Cluster Slide Online Slot

Published: 13 Apr 2021 | Updated: 13 Apr 2021
Game Provider: Elk Studios
Slot Info
RTP: 96.00%
Volatility: Medium
Maximum Win: £ 1000000.00
Progressive Jackpot:
Bonus Feature:
Theme: Aliens, Space

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Slot Setup and Betting Options

  • 06.04.2021 Release Date
  • 7 Reels
  • 7 Rows
  • 3D Graphics
  • Mobile Version
  • £ 0.20 Minimum Bet
  • £ 100.00 Maximum Bet
  • Win Both ways
  • Cluster Pays

Cluster Slide Online Slot Review

The Cluster Slide online slot from ELK Studios plays out against a backdrop of a strange alien world. The gameplay and features are equally out of this world, with a special twist on the cascading reels system making it stand out. This desktop and mobile game stars colourful monsters across a 7x7 grid, along with a generous helping of bonus symbols.

Build winning combinations and you unleash a variety of feature wilds onto the game. These expand symbols, increase multipliers, upgrade symbols, or add extra wilds to the mix. During a free spins bonus round, giant symbols help to complete high-paying clusters.

Play at the maximum stakes and it’s possible to collect a win of 1,000,000.00 from the Cluster Slide slots game. It comes with medium to high volatility, and an average payback percentage of 96%.

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How to Play the Cluster Slide Slot

Ice mountains and glowing crystals feature in this alien world. Improbably close moons orbit the 7x7 grid, where you see green, purple, orange, and red blocks of colour, or shaggy, high-paying fur. Land a winning combination from the furry symbols and alien eyes open up, adding some humour to this space-themed game.

Load the Cluster Slide slots game onto a PC, Android, iOS, or Windows device and you can play for between 0.20 and 100.00 per spin at the top-ranked online casinos. The controls couldn’t be easier, with a click on the plie of coins button revealing all of the bet options at once. Select a stake and you’re ready to play.

The ‘Auto’ button spins the reels on their own for up to 100x, and the 3 small lines take you through to the paytable. You win from groups of at least 5 examples of the same symbol clustered together. Prizes go up with larger clusters, and if you land at least 15 red fur symbols, you win 500x your bet.

Winning symbols vanish, and here’s where the ‘Slide’ part of the game comes into effect. Instead of simply dropping down to fill the empty spaces, symbols slide as far to the left as they can before cascading, or ‘Avalanching’ downwards. Create a new winning cluster from this feature, and you get further avalanches, with no maximum to how many can occur in a series.

Free Spins & Other Cluster Slide Slot Features

A standard wild symbol can act as others in any spin, but a highlight of this game is the Feature Wild Generator above the reels. All winning symbols within a series of avalanches contribute to the generator meter, and once full, it unleashes any of 5 special wilds onto the grid.

The Big wild expands a random symbol to 2x2 size, while the Random wild replaces between 2 and 4 symbols with extra wilds. If the Multiplier wild triggers, any win increases by 1x, and the Upgrading wild turns a random symbol into the next most valuable. The Removing wild selects a random symbol, and all examples vanish from the grid to trigger an avalanche.

A multiplier meter sits alongside the Feature Wild Generator. If 5 or more wilds unlock during a series of avalanches, all further wins in the series are multiplied by 5x.

A bonus symbol in 3 or more places will award 3 free spins, or ‘Drops’. The triggering symbols turn wild, and you also get 3 extra wilds on the first spin. Two 2x2 wilds appear in the second free game, and a single 3x3 wild in the third. You can’t retrigger this round though.

Slot Features

  • Multipliers
  • Scatters
  • Wild Symbol
  • Free Spins
  • Colossal Symbols
  • Multiplier wilds
  • Transferring wilds
  • Re-Spins
  • Cascading Reels
  • Gamble Feature
  • Retriggering
  1. 1

    100% Welcome Bonus up to £400 + 50 Bonus Spins

Maximum Wins, RTP, & Average Returns of the Cluster Slide Slot

With the maximum multiplier and ideal symbols, you can win 10,000x your bet, or 1,000,000.00 at the highest stake. The Cluster Slide slot machine has a medium to high volatility, and average returns of 96%.

Our Verdict on the Cluster Slide Slot

While the actual sliding part of the gameplay is something of a gimmick, this is an outstanding game from ELK Studios. The outer space setting and cute aliens will appeal to many players, and the thrilling gameplay can be admired by all.

You’ll need several avalanches in a sequence to unleash special wilds and multipliers, but it’s relatively easy and should happen often enough to keep you entertained for ages. Explore this strange world when you play the Cluster Slide slot at the best online casinos today.

  1. 1

    100% Welcome Bonus up to £400 + 50 Bonus Spins

Meet Our Slot Tester

Adam Kenny

Senior content operations specialist at

With over 12 years of experience in online gaming, Adam has seen, played, reviewed, and tested hundreds of slot games. He is always keeping an eye out for new features, themes, and potential jackpots by testing slot games even before they are released to the market.

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