Cluster Pay is a modern slot mechanic where wins are formed by landing clusters of 5 to 9 or more adjacent matching symbols, instead of following fixed paylines. This page offers a full rundown of the best games using this mechanic, along with their features and some handy playing tips.
10 Free Spins per day over ten (10) days on Wanted Dead or a Wild or Book of Ra Deluxe.
How did we rate this casino
CoinKings offers an unlimited 100% bonus, fair 35x wagering, and banking in 19 currencies, including some rare coins. The site’s easy to use, support is reliable, and while there’s room for improvement, it’s a strong pick for crypto players.
Make sure to add our exclusive bonus code before you deposit to claim the offer.
Slots count 100%, all other games 5%.
How did we rate this casino
Our rating for Bitstrike reflects its strong points like a reputable game lineup and fast crypto withdrawals, with some minor drawbacks due to the lack of filtering options when browsing games.
Offer available for the first, second, or third crypto deposit.
Cashback is calculated based on net crypto losses for the day of deposit.
Cashback is credited daily for up to seven days after a qualifying deposit.
Cashback is paid as real money with no wagering or upper cap.
How did we rate this casino
Strong selection of games and live casino from a total of seven providers. The pleasant design and good sorting features make navigation easy. Crypto deposits have no limits, and the registration process was quick and uncomplicated.
14 days to wager (within the 30-day bonus claim window)
7 days to wager free spins
The bonus is paid out in 10 installments (each installment is 20% of your original deposit).
Free spins are credited for “Wanted Dead or a Wild”.
Each 20% installment is released after wagering your original deposit 6x.
Unlocked bonus funds are instantly available for withdrawal.
How did we rate this casino
Telbet scores well for its sleek design, broad game selection, and easy crypto banking. The secure environment and blockchain transparency impress, but limited customer support and responsible gambling tools leave room for improvement. It is ideal for crypto players seeking a modern experience.
Free spins are activated in batches of 20. The first batch is available immediately after activating the bonus, and each subsequent batch can be claimed 24 hours later.
Deposits made with Neteller and Skrill are not eligible for this bonus.
Slots, scratch cards and keno count 100% toward the wagering requirement (with some exceptions). All other games count only 10%. Jackpot slots, bingo, and slingo are excluded entirely.
How did we rate this casino
A secure Anjouan-licensed casino with a wide selection of games, including a fully equipped live casino. Various bonus offers and tournaments. A relatively limited selection of cryptocurrencies, with fairly strict deposit and withdrawal limits.
Slots count 100%, table games, video poker, and live games 5%.
How did we rate this casino
FatFruit Casino stands out with its wide range of games, clean design, and fast, secure payment options. With a special crypto welcome bonus, ongoing promotions, and strong support for both crypto and fiat users, it's a reliable choice for casino players.
Instant Rakeback: Earn a percentage back on every wager, starting from your very first bet.
Daily Rakeback: Based on the previous day.
Weekly Rakeback: From Thursday to Wednesday.
Monthly Rakeback: Based on previous month.
Wagering requirements
None
Bonus validity
Depending on rakeback
From the 4th level in the loyalty program, a weekly cashback of 10% is added.
How did we rate this casino
Thrill Casino stands out for its no-wagering rakeback, fast unlimited crypto transactions, and a strong game lineup with exclusive titles. Easy navigation and helpful support make it user-friendly. Overall, Thrill earns high marks for transparency, player value, and forward-looking design.
100% up to €2,000 + 100 Free Spins (CODE: WELCOMEBONUS3)
Wagering requirements
40x bonus
50x free spins winnings
Minimum deposit
€20
Maximum bet
€5
Bonus validity (for each bonus)
7 days to activate
3 days to wager
Free spins are valid on: BGaming slots (Aloha King Elvis, Elvis Frog in Vegas, Miss Cherry Fruits, Catdiana).
Free spins winnings cap: €100 max per bonus.
Max win from bonus: 10x deposit amount, up to €2,000 per bonus.
How did we rate this casino
11 Croco earns its place among the top online casinos thanks to its impressive selection of games, user-friendly design, and strong commitment to security and fast payouts. With rewarding bonuses and support for various cryptocurrencies, 11 Croco stands out as a reliable and entertaining choice for both new and experienced players.
Valid on all slots (check the bonus terms for any exceptions)
How did we rate this casino
A strong hybrid casino with bonuses for both crypto and fiat players. An extensive game library, a large live casino, and a sportsbook. Mobile-optimized website, though the layout could be clearer.
This 160% bonus is exclusively valid for the first deposit made using BTC, BCH, ETH, LTC, XRP, DASH, XMR, or XLM.
Bonus applies only to casino slots (some slots are excluded).
How did we rate this casino
We like the wide selection of games from many providers and the bonuses available for both new and loyal players. However, the FAQ section could be more detailed, and adding a dedicated slots category would make navigation easier.
The free spins are valid for the game Gates of Olympus by Pragmatic Play.
The bonus is only valid in USDC and with the bonus code KRYPTOCASINOS.
How did we rate this casino
We highly recommend Empire.io due to its exceptional crypto team. It boasts a vast selection of slots and robust security features. The bonus offerings are also outstanding, with favorable conditions.
Free spins are available on Bonanza Billion (Bgaming).
A bonus can be accumulated with other bonuses. However, only one bonus can be wagered at a time.
How did we rate this casino
VipCasino.io earns high marks for its extensive game library, modern design, and focus on fast, secure crypto payments. With generous bonuses, a rewarding VIP program, and support for a wide range of cryptocurrencies, it stands out as a reliable and entertaining option for seasoned players seeking variety and flexibility in their online casino experience.
Winnings from the free spins are directly credited to the real balance.
How did we rate this casino
We found Jackbit excels in transparency, seamless payments, secure gameplay, easy-to-claim bonuses, and player support, making it a smart pick for both new and experienced players.
While USDT is the default, other cryptocurrencies are also eligible for the bonus.
How did we rate this casino
Crashino is a top-tier choice for casino players seeking a safe, fast, and enjoyable gaming environment. The quality of the games, bonus offers, and flexible payments make it a clear standout in the growing world of online crypto casinos.
Free Spins available on Book of Dead, Mystery Joker and Legacy of Dead (OR Aloha King Elvis, Gold Rush with Johnny Cash, Lady Wolf Moon, Fruit Million, Lucky Lady Chance).
Slots count 100%, all other games 5%.
Bonus is also available with crypto.
How did we rate this casino
SpinsUP impressed us with its huge game variety, rewarding loyalty program, and fast crypto-friendly payments. The mobile platform is especially smooth and easy to use.
You must complete the registration and verification process, including a valid email or phone number, to qualify for this bonus.
You must select the desired bonus during the deposit process.
There is a maximum withdrawal limit of $10 from winnings derived from free spins.
How did we rate this casino
BC.Game has become the leading crypto casino, outshining other major competitors. The rewards, proprietary stablecoin, welcome bonus, and game selection all stand out. And our review of BC.Game left us pleasantly surprised.
The bonus will be given in installments depending on the wager made.
Press the “Credit To Balance” button to use funds from the bonus,
Free spins are added as a set of 25 free spins per day for 4 days.
Slots contribute 100%. Table games and live dealer games do NOT contribute.
How did we rate this casino
Vave Casino offers fast payouts, all major currencies, a good bonus, and a wide range of games. Despite this, it is often overlooked, but we highly recommend it.
Free spins are credited on the Gamebeat slots: Max Miner (1st), Book of Elixir (2nd) and Odin's Tree (3rd).
How did we rate this casino
Bets.io stands out as one of our top-rated crypto casinos. It combines everything you love about Dama casinos — like a stellar game selection and rock-solid reliability — with a refreshing twist: no frustrating KYC processes and no outdated payment methods.
Metaspins is still a very young crypto casino, but it can already convince with a very modern website, a good selection of games and, above all, an excellent bonus.
Different games contribute differently to the wagering requirement.
You can activate your 10% weekly cashback, when you hit 1500 XP.
Bonus paid in real cash (no further wagering).
The cashback is paid back wager-free.
How did we rate this casino
We like Cryptorino for its anonymous setup, VPN-friendly access, and wager-free cashback. It’s smooth, crypto-focused, and offers instant withdrawals. However, it only offers live chat support, and game filtering could still be a bit more advanced.
Free spins are provided as a set of 20 per day for 10 days.
Deposits made with Skrill and Neteller do not qualify.
How did we rate this casino
At Grand Club Casino, you'll find a wide variety of games and convenient payment options without any complicated extras. The casino prioritizes quality and VIP service; you won't need to go through a KYC process. Deposits and withdrawals are simple and can be done using crypto or credit cards.
Different games contribute differently to the wagering requirement.
Bonus paid in real cash (no further wagering).
How did we rate this casino
Betpanda impressed us with its no-KYC setup, VPN access, real cash bonuses, and fast crypto withdrawals. The XP Club adds lasting rewards. While the game filters are basic, the site is smooth, secure, and delivers a strong experience for crypto-first players.
After the first deposit, you will receive 50 Free Spins every day for the next 3 days. After the Second deposit, players will receive 50 Free Spins every day for the next 2 days.
Maximum win from free spins is €50.
How did we rate this casino
Overall, CandySpinz offers a secure and exciting gaming experience with 90+ providers, fast crypto payouts, and strong bonuses. While limited filters and no demo mode are drawbacks, its responsible gaming tools and industry veteran backing make it a solid choice. Expanding crypto options could make it even better.
Free spins: 24 hours (activation), 5 days (validity)
Slots count 100% towards bonus wagering (exceptions in bonus terms and conditions).
The maximum winning from free spins is $200.
The maximum cashout from each deposit bonus is $5,000.
How did we rate this casino
Oshi Casino offers a diverse selection of games to suit all preferences and flexible deposit options in cryptocurrency and traditional currency. The platform makes it easy to play your way, and an appealing VIP program rewards loyal players with extra perks as they continue to play.
While USDT is the default, other cryptocurrencies, such as BTC, ETH, USDC and TRX, are also eligible for the bonus.
Different games contribute differently to the wagering requirement.
How did we rate this casino
Crypto-Games.io offers a strong selection of games, though the filtering system could be more advanced. It supports only the most popular cryptocurrencies, which will suit the majority of users. The limits are reasonable, KYC is not required, and it accepts players globally without issues.
Free spins are provided as a set of 20 per day for 10 days.
Deposits made with Skrill and Neteller do not qualify.
How did we rate this casino
PlaPlayZilla Casino offers a strong focus on game variety, live gaming quality, and user experience. The platform stands out with extensive slot choices, a seamless live casino, strong customer support, and a player-friendly welcome bonus. Returning players also benefit from generous ongoing promos.
Stake is internationally well known and has lots of visibility in sponsorships and media deals. This is backed by a high quality casino experience in a safe and secure environment. Stake players can choose between FIAT and crypto and have access to a global game selection. Expert Tip: If you can't access, try using a VPN. Stake is known to be highly VPN friendly, even in stricter areas.
Free Spins will be credited on Gates of Olympus (Pragmatic Play) or Wild Cash (BGaming).
Max bonus and free spins cashout apply.
How did we rate this casino
BetandPlay may not be a fully crypto-focused casino, which can entail certain drawbacks, such as a more rigorous KYC process. Despite this, our experience revealed an exceptional casino offering a strong selection of bonuses, an extensive game library, user-friendly design, and, most importantly, excellent customer service.
Betsio.com is a solid casino with a great game selection and fast crypto payouts. However, browsing through so many games can get frustrating. We liked that you can play with both dollars and Bitcoin, but an FAQ section would definitely be helpful.
Free spins are provided in batches of 20 for 10 days.
There is no cap on winnings or withdrawals.
How did we rate this casino
The casino is part of the Dama BV group, but like Rabidi casinos, its success largely depends on how well it's executed. Dailyspins is a strong example of how to get it right. It’s thoughtfully designed, provides both fiat (traditional) and crypto payment options, and includes solid bonus offers.
The selection of games at Megapari Casino, with over 100 software providers, is huge and unusual. There are also many insider tips, a variety of payment methods and transparent conditions. All in a simple design and implemented to a high standard.
Minimum deposit for free spins: 0.0016 BTC, 0.20 BCH, 0.026 ETH, 0.66 LTC, 170 ADA , 83 XRP, 40 USDT.
Max cashout is $5,000 (0.20 BTC, 25 BCH, 3.3 ETH, 82 LTC, 21000 ADA, 10000 XRP, 5000 USDT).
Maximum winnings from free spins: $200 (0.0079 BTC, 1 BCH, 0.13 ETH, 3.3 LTC, 845 ADA, 415 XRP, 200 USDT).
How did we rate this casino
A solid mix of crypto and real money payment options, though eWallets like Skrill and Neteller are missing. The bonus can be activated and cleared with crypto. The platform offers a large game selection and a high-quality live casino. Downsides: Live chat was deactivated during testing, and bonus winnings are limited.
Free spins will be awarded on Pragmatic Play or BGaming slots.
Max bonus and free spins cashout apply.
How did we rate this casino
In this Rooli Casino review, we found a lot of positive aspects. Firstly, there is a great selection of both slots and live tables available to play. Additionally, the casino has a modern and attractive design, and the site is well-organized, which is especially beneficial since most players are familiar with the structure of Dama N.V. casinos.
The rest of the bonus codes are LVL2, LVL3, and LVL4.
The minimum deposit is C$20, 0.001 BTC, 0.16 BCH, 0.015 ETH, 0.35 LTC, 315 DOGE, and 20 USDT.
Maximum win from free spins is C$50, 0.0025 BTC, 0.43 BCH, 0.04 ETH, 1 LTC, 850 DOGE, and 50 USDT (per deposit).
Free spins can be used on the Dragon's Bonanza slot by Belatra
No max cashout is attached.
How did we rate this casino
LevelUp Casino stands out with its extensive game selection, offering over 5,410 titles, and a highly attractive bonus with player-friendly conditions—especially appealing to high rollers. The intuitive user interface ensures seamless navigation, while responsive customer support adds to the overall positive experience.
For the 1st deposit, the higher deposit triggers a higher bonus amount.
How did we rate this casino
Weiss.bet Casino stands out with its clear website structure and diverse game selection. The extensive range of supported cryptocurrencies and the generous welcome bonus add to its appeal. Overall, the casino delivers a well-rounded experience.
20 USDT/250 USDT/500 USDT depending on the bonus amount
Bonus validity
3 days
Bonus amount and number of free spins staggered over the first 4 deposits
Slots count 100%, roulette and video poker 10% and all other games 5%
Free spins on Fruits Collection 40 Lines (1st deposit), Demi Gods III (2nd deposit), Poseidon's Rising 15 Lines (3rd deposit), Goddess Of Lotus (4th deposit)
How did we rate this casino
We are really happy with the wide range of slots and live games and the solid welcome bonus. And what is most important for us: the very extensive selection of cryptocurrencies, which includes not only the big coins but also those that are not found everywhere.
Additional free spins are available for a deposit of C$70 or more.
How did we rate this casino
RollingSlots casino offers a generous bonus (even if the calculation of the % is nonsense) and an excellent selection of slots and games. We were quite impressed with the level of support we received here.
7Bit Casino stands out with its generous welcome bonus tailored for crypto customers. It also offers an extensive game selection, a hallmark of Dama N.V. casinos. Additionally, the casino's visual design has seen significant enhancements following its recent redesign.
Live casino, jackpot games and video poker do not contribute to wagering.
How did we rate this casino
JustBit casino has a futuristic design that presents itself very well on both desktop and mobile devices. There is a good game selection, an attractive and overall fair bonus and quite a few deposit options. Definitely worth a try.
The minimum deposit in other currencies is 0.0042 ETH / 10 USDT / 10 USDC / 0.11 LTC / 14 EOS / 95 Dogecoin / 66 TRX.
Maximum winnings released are capped at either: 10x the deposit bonus amount, or specific crypto amounts (0.18 BTC, 2.7 ETH, 5,000 USDT, etc.).
All slots and live casino games contribute to the wagering, while dice and crash don't qualify for the bonus.
How did we rate this casino
Trust Dice is a dependable crypto casino featuring a user-friendly interface and a varied game selection. The platform is well-designed, offering rapid payments, attractive bonuses, and a high level of transparency.
Choose the bonus in the cashier before confirming the deposit and enter the promo code.
There are no wagering requirements, which means that you can withdraw at any time.
Maximum winnings are five times the bonus amount.
Deposits made with Skrill, Skrill Rapid Transfer or Neteller do not qualify for deposit bonuses.
How did we rate this casino
Wolfy casino is convincing in many ways, but in the end, it's the crazy no-strings-attached bonus that makes the casino completely unique. That alone is reason enough to become a customer there.
NeedForSpin comes with a great product and an excellent website design. However, it focuses more on classic payment methods than on crypto. But if you're looking for a casino that can do both, you could be very happy here.
Divided into batches that must be unlocked as you play
Minimum deposit
$20
Bonus validity
30 days
Minimum deposit is $20.
Bonus is divided into 20 “batches.”
You can unlock batches by collecting XP points (using any cryptocurrency).
You get 500 additional Free Spins daily for 5 days after registration.
Bonus remains valid for 30 days from the day of your first deposit.
How did we rate this casino
Bitsler casino offers an extensive selection of games and accepts a variety of cryptocurrencies. The VIP program rewards loyal players with regular tournaments and additional perks.
Skrill/Neteller deposits don't qualify for the welcome bonus
Max bet while playing with bonus funds: 0.000118 BTC (0.013 BCH, 0.001415 ETH, 0.04 LTC, 5.575 USDT, 34.5 DOGe, 7.5 XRP)
How did we rate this casino
We appreciate Spin Samurai casino for offering a vast selection of games from various reputable software providers. The welcome offer and the loyalty program for existing customers are very appealing. Furthermore, we are confident in the casino's level of security and trustworthiness.
Free spins are provided in a set of 20 per day for 10 days.
Neteller and Skrill deposits don't qualify for the bonus.
How did we rate this casino
Boomerang casino offers an impressive selection of games that you can hardly find anywhere else. Furthermore, there is an excellent range of bonuses available to existing customers.
Players receive 20 free spins each day over 10 days.
Deposits made via Neteller or Skrill do not qualify for this offer.
Slots count 100%, while live games, table and card games, video poker, and Plinko count 10% toward wagering.
How did we rate this casino
Boomerang Bet scores well for its wide game selection, diverse bonuses, and flexible payment options, including crypto. We found the FAQ section particularly helpful during testing. However, the absence of two-factor authentication, limited responsible gaming tools, and low withdrawal limits for entry-level VIPs are drawbacks.
Maximum bet per spin while wagering is C$10, 0.00022 BTC, 0.04 BCH, 0.003 ETH, 0.1 LTC, 60 DOG, 5 USDT.
How did we rate this casino
The design style of BitcoinCasino.io is unique and may not appeal to everyone. However, from a product point of view, the casino is very good even though it's not crypto-exclusive. We also find the game selection and the good service very convincing.
Each deposit bonus can be boosted (with a higher percentage if used during the first 10 min).
Max bet per spin and max win per spin: vary per deposit and per tier
Games contributions. Slots: 100%, Original games: 20%, Other games: 0%
How did we rate this casino
Dive into BetFury’s extensive game library with over 9,000 titles and support for 30+ cryptocurrencies, including exclusive tokens. Enjoy engaging promotions like free BTC offers, although the lack of clear licensing details is a drawback for those seeking full regulatory assurance.
The bonus codes for 2nd, 3rd, and 4th deposits are ‘2DEP', ‘3DEP', and ‘4DEP' respectively.
Max cashout for the match part of the bonus: unlimited.
Free spins are provided on Aloha King Elvis and Wild Cash x9990.
How did we rate this casino
Katsubet impressed us with its huge game selection, flexible payments, and generous promotions. We’d love to see more variety in the live casino and lower wagering requirements, but overall, the experience was smooth and enjoyable.
The bonus cannot be wagered on our Live Casino games.
How did we rate this casino
We rated Wallacebet Casino highly for its extensive game selection and partnership with renowned game developers. The casino's European license, issued by the Malta Gaming Authority, alongside responsive customer service, ensures a secure and enjoyable gaming experience.
Minimum deposit in other currencies: 30 USDT/0.0075 ETH/0.31 LTC/166 DOGE/43 XRP/0.067 BCH.
How did we rate this casino
The mBit Casino offers a good selection of more than 8,078 games and a generous welcome bonus. After the redesign, the website now has a more professional look and feel, with less playful elements. While mBit Casino is operated by Dama N.V., its exclusive focus on cryptocurrency sets it apart—an approach we view as a strong advantage in today’s digital gaming landscape.
FortuneJack stands out with a huge game library, sleek mobile play, and a strong 150% bonus with wager-free spins. While promotions are limited and KYC is required before first withdrawal, it remains a top pick for crypto players seeking value, speed, and security.
Rocketpot offers a huge game selection, supports 12 cryptocurrencies, and provides a generous welcome offer with $10,000 and free spins. The licensing transparency is lacking, and minor issues like a menu bug and limited fairness details could be improved.
After 30 days, the “cash vault” opens, unlocking all accumulated bonuses and rakeback amounts.
How did we rate this casino
From today’s perspective, Cloudbet’s game selection might seem limited. However, the casino offers many strong features like live RTP, speedy payouts, various cryptocurrencies, and good rakeback.
To see the offer, make sure to switch your balance display to USDT.
How did we rate this casino
We like Bitcasino.io for its crypto focus, fast transactions, and over 3,600 games, including no-wager Loyalty Club rewards. However, the limited cryptocurrency options and the modest welcome bonus leave room for improvement.
The first 20 free spins are credited right after the deposit, and then 20 more per day for 8 days.
How did we rate this casino
Bitstarz casino has one of the best-organized and user-friendly websites among Dama NV casinos. The bonus and the game selection also meet our expectations. You should definitely give it a try.
Cryptocurrency deposits don’t qualify for the bonus.
How did we rate this casino
The 22bet casino doesn't rank at the top since you don’t get the bonus when depositing with crypto. However, the casino boasts one of the largest selections of crypto payment options, as well as slots and live dealer tables. So, the pure casino product is very well done.
Playamo is one of the casinos that supports both crypto and fiat, and typically requires KYC verification. The biggest drawback is the lack of bonuses for crypto users. However, it offers a strong game selection and an excellent live casino experience.
We like Coinslotty for its solid bonuses, VIP rewards, and game variety. Support is 24/7, and crypto payments are fast. However, crypto options are limited, some game types are lacking, VIP points reset yearly, and VPN use is not allowed.
Cluster Pay slots have become a staple in crypto casinos, offering an exciting alternative to traditional paylines with their innovative group mechanics. This game category has seen impressive new releases and developments over the past year, taking the gaming experience to the next level. Here you'll find the most-played Cluster Pay slots that are trending at international online casinos.
Gargantoonz – Giant Alien Monster with Destruction Power
Gemix 2 – Enhanced World Adventure with Extended Crystal Powers
Gigantoonz – Multi-Level Cluster Cascades with Massive Multipliers
Gargantoonz – Giant Alien Monster with Destruction Power
Play'n GO expands its popular ‘toonz series with this high-energy Cluster Pay slot on an 8×8 grid. With an RTP of 96.2% and a max win of 7,500x your bet, it offers a high-volatility experience. The title character, Gargantoon, can influence the entire grid, remove large symbol groups, and trigger new win cascades. The signature energy collection system unlocks various wild modifiers.
This innovative Play'n GO slot combines Cluster Pays with a unique world-switching system on a 7×7 grid. With a payout rate of 96.75% and wins up to 7,500x your bet, you travel through three different game worlds, each with its own special effects like Light Beam, Crystal Warp, or Chain Lightning. Both the pattern collection system and charge meter work together in Gemix to trigger extra bonus features, continuously increasing your chances of achieving higher payouts as the game progresses.
Reactoonz 2 – Symbol Charging System with Quantometer
Play'n GO's sequel to their alien-themed cluster game plays on a 7×7 grid and offers improved versions of the original’s popular features. With an RTP of 96.2% and high volatility, you can win up to 5,083x your bet. Cascading wins charge the Quantometers, releasing different wild forms and special features. With the addition of the new energy storage system and expanded Gargantoon features, the gameplay in Reactoonz 2 offers more strategic depth and engaging mechanics for players to explore.
This popular 7×7 Cluster Pay slot by Play'n GO with a 96.51% RTP is considered a milestone in the genre, offering wins up to 1,500x your bet. In Reactoonz, alien creatures fill the grid as the Quantum Leap system gathers energy through cascades. This energy powers the mighty Gargantoon, who adds wilds and unleashes massive cluster transformations, backed by a range of smaller helper features.
Gemix 2 – Enhanced World Adventure with Extended Crystal Powers
Gemix 2, the sequel to the Cluster Pay hit comes with improved Crystal Charge features on a 7×7 grid. With an RTP of 96.2% and a maximum win of 7,500x your bet, you can travel through new magical worlds. The revamped Super Charge feature, with boosted world powers and additional wilds, creates more explosive win cascades.
Gigantoonz – Multi-Level Cluster Cascades with Massive Multipliers
On a massive 8×8 grid, Play'n GO’s Gigantoonz offers an RTP of 96.25% and win potential of up to 4,000x your bet. The unique Quantum mechanic lets small and large aliens work together. Electric cubes collect multipliers during gameplay, and with the Mega Wild feature, they can explode into high-value wins. This is made even more rewarding by a unique cluster growth mechanic that expands winning patterns across the grid.
Cluster Pay is an innovative game mechanic in online slots that differs fundamentally from traditional payline systems. With this modern technology, you win when at least five identical symbols connect horizontally or vertically to form a cluster. Unlike traditional slots that require symbols to line up from left to right across a payline, Cluster Pays prioritize symbol positioning rather than linear alignment.
This mechanic is typically displayed on a grid-based layout rather than traditional spinning reels. Common formats include square grids such as 5×5, 6×6, or 7×7. When a winning cluster occurs, the matching symbols disappear from the grid, allowing new ones to fall into place. This creates the possibility of forming additional clusters—a dynamic feature often referred to as a cascade, avalanche, or tumble mechanic—which can generate multiple consecutive wins from a single spin.
How the Cluster Pay Mechanic Works
At the core of this mechanic lies the concept of cascading wins: when a cluster of matching symbols forms, those symbols disappear, allowing new ones to fall into place. This process can trigger chain reactions, where a single spin results in multiple consecutive wins. The payout structure is dynamic and scales with the size of the cluster—smaller groups yield modest rewards, while clusters of 30 or more identical symbols can unlock multipliers worth hundreds of times your original bet.
Popular Cluster Pay slots such as Jammin' Jars, Reactoonz, and Sweet Bonanza feature unique bonus mechanics designed to complement their cluster-based gameplay. These include roaming wilds with rising multipliers and progressive win boosters that increase in value with each cascading win.
Features & Characteristics of Cluster Pay Slots
Cluster Pay slots have become an exciting alternative to classic slot games in crypto and real money casinos. This innovative game category stands out with unique features:
Groups Instead of Lines
Wins are created by at least 5–9 identical symbols that connect horizontally or vertically, instead of predefined paylines.
Cascading Symbols
Winning symbols disappear, making room for new ones that fall into place and create additional win chances within a single spin.
Progressive Multipliers
With each consecutive cascade win, multipliers increase and continuously boost payouts.
Charge Systems
Special meters collect energy from wins and unlock bonus features once certain thresholds are reached.
Grid Transformation
Some games feature dynamic grid changes during gameplay—such as in Megaclusters, where symbols split into smaller ones upon winning, effectively expanding the grid.
Special Wild Features
Custom wild symbols like roaming wilds with increasing multipliers or expanding wilds that cover large grid areas.
Symbol Modifiers
Random events during gameplay that transform, remove, or enhance symbols—often with multipliers—to boost your chances of forming new winning combinations.
Extended Free Spin Modes
Bonus rounds with enhanced features like guaranteed wilds, higher starting multipliers, or special symbol modifiers.
High Volatility
Typically medium to high volatility gameplay with the potential for massive wins through chain reactions and multipliers.
Visual Effects
Elaborate animations and sound effects that enhance immersion during cluster formations and cascades.
Varied Grid Sizes
Diverse grid formats from 5×5 to 8×8 or even irregular shapes like honeycomb structures.
Collectible Symbols
Special collection features where certain symbols are gathered during gameplay to activate bonus functions.
Bonus Features in Cluster Pay Slots
Cluster Pay slots are not only exciting because of their innovative core mechanic, but also due to their creative and varied bonus features. These special features are perfectly tailored to the cluster-based gameplay and significantly boost both entertainment and win potential:
Cascade Wins – Chain Reactions with Disappearing Symbols
Expanded Grids – Enlarged Layouts for Maximum Cluster Formation
Cascade Wins – Chain Reactions with Disappearing Symbols
Winning symbols disappear and make room for new ones, allowing multiple wins from a single spin and forming the basis for many other bonus features.
Reactive Wild Symbols – Dynamic Jokers with Growing Power
Special wilds that grow, move, or split after activation. A standout feature in Jammin' Jars is the animated wild jam jars, which move across the grid and boost their multipliers with each consecutive win—a dynamic element that has made them especially popular among players.
Symbol Transformations – Magical Conversion into Higher Winning Chances
Random or triggered transformations, where regular symbols upgrade into high-value icons or wilds. A prime example is Reactoonz 2, where entire categories of lower-tier symbols can be transformed into wilds.
Charged Meter Systems – Progress Bars With Bonus Rewards
Game progress bars like the Quantometer in Reactoonz or the Honey Meter in Honey Rush, which charge up through wins and activate special powers once certain thresholds are reached.
Multiplier Bombs – Explosive Winning Potential Through Multipliers
Multiplier symbols that appear randomly on the grid or are guaranteed during free spins, multiplying your wins. For example, the multiplier bombs in Sweet Bonanza can reach up to 100x.
Colossal Symbols – Oversized Symbols for Easier Cluster Formation
Huge symbols that cover multiple grid positions, making it easier to form large clusters. Especially effective in games with larger grids like Gems Bonanza.
Symbol Removal Features – Strategic Clearing of the Grid
Mechanics that remove non-winning symbols from the grid to make room for potentially winning ones, such as the “Zapper” in Reactoonz games.
Free Spins With Features – Premium Bonus Rounds with Extra Functions
Bonus rounds with guaranteed multiplier boosts, extra wilds, or special symbol modifiers. Their added value and win potential make them particularly appealing to experienced casino players.
Sticky Wilds – Locked Wilds for Lasting Win Opportunities
Wilds that stay on the grid during bonus rounds, remaining active across multiple cascades or even the entire free spin round, maximizing your chances of winning.
Bonus Buy Options – Direct Access to Lucrative Special Rounds
In certain Cluster Pay slots, players have the option to access the free spin round instantly through a Bonus Buy feature, typically available at a fixed cost ranging between 70x and 100x the base bet.
Symbol Collectors – Collection Systems With Tiered Rewards
Features where specific symbols are collected during gameplay to unlock additional bonus functions, like the energy collector in Reactoonz 2.
Expanded Grids – Enlarged Layouts for Maximum Cluster Formation
Temporarily or permanently enlarged game grids during bonus rounds, allowing more symbols and boosting the potential for larger clusters.
How to Play Cluster Pay Slots
Cluster Pay slots are fundamentally different from traditional slot machines and offer a more dynamic experience. With this guide, you can refine your strategy and unlock the full potential of this innovative slot category with its group-based win mechanics.
Step 1: Understand the Basic Game Mechanics
Before spinning, get familiar with the core concept: wins are formed by landing groups (clusters) of at least 5–9 identical symbols that are horizontally or vertically adjacent. Diagonal connections usually do not count. This grid-based format requires a different mindset than traditional paylines—positioning, not alignment, is key.
Step 2: Consider Bet Size and Volatility
Cluster Pay slots are typically medium volatility to high volatility, meaning wins may be less frequent, but potentially more substantial. To withstand longer losing streaks, it's wise to limit your stake to 1–2% of your total bankroll per spin. This conservative approach allows more playtime and improves your chances of hitting high-value features.
Step 3: Focus on Bonus Features
Pay close attention to the bonus mechanics in each slot. These might include charge meters like in Reactoonz, roaming wilds as seen in Jammin' Jars, or building multipliers that grow with each cascade. These features often drive the biggest wins, so patience can pay off—many games are designed to reward players during peak feature moments.
Step 4: Master Cascading Wins
Cascading (or tumble/avalanche) wins are a hallmark of Cluster Pays. When a cluster hits, winning symbols disappear and new ones fall into place, potentially forming chain reactions. These chains often come with multipliers that increase with each consecutive win, making cascading sequences one of the most valuable aspects of the game.
Step 5: Maximize Free Spins Rounds
Free spins aren’t just a bonus—they’re where much of the slot’s winning potential lies. In many Cluster Pay games, starting a free spins round includes advantages like guaranteed wilds, progressive multipliers, or expanded grids. Understanding these special conditions can help you capitalize on the most rewarding part of the game.
Step 6: Try Out Demo Versions
Demo modes are a great way to explore different Cluster Pay slots without risking any money. Try out a variety—such as the gem-focused Gems Bonanza or the fast-paced and feature-rich Reactoonz 2—to discover which themes and mechanics suit your preferences before playing for real.
Step 7: Set Clear Game Limits
Cluster Pay mechanics—especially cascading wins—can be highly engaging, sometimes making it easy to lose track of time or overspend. Always define your budget and session duration in advance and stick to them. Responsible play ensures the experience remains fun and controlled, even during losing streaks or when chasing bonus features.
Cluster Pay Vs. Classic Slots – A Detailed Comparison
This comparison shows you how Cluster Pay differs from the classic payline structure and what advantages and disadvantages each version offers. This way, you can decide which game type suits you best.
Win Mechanics
In classic slots, you win by landing symbols on fixed paylines, usually running from left to right. Cluster Pay slots work differently – wins are formed by groups of at least 5–9 identical symbols that connect horizontally or vertically. This key difference delivers a fresh gameplay experience—opening up more winning possibilities in multiple directions and enhancing overall engagement.
Grid Structure
Traditional slot machines use a reel system, typically consisting of 3 to 5 reels and 3 to 4 rows of symbols. Cluster Pay slots, by contrast, are based on a grid layout—usually square or rectangular—with common sizes like 5×5, 6×6, or 7×7. These larger grids allow for more symbol interactions and more complex win patterns than the linear format used in classic slots.
Consecutive Wins
One major advantage of Cluster Pay slots is the almost always included cascade or avalanche feature. After a win, the winning symbols disappear, new ones drop in, and can trigger additional wins—all within a single spin. Classic slots rarely offer this mechanic; in most cases, a spin ends after the first win, and you must spin again for another chance to win.
Volatility and Win Potential
Cluster Pay slots usually have medium to high volatility, with the potential for impressive payouts through cascading wins and multipliers. Wins can often reach 5,000x to 50,000x your bet. Classic slots cover a wider volatility range—from low to high—with many traditional fruit machines offering more consistent but smaller payouts.
Bonus Features
The bonus features in Cluster Pay slots are tailored to the grouping-based mechanics, with elements like roaming wilds, symbol transformations, and charge systems triggered by consecutive wins. Classic slots usually rely on traditional bonus elements like simple free spins, pick-and-click games, or gamble features that work independently of the main gameplay.
Game Complexity
For players who are new to online casinos, classic slots with their linear paylines and simpler rules may be easier to understand. Cluster Pay slots offer a more complex gaming experience with layered mechanics and bonus systems that require some learning but also add a deeper strategic element to the gameplay.
Game Pace
The pace of play differs significantly between the two formats. In classic slots, each spin is a self-contained event with a clear start and end. Cluster Pay slots can last much longer due to cascading wins, with smooth transitions between spins, creating a more continuous and immersive gaming experience.
Comparison Overview
Feature
Cluster Pay Slots
Classic Slots
Win Mechanism
Groups of 5+ symbols
Symbols on fixed paylines
Game Field
Grid (5×5 to 8×8)
3–5 reels with 3–4 rows
Cascading Wins
Standard
Rare
Volatility
Mostly medium to high
Low to high
Max Win Potential
Often 5,000x–50,000x
Typically 1,000x–5,000x
Bonus Complexity
High, multi-layered
Usually more straightforward
Beginner-Friendliness
Moderate learning curve
More accessible
Direct comparison of Cluster Pay slots and classic slot machines.
Both Cluster Pay slots and classic slot machines offer benefits for players. While classic slots appeal with their familiarity and simplicity, Cluster Pay versions deliver a more dynamic gaming experience with innovative mechanics and higher win potential through chain systems.
Advantages of Cluster Pay Slots
The innovative Cluster Pay mechanic has brought a fresh twist to online casinos , offering several The innovative Cluster Pay mechanic has brought a fresh twist to online casinos , offering several compelling advantages over traditional slot machines. Here’s why Cluster Pay slots have become the top choice for many players:
Dynamic Gameplay: The cascading symbol feature and chain reactions offer a continuous and engaging flow of action, allowing a single spin to result in multiple successive wins.
Higher Winning Potential: The combination of cascading wins and progressive multipliers allows for impressive payouts of up to 50,000x your bet.
Innovative Bonus Features: Specially designed for the cluster mechanic, features like roaming wilds, symbol transformations, and charge systems offer a more layered and strategic experience than standard slot bonuses.
Modern Graphics and Animation: Cluster Pay slots typically feature higher-quality graphic designs and smoother animations, especially highlighting the cascade effects and symbol interactions.
Larger Game Field: Cluster Pay slots use expansive grid layouts—ranging from 5×5 to 8×8—that allow for increased symbol interaction and more intricate winning combinations compared to the restricted reel setup of classic slots.
Longer Single Spins: A single spin can be extended significantly through cascading sequences, delivering greater entertainment value per wager and a more dynamic overall experience.
Better Value for Money: Thanks to the possibility of multiple consecutive wins from one spin, Cluster Pay slots often offer better value and longer playtime.
Disadvantages of Cluster Pay Slots
Despite their growing popularity and exciting gameplay, these slots come with some challenges that may be relevant for certain types of players. Here are the main limitations and potential downsides of cluster-based slot machines:
More Complex Rules: The cluster mechanic with cascading symbols and layered bonus features can be overwhelming for beginners.
Higher Volatility: Most Cluster Pay slots have medium to high volatility, which can mean longer losing streaks. This makes them less suitable for players with smaller budgets or cautious play styles.
Less Predictable Playtime: The variable nature of cascading sequences makes spin duration less predictable. While some spins end quickly, others can last considerably longer thanks to ongoing chain reactions.
Faster Budget Depletion: The combination of high volatility and the expectation of rewarding cascade chains can lead to quicker losses if those anticipated sequences don’t occur.
Potentially Confusing Payout Structure: With varying cluster sizes and cascading sequences that apply increasing multipliers, it can be difficult to accurately gauge the value of a win at a glance.
Increased Addiction Risk: The dynamic gameplay with constant small wins and the anticipation of cascade chains can trigger a stronger reward response and potentially a higher risk of addiction.
Limited Availability: Although the selection is growing, there are still significantly fewer Cluster Pay slots than classic slot games, which may limit options in some online casino sites.
Alternatives to Cluster Pay Slots and Casinos
If you’re ready to explore something different from Cluster Pay slots, there are several innovative alternatives that offer unique gameplay mechanics. These types of slots provide exciting experiences using distinct approaches to deliver entertainment and winning opportunities. Below are some of the most interesting alternatives to Cluster Pay slots:
Megaways Slots
This mechanic, developed by Big Time Gaming, revolutionizes the concept of paylines by allowing a variable number of symbols per reel. The Megaways mechanic offers up to 117,649 ways to win on each spin, creating a dynamic and exciting gaming experience with ever-changing reel configurations. Titles like Bonanza or Extra Chilli offer cascading symbols and progressive multipliers similar to cluster pay slots, but within a linear reel system instead of a cluster.
InfiniReels/Infinipays
NetEnt's InfiniReels mechanic starts with a standard 3×3 grid but adds a new reel with every win. In theory, this can lead to an infinite number of reels, creating an exciting and unpredictable gaming experience. Gods of Gold InfiniReels is a prime example of how this system delivers continuous excitement.
Megaclusters
Big Time Gaming developed the Megaclusters mechanic as a hybrid evolution of the cluster pay system. Winning symbols split into smaller pieces, increasing the grid’s size and unlocking more possibilities on each spin. Star Clusters Megaclusters is one of the most recognized titles using this innovative feature.
Grid Slots with Multiple Modifiers
Developers like Play'n GO have created grid-based slots with complex modifier systems. Titles like Moon Princess combine cluster-style win patterns with character-specific special abilities and transformation features for a more strategic gameplay experience.
xWays and xNudge Mechanics
Nolimit City has developed two innovative mechanics: xWays and xNudge. The xWays feature allows symbols to expand and cover multiple spaces, while xNudge wilds are pushed into view, collecting multipliers along the way. In highly volatile games like San Quentin xWays, these mechanics contribute to significant win potential and a unique gameplay experience.
Avalanche Slots without Clusters
Some slots use the popular avalanche/cascading mechanic but stick to traditional paylines instead of clusters. Gonzo's Quest by NetEnt pioneered this format, combining falling symbol gameplay with more classic win patterns.
Conclusion & Future Outlook for Cluster Pay Casinos and Slots
Cluster Pay slots have fundamentally changed the international online casino landscape with their dynamic grid-based mechanics. This format allows for cascading wins, engaging bonus features, and more creative game designs. The flexibility and unpredictability of cluster-based systems appeal to a wide range of players, from those seeking casual entertainment to others who enjoy more strategic gameplay elements.
With mobile gaming on the rise, Cluster Pay slots are also thriving on smartphones and tablets. Their grid layouts and responsive design work seamlessly on smaller screens, delivering an experience that’s just as smooth and immersive as desktop play. As developers continue to innovate within this format, players can expect even more visually striking, feature-rich titles designed to perform flawlessly across all devices.
FAQs: Cluster Pay in Casinos and Slots
What are Cluster Pay slots?
Cluster Pay slots are modern games that pay out by grouping at least 5-9 matching symbols adjacent to each other, rather than using traditional paylines. These games often feature grid layouts and are famous for their cascading symbols.
How does the Cluster Pay mechanic work?
To win with Cluster Pay, you need 5-9 identical symbols connected either horizontally or vertically. After a win, the symbols that formed the cluster disappear, allowing new symbols to fall into place and potentially trigger additional wins in a chain reaction.
Do Cluster Pay slots offer higher winnings than traditional slots?
Yes, Cluster Pay slots often offer higher maximum win potential, sometimes reaching up to 50,000x your stake, thanks to their cascading mechanics and multipliers. However, this higher win potential usually comes with increased volatility, meaning you may experience longer dry spells between big payouts.
Which developers specialize in Cluster Pay slots?
Play'n GO is a leading developer in the Cluster Pay genre, particularly with its popular “toonz” series. Other notable developers include Push Gaming, Pragmatic Play, NetEnt, Relax Gaming, and ELK Studios, all of whom have created outstanding Cluster Pay games.
How we keep our content up to date:
As soon as figures, data or facts change, our team of crypto and casino experts adjusts the articles. Here you can see the editing history of this article.
August 1, 2025
Top 3 Update
July 2, 2025
Added Bitrsike as #2 to our recommended Cluster Pay casinos.
Online Gambling, Greece and my dog Gringo are my three favorite things in my life. Before working for Kryptocasinos.com I was leading the content team of an iGaming Online magazine where I was focused on researching casinos, their licenses and the connection between the members of the industry.
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