Home Slots Jackpots Promotions FAQ
10,000+ Slots

Cluster Pay Slot: Casino for Grid Slots and Their Paytables

Spin the reels on the biggest selection of online slots. New games added every week.

Popular Games

Top-rated slots handpicked by our players

Top Games

Our most played games this week

Exclusive Games

Titles available only at our casino

High RTP Games

Best return-to-player slots

Welcome Offer

100% up to €500 + 200 Free Spins

New players only. Min. deposit required. Wagering requirements apply. 18+.

Claim Bonus
Clusterpay Welcome Bonus

Four lines to find in any cluster paytable

Minimum cluster size

Five in Reactoonz, Jammin' Jars and Bonanza Billion; three in Moon Princess and Rise of Olympus; nine in Aloha! Cluster Pays. The smaller the minimum, the more often small wins arrive and the less each one is worth. A three-symbol minimum on a five-by-five grid means something pays on most spins.

Top cluster tier

The paytable stops counting at some size, often fifteen or more, and pays the same for anything larger. That tier is the game's version of five-of-a-kind on the top symbol, and its value tells you where the big base-game wins sit. In Jammin' Jars a cluster of 25 or more of the top symbol pays the highest fixed amount before jar multipliers are applied.

What charges the meter

Many cluster games keep a meter that fills as symbols are removed and releases a feature at set points. Reactoonz needs 25 removed symbols per charge and has four features on the way to Gargantoon. Moon Princess fills a meter by symbol type and awards free spins at a full grid clear. The paytable gives the exact count, which tells you how long a chain has to run before anything extra happens.

The wild rule

Cluster wilds do more than substitute. In Jammin' Jars the jar wild carries a multiplier that rises by one each time it joins a win and moves one space after each cascade. In Reactoonz the Gargantoon is a three-by-three wild that splits into two-by-two and then one-by-one wilds as cascades continue. In Bonanza Billion multiplier symbols sit outside clusters and combine at the end of the chain. The wild rule is where volatility is set.

Features that charge the grid

The three games below show the meter idea at three levels of complexity, and they are the ones new players at Cluster Pay Slot are pointed to first.

Game

Studio

Grid

Meter

Top feature

RTP (default)

Reactoonz

Play'n GO

7 x 7

Quantum meter, 25 symbols per charge

Gargantoon 3 x 3 wild

96.51%

Jammin' Jars

Push Gaming

8 x 8

Rainbow feature on non-winning spins

Jar wilds with growing multipliers

96.83%

Moon Princess

Play'n GO

5 x 5

Symbol meters per princess

Free spins after a full clear

96.5%

Reactoonz rewards long chains: nothing extra happens until the meter charges, so a spin that clears one cluster and stops is worth only that cluster. Jammin' Jars rewards jar placement: a jar in the middle of a busy grid can sit inside several clusters in one chain. Moon Princess rewards clearing: the grid is small enough that a full clear happens, and that is where its bonus lives.

Volatility in cluster games

Cluster games are often assumed to be gentle because they pay often. Some are, some are not, and the paytable tells you which. Three markers:

  • Minimum cluster of three and a small grid means frequent wins and a lower ceiling. Moon Princess and Rise of Olympus sit here.
  • Multiplier wilds that move or stack mean a high ceiling and long quiet stretches. Jammin' Jars, with a 20,000x maximum, and Jammin' Jars 2 at 50,000x, sit here.
  • Meter-released features sit between: steady small wins, with the big result depending on how many charges a chain delivers. Reactoonz, with a 4,570x maximum, is the reference.

Cluster Pay Slot prints the maximum win and a volatility band on every game page so the three markers can be checked in seconds.

Cluster, scatter and ways: three formats side by side

Format

What pays

Position matters?

Cascades?

Examples

Cluster pays

Touching blocks of matching symbols

Yes, must be adjacent

Yes, in all lobby titles

Reactoonz, Jammin' Jars, Bonanza Billion

Scatter pays

Enough matching symbols anywhere on the grid

No

Yes

Sweet Bonanza, Gates of Olympus

Ways

Matching symbols on adjacent reels from the left

Reel order, not row

Sometimes

Bonanza, Book Of Cats Megaways

The middle row is the one to watch. Sweet Bonanza and Gates of Olympus look like cluster games and cascade like them, but eight scattered symbols pay while five touching ones may not. Cluster Pay Slot keeps scatter-pays titles on their own shelf so the paytable you learned on one does not mislead you on the other.

Worked example: the Reactoonz paytable

Open Reactoonz in demo at Cluster Pay Slot and tap the paytable. The four lines appear in this order.

  1. Cluster sizes. Each symbol lists payouts for clusters of 5, 6, 7, 8, 9, 10 to 11, 12 to 14 and 15 or more. The top symbol's fifteen-plus value is the largest fixed payout in the game.
  2. Quantum meter. "Winning symbols charge the Quantum Leap meter. Every 25 symbols charge one feature." Four features are listed: Implosion, Incision, Demolition, Alteration, each explained in a line.
  3. Gargantoon. "When all four features are charged, Gargantoon appears as a 3 x 3 wild, then splits into two 2 x 2 wilds, then nine 1 x 1 wilds." That is the game's top feature and the reason long chains matter.
  4. Fluctuation and Giantoonz. Two smaller rules: a random symbol that turns into wilds on a win, and matching two-by-two blocks that pay double.

Those four lines take two minutes and give you the game's shape: frequent small clusters, a meter that carries across spins, and one large feature at the end of a long chain. Compare the same four lines in Jammin' Jars and the shape is different: no meter, a moving multiplier wild, and a rainbow feature on losing spins.

Three more grids, read the same way

Jammin' Jars (Push Gaming)

Minimum cluster five on an eight-by-eight grid. Top tier is 25 or more symbols. No meter; the jar wild is the feature. Each jar starts at 1x, rises by one every time it joins a win, moves one space after each cascade, and three jars on screen trigger free spins in which the multipliers are kept. Maximum win 20,000x.

Moon Princess (Play'n GO)

Minimum cluster three on a five-by-five grid. Three princess meters fill by symbol type and each release a power that clears, transforms or adds wilds. A full clear of the grid pays a bonus and opens free spins. The small grid means the top tier is reached by clearing rather than by stacking.

Bonanza Billion (BGaming)

Minimum cluster five on a cascading grid. Multiplier symbols do not join clusters; they stay on screen through the chain and are added together at the end and applied to the total. The line to find is the one stating how multipliers combine, because it decides whether a long chain with several multiplier symbols is worth a little or a lot.

Common misreadings

  • Counting diagonals. Symbols must touch on a side. A diagonal neighbour is not in the cluster.
  • Expecting the meter to reset. In Reactoonz it carries across spins until it fires. A quiet spin still adds to it.
  • Treating scatter pays as cluster pays. Eight scattered symbols pay in Sweet Bonanza and pay nothing in Reactoonz.
  • Reading the top tier as a jackpot. It is a fixed payout for a large cluster, multiplied by whatever wilds are on the grid, not a separate prize.

Bankroll by paytable type

The paytable type sets the bankroll, and Cluster Pay Slot lists a stake floor on every game page derived from it.

  • Small grid, three-symbol minimum (Moon Princess, Rise of Olympus): wins on most spins, moderate ceiling. One hundred stakes is comfortable.
  • Meter-driven features (Reactoonz, Reactoonz 2): steady base game, big result depends on chain length. Two hundred stakes covers the quiet stretches between charged meters.
  • Moving multiplier wilds (Jammin' Jars, Jammin' Jars 2): long quiet runs, very high ceiling. Three to five hundred stakes is the floor.
  • Multiplier symbols that combine (Bonanza Billion): mid-range; two hundred stakes.

Bonuses and wagering

Promotions at Cluster Pay Slot show their wagering requirement, game weighting and stake cap on the offer page. Grid games count in full toward wagering unless the page says otherwise. Because a chain of cascades can move a bonus balance in seconds, the stake cap is the line to read before opening Jammin' Jars with bonus funds. Free spin awards are tied to a named game at a fixed stake, and their winnings carry the wagering of the offer. Cashback, where offered, is calculated on net losses for the stated period, with its own terms beside it.

Cashier

Balances are in EUR. Visa, Mastercard, Skrill, Neteller, Trustly and paysafecard fund the account and are credited on confirmation. Withdrawals return to cards, e-wallets or bank transfer after identity and address verification, with e-wallets released first; paysafecard is deposit-only. A clear document uploaded at sign-up means the first withdrawal is not held for checks.

  • Visa and Mastercard. Deposits and withdrawals.
  • Skrill and Neteller. Fastest withdrawals once verified.
  • Trustly. Direct bank payments.
  • paysafecard. Prepaid deposits only.

Phone play

The lobby runs in a phone browser without an app, and square grids fit portrait screens with the meter beside them. The paytable opens from the menu icon inside every game, so the four lines are readable on the phone before the first spin. Stake controls sit behind the same icon; confirm the stake before you play. Balance, bonus progress and limits follow the login.

Safer play

Cluster Pay Slot is for adults of legal gambling age. Deposit limits, loss limits, session reminders, time-outs and self-exclusion are in account settings; a lower limit applies at once and a higher one after a cooling-off period. Cascades make a session feel shorter than it is, and a session reminder is the answer. Help outside the site is available from Gamblers Anonymous (https://www.gamblersanonymous.org).

Support

The help centre at Cluster Pay Slot is built around the paytable questions above: what a meter line means, whether a wild counts toward the minimum cluster, how a multiplier symbol combines at the end of a chain. Verification, withdrawals, limits and bonus terms have their own pages. The support team is reached by chat or contact form from the account menu, and account matters are discussed only with the verified holder.

Frequently asked questions

What is the minimum cluster in a cluster pay slot?

Usually five touching symbols. Moon Princess and Rise of Olympus use three; Aloha! Cluster Pays uses nine.

Where do I find the meter rule?

In the paytable, under the feature description. Reactoonz states 25 symbols per charge.

Are cluster games low volatility?

Not all. Moving multiplier wilds, as in Jammin' Jars, make a cluster game as volatile as any line slot.

Is Gates of Olympus a cluster pay slot?

No. It pays for matching symbols anywhere on the grid, which is scatter pays.

Can I read the paytable in demo?

Yes. Every game opens in demo mode with the full paytable, no account needed.

Does a wild count toward the minimum cluster?

Yes, in every game in the lobby. A wild joins any adjacent cluster and counts as one of its symbols.

What currency does Cluster Pay Slot use?

EUR for accounts, deposits and withdrawals.

Open a game, find the four lines in its paytable, then play fifty spins in demo and watch which line mattered most. Cluster Pay Slot updates each game page when a studio changes a rule.