Slot by Relax Gaming

Kluster Krystals Megaclusters

Updated for April 2026

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Intro
Pros and Cons
Screenshots
Gameplay, RTP and variance
Bonus Features
Mobile experience
Design, graphics and sound
Summary

Intro

Kluster Krystals Megaclusters is a Relax Gaming slot game launched in 2020. This game has a crystals theme, which has become fairly common amongst popular online slot games these days. The graphics in this game are superb and if you love games jam-packed with bonus features, then you can’t go wrong with this one. Kluster Krystals offers seven exciting features including multipliers, tumbling reels and symbols upgrades.

Players will find themselves gazing at the Northern Lights in this slot game. There are just six symbols on the reels which are mainly crystals in a variety of different colours.

If you’re looking for a high variance slot game with a huge array of bonus features and gorgeous graphics then this could be the slot for you.

Top Rated Kluster Krystals Megaclusters Casinos - April 2026

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Gameplay, RTP, and Variance

This game is played on a 5x5 grid and players are sure to be impressed by the high-quality graphics. This slot game can be played from as little as 10p per spin up to £100 per spin. Kluster Krystals Megaclusters has an RTP of 96.49% which is on the higher end of the scale when compared to other slot games. This is a high variance slot, which means it’s designed to pay out infrequently but has the potential to offer large payouts. The highest value symbol on the reels is the red crystal and landing 20 of these symbols on your reels will award you 50x your total stake. Players have two options to quicken their gameplay. Use the quick spin feature to make the game spin faster or use the autoplay function to set the number of spins you want and the bet per spin, then let the game play automatically. Paytable

Symbol	Number of symbols	Win (x stake)(min bet, £0.10)
Green Krystal, Blue Krystal	20	2.00
	18+	0.75
	16+	0.50
	13+	0.30
	11+	0.10
	8+	0.03
Purple Krystal, Pink Krystal	20	3.00
	18+	1.00
	16+	0.75
	13+	0.40
	11+	0.12
	8+	0.04
Red Krystal	20	5.00
	18+	1.50
	16+	0.90
	13+	0.50
	11+	0.15
	8+	0.07

Bonus Features

Kluster Krystals Megaclusters has a massive seven bonus features – tumble feature, symbol upgrades, multipliers, free spins round and three random mini features. If you’re a fan of the popular cascading reels found in games such as Gonzo’s Quest, you’ll be pleased to see that there are tumbling reels in this game which is the same feature with a different name. Each time a winning combo is formed, the symbols in that combo will explode from the reels and other symbols will fall to take their place, which means there is the potential for more winning combos to be formed. This process will continue as long as new winning combos are formed. Next, we have the symbol upgrades. Each symbol will be displayed in four different ways. This can be as a single piece, a double piece, a triple piece or a quadruple piece. The quadruple piece makes the symbol whole. Each time one of these symbols is next to a winning combo, this feature will be triggered and the symbols will be awarded one more piece. Players can look forward to big multipliers in this game including wild multipliers up to 10x. These symbols can also be upgraded and each time they do the multiplier will be increased up to a maximum of three times. To trigger the free spins bonus round, players have to upgrade the bonus symbol to fill in all four gold spaces and this is achieved when this symbol lands next to a cluster win. Players will then be awarded seven free spins and a bonus symbol will be upgraded to its maximum potential. With the retriggers, players can get an additional four free spins each time and there is no upper limit on how many free spins you can be awarded this way. Lastly, we have three random mini features. Players will be awarded one randomly when six tumbling reels have occurred consecutively. The first is the Krystal Vanish feature where one group of symbols, based on their colour, will be removed from the screen. The second is the Krystal Kut feature where all of the symbols made up of just one part will be removed from the reels. Thirdly, the Krystal Boost feature will upgrade all symbols by one part.

Mobile and Tablet Experience

Kluster Krystals Megaclusters is available to play on mobile and tablet devices as this is an HTML5 designed slot game. This means that it’ll adapt to fit your iOS or Android screen size and you don’t have to worry about sacrificing on the quality of the game.

Design, Graphics, and Sound

Relax Gaming has done an incredible job with the graphics and design on the Kluster Krystals Megaclusters game. The game has a crystals theme and behind the transparent reels, you’ll see a starry night sky with a hint of the Northern Lights. On the reels, the symbols are all different coloured crystals including red, pink, green, purple and blue. The green and blue crystals are the lower value symbols on the reels, while the red crystal is the highest value symbol on the reels. A mysterious and magic soundtrack plays in the background as you spin the reels which works well with the overall theme of the game.

Questions and answers

Summary

Kluster Krystals Megaclusters is a fantastic slot game from Relax Gaming that will appeal to a wide array of players. The theme is nothing unique and there are many other notable slot games with a similar crystal theme, such as NetEnt’s Starburst. Despite this, the graphics are still great. For players who enjoy slot games bursting with bonus features, this is the game for you. The free spins, multipliers and tumbling reels make this a thrilling game and provide lots of ways to land a win if you get lucky. Want to try spinning Kluster Krystals Megaclusters? Sign up to play.