Cluster Tumble

Review, Demo Play, Payout, Free Spins & Bonuses

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  • Top prize worth 20,000x your bet
  • Extra-powered wild symbol
  • Lightning and fire bonus symbols
  • Highly volatile gameplay requires patience
  • The game name is not very appealing

Cluster Tumble is an online slot designed by Relax Gaming. The core features include an 8x8 slot grid with cluster payouts, free spins, and special bonus symbols. It is a highly volatile slot game with a 96.40% RTP and a top prize worth 20,000x your stake.


Cluster Tumble from Relax Gaming is a smart-looking slot game that sits snuggly into the action/adventure theme. Free spins and some potentially powerful bonus symbols are included. Yet, the 20,000x multiplier is perhaps the biggest feature of this slot game.

You can play the Cluster Tumble free play demo right here at Slots Temple when the game is released on November 3, 2021.

Theme & Story

The name Cluster Tumble doesn’t give much away, but the theme is based on the action-adventure genre. It looks excellent, and Relax Gaming has done a grand job at putting the visuals together. The symbols are basic, but the colours stand out and sit well on that big 8x8 slot grid.

As for the game environment, you are placed inside the walls of an ancient temple, and the bonus screen cleverly opens out from behind the slot grid and takes you deep into a treasure-filled tomb.

Fun and Engaging Narrative

The story is all about our heroine searching for her husband or boyfriend in the wilderness of some distant mountaintop. We don’t know exactly how they are related, but whoever he is, he’s happy to see her when you activate the free spins bonus game!

Great Soundtrack

The soundtrack rolls along with a constant drumbeat, and then things get a lot more entertaining and upbeat once you reach the free spins feature. All sorts of jingles and pings come to life as you try to rack up as many cluster wins as possible.

Cluster Tumble RTP & Volatility

Cluster Tumble has an RTP of 96.40%. Relax Gaming has put this game safely within the average range of RTPs amongst all the free slots here at Slots Temple. It’s a highly volatile game and comes with a significant maximum prize that offers 20,000x your total bet.

Cluster Tumble

How to Play Cluster Tumble

The controls for the Cluster Tumble demo are very straightforward:

  • Main spin button to begin the game
  • The “+” and “-“ buttons adjust the bet total
  • The paytable, rules, and game settings can be accessed via the menu button
  • Turbo button to speed up the spins
  • Autoplay button:
    • Choose between 10, 25, 50, 100, 250 500, and 1,000 auto-spins
    • Loss limit setting
    • Win limit setting
    • Single-win limit setting

How to Win

Cluster Tumble makes use of the cluster pays mechanic on its expansive 8x8 grid. To confirm, this feature replaces all winning symbols with new symbols for the chance of winning extra prizes from a single spin.

You need to land at least four adjacent symbols that lie horizontally or vertically to trigger a win.

  • The betting range offers a minimum and maximum of £0.10 to £50 per spin.

The symbols explained below can pay out various prizes on clusters of 4 to 40+ symbols. The biggest is 2,000x your stake from 40+ dragon symbols.

  • 3 x low-paying symbols – Red Gem, Green Gem, Blue Gem
  • 3 x high-paying symbols – Dragon, Beetle, Mask
  • 1 x wild symbol – Big “W”
  • 1 x scatter symbol – Golden Badge
  • 2 x bonus symbols – Lightning, Fire

Cluster Tumble Free Spins

Triggering the free spins can be achieved in one of two ways. You can either land three scatter symbols anywhere on the grid or remove all the blocks from the grid via multiple cluster wins. You’ll get five free spins to begin with, and additional scatter symbols earn you extra spins.

A further three spins and a 3x multiplier boost are available if you remove all the blocks from the grid in the free spins mode.

  • The global multiplier keeps its value throughout the whole of the free spins feature.

Special Stone Blocks

There are three special stone blocks in play, including the wild, lightning, and fire bonus symbols. They get triggered when they form part of a win and act as follows:

  • Wild – Wild symbols substitute for all other standard symbols, and each one comes with five lives. A life is lost every time the wild is included in a combination win.
  • Lightning – All lightning symbols transform into standard symbols to create a win no matter where they are located on the win – no cluster required.
  • Fire – All fire symbols transform into a random symbol. The next 1-2 spins will see extra symbol transformations into the same one.

Instant Buy Feature & Volatile Free Spins

Gain direct access to the free spins feature that includes a volatile free spins mode via the “Buy Bonus” button. It costs you 100x or 200x your bet size to activate these modes.

The multiplier increases at double the rate during these paid-for features, which helps those players aiming to hit that maximum prize of 20,000x the total bet.

Our Verdict

Some players may likely pass Cluster Tumble by when browsing through the casino lobby. The name does not conjure up much excitement, and it sounds like a simple slot design.

 But open the game, and that is definitely not the case. This is a fantastic looking game with an adventure theme at its core.

Great Bonus Features

Free spins and bonus symbols help keep the gameplay running along, and the 8x8 cluster pays slot grid opens up a huge area to match winning symbol combinations.

The top prize of 20,000x the total bet is without a doubt the standout feature here, though, with potentially huge wins available.

Is It Worth a Spin?

Now you know that Cluster Tumble is, in fact, a great looking adventure themed slot by Relax Gaming, you’ll probably want to give it a few spins. If so, you can the Cluster Tumble demo here at Slots Temple.

Disclaimer: Cluster Tumble trademark / license is owned by Relax Gaming. This site is not endorsed by Relax Gaming.

* This button takes you to an external third-party partner real money casino website. Although we try and match games with Casinos that have them, we advise that you double-check the slot content on the casino website before making a deposit or signing up.

Slot Data
Slot Name: Cluster Tumble
Software: Relax Gaming
RTP: 96.40%
Paylines: 8
Reels: 8
Min Bet (all lines covered): £0.10 (GBP)
Max Bet: £50 (GBP)
Top Win: 20000
Features: Wild Symbol, Scatter Symbol, Multiplier, Free Spins, Clusters, Cascading, Increasing Multipliers, Transforming Symbols
UK Available in GB? Yes. Relax Gaming have a UKGC license and are allowed to offer their games at UK licensed casinos.

Cluster Tumble Slot FAQs

What is the RTP of Cluster Tumble?

The RTP of Cluster Tumble has been set to 96.40% by its creators, Relax Gaming. This is around the average RTP rate for most online slots.

How volatile is Cluster Tumble?

The Cluster Tumble slot game has been given a high volatility rating. It requires patience to play through the swings and its low win rate gameplay.

What is the biggest win available on Cluster Tumble?

The biggest win that you can pick up when playing Cluster Tumble is worth 20,000x your total bet.

Does Cluster Tumble have a free spins bonus round?

Yes, Cluster Tumble has a free spins bonus round available with five free spins available to begin with.

Can I retrigger the free spins feature in Cluster Tumble?

Yes, you can retrigger free spins with several additional spins available when you land more scatters or clear the grid of all blocks.

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