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Cluster Slide Slot Machine – Free Play & Review

Fur-covered and monster themed cubes, that’s what you’re going to see in the symbols used for Cluster Slide. The game area is quite large, and slightly tilted towards the left, so it’s got an unusual look. You are getting 7×8 reels in total though, and the symbols either have solid colors, are fur-themed, or have various logos (W or B). The background looks a lot more interesting, featuring images of alien landscapes and large planets in the night sky.


It’s a company which looks like it has what it takes to do well in this industry, and they’ve been slowly but surely expanding their offer with high quality slot machines. A couple of slots that we’ve seen from ELK Studios, would include titles like Taco Brothers, Electric Sam, or The Lab, among many other good releases.

Basic Information

Matching symbols in cluster
Matching symbols in cluster
Free Spins
Wild Symbol
Special Bonus Game
Online & Mobile
Cluster Slide screenshot 1
Cluster Slide screenshot 2

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How To Play It

Wagers for ELK Studios titles are all the same, requiring the use of 100 coins, with a total value for them going from $0.20 to $100. Betting strategies may be selected as well.

It’s a game with 7×8 reels, where you’re forming wins via Cluster Pays, by which I mean that you need a group of 5+ symbols that match, landing next to each other. Bigger numbers of symbols, or better ones, will help give the clusters higher values.

Special Features

Forming a cluster of symbols is only the first stage. Dropping symbols are also part of the features, so wins are removed and there will be new symbols allowed to come and form clusters. This mechanic keeps triggering, if you keep forming new clusters.

As you keep forming clusters of symbols in this game, you contribute with the symbols which are removed, to a Generator. Filling it up gets you a Feature Wild, of which there can be several types. Do this a total of 5 times in a single spin, and there is a 5x multiplier added to all future clusters formed that spin.

Types of feature wilds that you can obtain:

  • Big Wild: helps a symbol transform into a 2×2 sized version.
  • Random Wild: takes 2 to 4 symbols, and turns them into wilds.
  • Multiplier Wild: boosts the multiplier by 1x.
  • Upgrading Wild: a single random symbol is upgraded, along with all similar positions.
  • Removing Wild: takes away a single type of symbol, selected at random.

You will find regular versions of the W wild as well, symbols which are only used as substitutes for the regular symbols, in forming new clusters.

They even have a free spins feature of sorts, though they call it Wild Drops. 3 rounds are offered, in exchange for 3 of the B logo scatters. As you trigger drops here, you get 1×1 wilds instead of scatters, then two 2×2 wilds, and then a single 3×3 wild.

Maximum Payouts

Wins of up to 500x the stake are promised for a single cluster of 15+ top symbols. Keep in mind, you get free spins and multiplier wilds, and so the wins can add up quickly, even reaching 10,000x the stake. The promise made in the paytable section is that the slot can pay $1,000,000 cash.

This is only possible because it has medium-high volatility, but it’s also important to note that the RTP looks OK at 96%.


Cluster Slide gives us a good selection of features, it can pay quite well, and the features are not quite standard for a slot machine (though they’re not unique for it either). Overall, a pretty good title to check out if you are OK with the higher amount of risk that’s required for you to take on.

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