Yes, the $1 gives you 3 Free Wild Drops/free spins. On the first spin, you’ll play with 7 single wilds. On the second, two 2×2 wilds are added. A colossal 3×2 wild appears on your last free spin.
Cluster Slide Slot Review
4.5 / 5
Author: Chris Taylor
5 min read 
4.5 / 5
Author: Chris Taylor
5 min read
Get 100 Free Spins when You Bet £20
Blast off into space and join the strange creatures that inhabit the wild planet of Jellyton in the anarchic Cluster Slide slot. Created by ELK Studios, it comes with sliding reels that trigger with every winning spin. Each winning combination contributes to a wild meter. Fill that meter and you’ll be in line for a Feature Wild. This awards a variety of extras including 2×2 wilds, added wilds, multiplier wilds, symbol upgrades and symbol removals. Land 5 Feature wilds in a game round and it brings 5x multipliers into play too. Trigger the Bonus Game feature for 3 Wild Drops. These free spins come with extra wild, 2×2 and 3×3 wilds. Find out more about this highly unusual slot in our in-depth Cluster Slide review.
Provider
Type of Slot
Theme
Reels
Paylines
Stakes Range
Bonus Features
Free Spins
Multiplier
Max Win
RTP
Volatility
View All
Cluster Slide Demo
You are playing Cluster Slide for FUN 
Recommended Casino
NetBet Casino
5 / 5
3,000+
Up to 24 hours-
United Kingdom (UKGC)
Get 100 Free Spins when You Bet £20
Best casinos to play Cluster Slide slot with real money
888casino Casino
4.9 / 5
- 1,000+
- 3–5 days
- United Kingdom (UKGC)
100% Bonus up to £200
Casumo Casino
5 / 5
- 2,100+
- Instant
- United Kingdom (UKGC)
100% Deposit Bonus up to £100 + 50 Bonus Spins on Big Bass Bonanza
Karamba Casino
4.5 / 5
- 2,400+
- Up to 72 hours
-
100% Bonus up to £250 + 250 Spins on Big Bass Splash
Spinyoo Casino
5 / 5
- 1600+
- Up to 72 hours
- United Kingdom (UKGC)
100% Deposit Bonus of up to £250 + 100 Spins
Cluster Slide Slot RTP, Details & Wager Limits
As you might guess from its name, the Cluster Slide slot uses a Cluster Pays game engine. Played on a 7×8 grid, winners are created by landing clusters of 5 or more matching symbols. After a winning cluster is formed, those symbols are removed. Instead of dropping in from above, the new symbols slide onto the grid from the right. A new payout consideration is then made. Slides keep on coming until no new winning cluster is created.
You can play Cluster Slide at stake levels of between 20p and £100 per spin. Click on the coins in the bottom left-hand corner of the screen and choose from 12 different stake options.
The Cluster Slide RTP is 96% with the variance in the high category. The bigger wins will come from the multipliers and feature wilds. The maximum win comes in at 10,000 x your total stake.
Theme – join cartoon critters on planet Jellyton
The rocky surface of the mysterious planet of Jellyton is the setting for the Cluster Slide slot. With an outer space theme, the cartoon-style design is bright, colourful and simply done. It works rather well. As does the soundtrack. It doesn’t have much of a sci-fi feel to it but it bounces along nicely enough.
The 7 reel, 8 row game grid is made up of 4 jelly monster type symbols and 4 high-value hairy critters. There are quite friendly and not as scary as the ones from the 1986 Critters film. The best of them is the red furry monster with the crown and moustache. Land 5 of him in a cluster for a payout of 1 x your total stake. Land 15 or more in a cluster and he delivers an award of 500 x your total stake.
Remember, it’s possible to boost these numbers with multipliers which I’ll look at below. There are also wilds, feature wilds and a bonus symbol.
| Symbol | Payout |
|---|---|
 Green Jelly Monster | Pays 0.1 to 3x |
 Purple Jelly Monster | Pays 0.1 to 3x |
 Yellow Jelly Monster | Pays 0.15 to 4x |
 Red Jelly Monster | Pays 0.15 to 4x |
 Green Furry Monster | Pays 0.5 to 100x |
 Purple Furry Monster | Pays 0.6 to 150x |
 Orange Furry Monster | Pays 0.8 to 300x |
 Red Furry Monster | Pays 1 to 500x |
 Bonus Scatter | 3 triggers 3 Wild Drops |
 Normal Wild | Substitutes for all except bonus & feature wild symbols |
 Big Wild | Expands a random symbol to a 2×2 sized symbol |
 Random Wild | Replaces 2-4 symbols with wild symbols |
 Multiplier Wild | Increased the multiplier in play by 1 |
 Upgrading Wild | Upgrades all of 1 symbol to a higher valued symbol |
 Removing Wild | Removes all of 1 symbol from the grid |
Cluster Slide Mobile
You can play Cluster Slide on mobiles and tablets as well as desktop computers. With 56 symbols on the game grid, the design here needs to be good. Thankfully, the bright symbols against the dark backdrop work just fine when you’re playing on a device with a small screen. The gameplay is certainly unusual, but the Cluster Slide mobile slot is perfectly clear.
Cluster Slide Bonus Features
In this space adventure, wilds are central to much of the best action. Fill the Feature Generator to activate these wild modifiers. There’s also a Bonus Games feature that awards free spins with even more wild extras.
Feature Generator
Whenever you land a winning cluster, the winning symbols contribute to the Feature Generator which you can see in the top left-hand corner of the screen. Once the Generator is full, you’ll receive a Feature Wild. There are 5 features in all:
| Name of Wild feature | Feature Information |
| Big Wild feature | This is a 2×2 wild symbol |
| Random Wild feature | Between 2 and 4 random positions on the reels turn wild |
| Multiplier Wild feature | Increases a multiplier by 1x |
| Upgrading Wild feature | Turns all examples of a symbol into a higher paying symbol |
| Removing Wild feature | All examples of a symbol are removed from the game grid |
Multiplier feature
If you manage to land all 5 Feature Wilds in a single game round, you’ll trigger the Multiplier feature and bring a 5x multiplier into play. It’s possible to add to this multiplier too and trigger even larger payout boosts. The multiplier resets to 1x following a drop where no new winning cluster is formed.
Bonus Game feature
Land 3 Bonus symbols on the same spin and you’ll trigger the Bonus Game feature. Your reward is 3 Free Wild Drops or free spins. On the first drop, the triggering Bonus symbols turn wild and they’re joined by 3 1×1 wilds which are added to random positions on the grid.
On the second free drop, a pair of 2×2 wilds are added to the reels. Helping your winning chances is a colossal 3×3 wild on the third and final free drop.
X-iter feature
In some territories, you’ll be able to activate the X-iter feature. This allows you to play in a variety of game modes that offer a series of extras. These include symbol drops with multipliers, collected symbols and wilds which return on the final spin, a trigger of the Bonus Game feature or the Bonus Game feature with wild extras. The price of these extras ranges from between 15 and 300 x your total stake.
Cluster Slide Review Summary – unusual gameplay makes this planet worth exploring
ELK Studios has taken a variety of familiar elements (space theme, cluster pays, sliding symbols) and shaken them up to create something innovative and fresh in the Cluster Slide slot. It’s right up there amongst some of the best grid slots on the market in terms of uniqueness.
The feature wilds can deliver some top action. It can take a while to fill the Generator but a good run when they do arrive can be worth waiting for. The Multiplier Wild feature is particularly good especially is combined with the Multiplier feature. Likewise, the Bonus Game feature where the oversize wilds can really get things moving.
The game engine is slightly unusual so a few spins in demo mode are recommended if you can. If you like the space theme but fancy some rather unusual gameplay, that’s just what’s on offer in Cluster Slide.
If you want cluster pays slots, 2 of the best ones are Jammin’ Jars 2 by Push Gaming and Sweet Bonanza by Pragmatic Play.
Pros
Cons
Cluster Slide FAQs
The Cluster Slide return to player rate is 96% which is about average. This is a high variance slot though with most of the bigger wins coming from the various bonus features.
The maximum win from this space adventure is 10,000 x your total stake from a single spin. The key to winning big is from the multipliers which can arise from the feature wilds.
When you fill a Generator, the a $1 is triggered. They offer 2×2 wilds, random wilds, a multiplier increase, transforming symbols and removal of symbols. Land all 5 together to benefit from a 5x multiplier boost.
Yes, produced by ELK Studios using HTML5 technology, the Cluster Slide slot$1 at Online-Slot.co.uk. Play it on desktop, mobile and/or tablet devices.
Chris Taylor
1540 Articles
Chris is a slots expert that has reviewed and played over 10,000 slots online. Having being in the iGaming industry since 2004, he loves digging into the mechanics behind the slot games, playing the various bonus features and giving an honest verdict from a player’s perspective.
