)
Max win: x25,000
Paylines: 0
Wanted dead or a Wild Online Slot Logo
RTP: 96.4% (Good)
Max win: x12,500
Paylines: 0
Aztec Twist Online Slot Logo
RTP: 96.4% (Good)
Max win: x6,800
Paylines: 0
Cubes Online Slot Logo
RTP: 96.4% (Good)
Max win: x3,167
Paylines: 0
Elemento Online Slot Logo
RTP: 96.3% (Good)
Max win: x16,000
Paylines: 0
Cash Quest Online Slot Logo
RTP: 96.3% (Good)
Max win: x7,500
Paylines: 0
Pirates: Smugglers Paradise Online Slot Logo
RTP: 96.3% (Good)
Max win: x1,243
Paylines: 0
Brazil Bomba Online Slot Logo
RTP: 96.3% (Good)
Max win: x8,975
Paylines: 0
Rocket Reels Online Slot Logo
RTP: 96.3% (Good)
Max win: x10,000
Paylines: 0
Cubes 2 Online Slot Logo
RTP: 96.3% (Good)
Max win: x10,500
Paylines: 0
Butterfly Lovers Online Slot Logo
RTP: 96.3% (Good)
Max win: x1,600
Paylines: 0
Lucky Strike Online Slot Logo
RTP: 96.3% (Good)
Max win: x3,000
Paylines: 0
Power of Gods Valhalla Online Slot Logo
RTP: 96.2% (Good)
Max win: x2,145
Paylines: 0
Nero's Fortune Online Slot Logo
RTP: 96.2% (Good)
Max win: x8,168
Paylines: 0
Magic Stars 9 Online Slot Logo
RTP: 96.2% (Good)
Max win: x10,500
Paylines: 0
Wild Candy Online Slot Logo
RTP: 96.2% (Good)
Max win: x500
Paylines: 0
Viking Runes Online Slot Logo
RTP: 96.2% (Good)
Max win: x25,000
Paylines: 0
Raccoon Tales Online Slot Logo
RTP: 96.2% (Good)
Max win: x2,286
Paylines: 0
Pirates 2 Mutiny Online Slot Logo
RTP: 96.2% (Good)
Max win: x4,400
Paylines: 0
Stack Em Online Slot Logo
RTP: 96.2% (Good)
Max win: x10,000
Paylines: 0
Hop n Pop Online Slot Logo
RTP: 96.2% (Good)
Max win: x12,500
Paylines: 0
Golden Glyph Online Slot Logo
RTP: 96.2% (Good)
Max win: x13,185
Paylines: 0
Ghost Glyph Online Slot Logo
RTP: 96.2% (Good)
Max win: x2,270
Paylines: 0
Odin Infinity Reels Megaways Online Slot Logo
RTP: 96.2% (Good)
Max win: x20,000
Paylines: 0
Treasure Heroes Online Slot Logo
RTP: 96.1% (Good)
Max win: x1,925
Paylines: 0
Wild Drops Online Slot Logo
RTP: 96.1% (Good)
Max win: x4,400
Paylines: 0
Tower Tumble Online Slot Logo
RTP: 96.1% (Good)
Max win: x5,150
Paylines: 0
TNT Tumble Online Slot Logo
RTP: 96.1% (Good)
Max win: x12,278
Paylines: 0

Full list of Cluster pays slots

How exactly Cluster pays works

Let’s take a look at what exactly the word “adjacent symbols” may mean.

Any symbols can be connected (be adjacent) with each other in basically either of these 2 ways:

  • Either by one angle

None

  • Or by two angles or the whole side

None

Why am I bringing up all that stuff? Because the Cluster pays feature requires symbols to be connected only by both angles (the whole side) to be considered as an eligible cluster. Just one angle connection is not going to be enough.

I hope now it is crystal clear how the feature works.

What’s special about Cluster pays slots

None

  • It usually takes minimum 5 adjacent symbols appearing anywhere on the reels to form a winning combination. However, there is no consistency across the board of software providers, so, for example, Netent’s Aloha! requires minimum 9 symbols to get you a win.

  • Cluster pays slots are always modern games (2016+), nice looking and well implemented as a result.

  • Cluster slots basically pay both ways unlike the majority of online slots that pay from the left to the right.

  • Moreover, there is no limitation where the symbols must appear, so it can be even in the middle of the layout or anywhere else. The only rule, as we have already discussed, they must be connected by 2 angles.

  • The majority of Cluster pays slots do also implement Cascading reels feature, which definitely brings much more fun to the table.

  • The Buy bonus game feature is something that you can get fairly often in Cluster pays slots as well.

Best 5 Cluster pay slots of all time

Aloha! (Netent)

None

play Aloha for real money

I guess everybody agrees that x10,000 win slot with low Volatility level at the same time is a rare thing to have (Volatility has been estimated by NEtent itself by the way). Other than that, exactly this slot has given a start to Cluster pays feature (and now it is NEtent’s registered trademark).

Paylines: Cluster RTP: 96.42% Volatility: Low Free spins: Yes Multiplier: No

Maximum possible win: x10,000 (of your stake) Cluster Symbols required: 9

Sweet Bonanza (Pragmatic)

None

play Sweet Bonanza for real money

Sweet Bonanza is a product of Pragmatic Play company. It has decent RTP, looks really well, and, what is more important, allows players to win very thrilling x21,100 of your total bet.

Paylines: Cluster RTP: 96.51% Volatility: Medium-high Free spins: Yes Multiplier: Yes

Maximum possible win: x21,100 (of your stake) Cluster Symbols required: 8

Reactoonz (Playngo)

None

play Reactoonz for real money

Reactoonz is a Playngo hit. It is a well-balanced game in terms of both RTP and maximum possible win. However, please keep in mind that RTP of all Playngo slots may be set at 5 different levels so you are supposed to check it in each online casino separately (here is an article how to do it).

Paylines: Cluster RTP: 96% Volatility: High Free spins: No Multiplier: Yes

Maximum possible win: x4,750 (of your stake) Cluster Symbols required: 4-5

full review

Golden Glyph (Quickspin)

None

play Golden Glyph for real money

Golden Glyph is an amazingly looking Quickspin product, which is one of the leaders in the industry. It requires only 5 clustered symbols to form a winning combination which is a bit lower than on average.

Paylines: Cluster RTP: 96.19% Volatility: Medium Free spins: Yes Multiplier: No

Maximum possible win: x13,185 (of your stake) Cluster Symbols required: 5

full review

Pirates 2 Mutiny (Yggdrasil)

None

play Pirates 2 Mutiny for real money

Pirates 2 Mutiny is a Yggdrasil game (this company is my top 2 favorite software provider after Netent). It has a decent maximum possible win of x4,400 of your stake, and High volatility level at the same time. Its RTP is a bit lower than on average, that’s why it is ending the rating.

Paylines: Cluster RTP: 96.2% Volatility: High Free spins: Yes Multiplier: Yes

Maximum possible win: x4,400 (of your stake) Cluster Symbols required: 7

full review

Cluster pays feature’s impact on RTP, Volatility and Winning hit frequency

Those 3 parameters are truly the most important ones when it comes to online slot’s characteristics. Let’s see how RTP, Volatility and Hit frequency interact with the Cluster pays feature.

Cluster pays feature’s impact on RTP

There is no causation between those two. However, Cluster pays slots are newer ones so their RTP tends to be rather decent.

Cluster pays feature’s impact on Volatility

Cluster pays slots are known for their sometimes even huge wins. Hence, the volatility level of such games is naturally going to be rather high.

Cluster pays feature’s impact on Winning hit frequency

As a result of high volatility you have to be ready for a bit lower hit frequency than on average on the market (on average it is around 20-30%).

Some other interesting facts about Cluster pays

  • In some games (like Reactoonz), if 4 symbols form a square it is already enough to get you a win (instead of 5-7 which are required normally). On top of that such a winning got multiplied.

  • Netent is the best software provider (in my humble opinion) that has got Cluster pays slots in its portfolio. On top of that some other leaders on the market produce Cluster pays games, such as, Yggdrasil, Pragmatic, Playngo.

  • Also Netent has first introduced the Cluster pays feature to the market with its Aloha slot. So Netent is a pioneer here.

  • Cluster pays slots can be considered as Megaways slots by their spirit, because both groups basically pay any ways. Though technically they are not called Megaways as a rule of thumb.

  • I have never come across a Cluster pays slot with network progressive jackpot at the same time.

List of Cluster Pays slots

Most players are more accustomed to understanding the standard video slot mechanics. It requires collecting 3 or more of the same symbols on the lines built into the machine. The player spins the reels (there can be 3, 4 or 5) and hopes for a winning combination to appear on the screen. For many years, there has been a trend towards the development of mechanics through variation in the structure of slots. Providers have realized that in slot machines with 6 and more reels it is not appropriate to use the Lines mechanics. This, in turn, has become another reason to improve the payout system.

Cluster Pays mechanics were first introduced by NetEnt. The slot machine Aloha! Cluster Pays was the most quoted slot machine among players in 2016. Users returned to the game again and again to enjoy its process. They were attracted by the innovative approach of the online slot, which no longer had the usual paylines. In addition, very often models with this structure used more attractive bonus features and prizes.

Other providers, in turn, noticed the growing demand for such games and purchased the rights to use Cluster Pays mechanics from NetEnt. Currently, more than 500 variants have already been released. You're sure to find one that you like in every way.

How to play Cluster Pays slots

The mechanics of Cluster Pays to differ significantly from other known mechanics. In general, players comment that it is difficult to understand. Until they get a lot of experience using slots with this system, these games seem to have little appeal to them. The difficulty in using these non-linear slots is imaginary. It lies only in not understanding how the reels work. Otherwise, it's the same as in traditional titles.

In slots with pay per line, the whole bet is calculated based on the value per line. The spin bet corresponds to the amount bet per line multiplied by their number. In Cluster Pays mechanics, the player bets on the outcome. Such denominations are more profitable from the point of view of financial investment. With a smaller amount, the player gets all the same chances for a successful outcome of the round that is given by the standard mechanics. Thus it turns out that the player is required to decide on the size of the bet. No strategies, no calculations on the possible outcome - it all depends on luck.

How to win playing Cluster Pays slots

Cluster Pays are mechanics in which identical symbols must touch at least one side of the image horizontally or vertically to form a winning combination. Diagonally adjacent symbols are not counted. For more valuable payment on the playing field, it is necessary to collect as many symbols as possible. Often it is a group of 4-6 characters. Such a group may be located anywhere on the playing field. The cost and value of each symbol are described in the payout table.

This mechanic is attractive because it introduces a surprise effect to the game. It is impossible to guess in advance the outcome of a round, but it is generally possible to assume. To understand the approximate frequency of winning combinations, it is sufficient to know the volatility of the chosen model. In titles with Low volatility, clusters will be formed quite often, but the payouts will be lower than in games with High volatility. The choice of games of different variance levels is huge, so there are more and more fans of Cluster Pays mechanics.

Apart from the volatility, pay attention to the RTP of the slot machine. The higher it is, the better for you. This parameter allows you to understand whether the model algorithm pays well. And payouts, by the way, can form incredibly large ones. For example, in 2021 Habanero introduced Calaveras Explosivas, a game with an RTP of 96.79% and a multiplier of x500,000. The winning potential of this cluster slot surpasses many traditional machines. You too can try to win this amount at any time. The main thing is not to forget the rules of responsible gaming.

Conclusion

Cluster pays slots are very nice in general so there are almost only advantages to be discovered with two insignificant disadvantages.

pros:

cons:

  • it might be hard to keep track whether you win or not

  • not too many offers on the market (though it is only in comparison since there are dozens of them available)