Cluster Slide Slot Review
Swedish developer ELK brings a cosmic take on the cluster slot with Cluster Slide! Sure it might be reminiscent of Reactoonz, but Cluster Slide quickly reveals itself to be its very own thing. Symbols both drop and slide as you land winning combinations, while the wilds are key for the game’s bonus features. There’s a lot to get into, so join us in our definitive Cluster Slide review to learn whether this is a game worth sliding into.
Cluster Slide
Cluster Slide RTP and Wagering
Cluster Slide, as the name suggests, is a cluster slot. This means wins are formed by landing clusters of 5 or more matching symbols in horizontally or vertically adjacent positions on the 7x8 grid. Winning symbols are removed from the grid, after which any remaining symbols first drop then slide to the left before new symbols drop to fill the empty spaces. This Avalanche process can lead to new winning clusters, in which case it repeats until there are no more wins on the grid.
The slot game has the average slot RTP of 96%, which is paired with volatility that lies somewhere between medium and high. The maximum win is capped at 10,000x the stake, and just as well since betting can start from as low as £0.20 to reach up to £100.
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Cluster Slide Symbols and Audio & Video Design
ELK’s artists go full science fiction with Cluster Slide. The game is set in a cosmic landscape dominated by strange rock formations and multiple planets hanging in the starry sky. This sets the scene nicely for the slot proper, which is set in a purple crystal grid. The symbols might look like ordinary squares, but these are actually aliens - form a winning combination and these will grow eyes and mouths before popping off the grid in a rather satisfying manner.
Since we’ve mentioned the symbols, 8 of these are the paying symbols. These are equally divided between high and low pays, with the high-paying symbols distinguished by their textured style. Then there are 6 different wilds, each with its colour. Wilds can substitute for all paying symbols and trigger a unique bonus feature. Last but not least are the scatters, which are denoted with a “B”. Land 3 of these for 3 free spins, here known as Wild Drops. We’ll explain all of these bonus features later in this Cluster Slide review.
Purple Low Pays
5 - 0.1x / 6 - 0.15x / 7 - 0.2x / 8 - 0.3x / 9 - 0.6x / 10 - 0.8x / 11 - 0.9x / 12 - 1x / 13 - 1.1x / 14 - 1.2x / 15+ - 3x
Green Low Pays
5 - 0.1x / 6 - 0.15x / 7 - 0.2x / 8 - 0.3x / 9 - 0.6x / 10 - 0.8x / 11 - 0.9x / 12 - 1x / 13 - 1.1x / 14 - 1.2x / 15+ - 3x
Red Low Pays
5 - 0.15x / 6 - 0.2x / 7 - 0.4x / 8 - 0.6x / 9 - 0.8x / 10 - 1x / 11 - 1.2x / 12 - 1.4x / 13 - 1.6x / 14 - 2x / 15+ - 4x
Yellow Low Pays
5 - 0.15x / 6 - 0.2x / 7 - 0.4x / 8 - 0.6x / 9 - 0.8x / 10 - 1x / 11 - 1.2x / 12 - 1.4x / 13 - 1.6x / 14 - 2x / 15+ - 4x
Green High Pay
5 - 0.5x / 6 - 0.7x / 7 - 1x / 8 - 1.5x / 9 - 2x / 10 - 2.5x / 11 - 3x / 12 - 3.5x / 13 - 5x / 14 - 10x / 15+ - 100x
Purple High Pay
5 - 0.6x / 6 - 0.8x / 7 - 1x / 8 - 2x / 9 - 3x / 10 - 4x / 11 - 5x / 12 - 7.5x / 13 - 10x / 14 - 15x / 15+ - 150x
Orange High Pay
5 - 0.8x / 6 - 1x / 7 - 2x / 8 - 3x / 9 - 4x / 10 - 8x / 11 - 10x / 12 - 25x / 13 - 30x / 14 - 40x / 15+ - 300x
Red High Pay
5 - 1x / 6 - 2x / 7 - 3x / 8 - 5x / 9 - 8x / 10 - 10x / 11 - 15x / 12 - 50x / 13 - 150x / 14 - 250x / 15+ - 500x
Cluster Slide Mobile Features
ELK developed Cluster Slide using HTML5, ensuring it can run on all devices, including mobiles. This is because HTML5 allows for games that can not only run in any internet browser, but do so while adjusting automatically to the size display they are on. This way you can play Cluster Slide anytime, anywhere, without need for any additional downloads.
Cluster Slide Bonus Features
Cluster Slide’s bonus features revolve around the wilds. There are 5 Feature Wilds, each with its own game modifiers. There are also free spins dubbed Wild Drops that are also all about the wilds!
Feature Wilds
Cluster Slide has a total of 6 different wilds. The pink wilds are the regular kind that can substitute for all paying symbols. The other 5 Feature Wilds also do this, but with the addition of a game modifier that’s triggered whenever making part of a winning combination:
- Big - expands a random symbol to 2x2 in size.
- Random - replaces 2-4 random symbols into wilds.
- Multiplier - increases the spin multiplier by +1.
- Upgrading - upgrades all occurrences of a random low-paying symbol into a high pay.
- Removing - removes all occurrences of a random symbol from the grid.
Wild Drops
Landing 3 scatters awards you with 3 Wild Drops. These are 3 free spins each with a different wild-based modifier. On the first spin the 3 triggering scatters turn into wilds and 3 more wilds are added to the reels. The second spin adds 2x2 wilds to the grid and the third drops one big 3x3 wild.
Cluster Slide Final Thoughts
Our first impression of Cluster Slide had us think this was a mere Reactoonz lookalike, but a few spins revealed it to be something much more. ELK brings a unique drop-and-slide animation to the typical Avalanche, not to mention a whole suite of modifiers through the Feature Wilds. Even the free spins are unique, as here these are also based around the wilds. Add a fantastic visual style and you’ll get a truly excellent slot. We could go on and on about it, so we’ll just say instead - give it a go!
Rating: 9.0
If you like Cluster Slide, then check out these other Space Theme slot games
Cluster Slide FAQ
These are some questions we’ve been asked about Cluster Slide:
