Kluster Krystals Megaclusters Slot Review
Relax Gaming delivered an innovative take on the Megaclusters mechanic in January 2021 with Kluster Krystals Megaclusters, a 5×5 grid slot that blends familiar cluster-based gameplay with distinctive features. The game showcases an ethereal Aurora theme with mystical crystal symbols set against a mesmerising night sky backdrop, creating a visually calming environment despite the high-volatility mechanics beneath. This release marked Relax Gaming’s first venture with Big Time Gaming’s Megaclusters feature, and they’ve crafted something that feels both recognisable and genuinely different. The symbol upgrade system, multiplier stacking, and mini-features work together to create a gaming experience that appeals to players seeking volatility with a touch of visual finesse. Whether you’re chasing the 9,921x maximum win or enjoying the 21.39% hit frequency (better than most highly volatile slots), Kluster Krystals offers a fresh perspective on cascading gameplay.
Betting & Symbols
Kluster Krystals Megaclusters operates on a 5×5 grid using cluster-based winning mechanics rather than traditional paylines. Winning clusters require at least 8 matching symbols positioned horizontally or vertically adjacent to one another. The betting structure is accessible, with stakes ranging from £/€0.10 minimum to £/€100 maximum, accommodating both cautious players and high rollers. Symbol values are represented by krystal gemstones in various colours, with multiplier symbols (1x, 2x, 3x, 4x, 5x, and 10x) playing a crucial role in boosting win potential. The non-multiplier symbols can upgrade when positioned adjacent to winning clusters, progressing from Single to Double to Triple to Quad status. This dynamic symbol progression is core to the game’s appeal—rather than static payouts, your winnings can expand as adjacent symbols level up during the avalanche sequences.
Base Game & Features
The core mechanics of Kluster Krystals Megaclusters deliver a dynamic foundation for win generation. When winning clusters form, symbols are removed and new ones cascade downward—this avalanche mechanism can trigger multiple consecutive wins from a single spin, with each new cluster potentially generating additional payouts. The game’s standout feature is the symbol upgrade mechanic: any non-quad symbol adjacent to a winning cluster automatically upgrades one level (Single → Double → Triple → Quad). This creates cascading upgrades where a small winning cluster can trigger chain reactions of symbol improvements, dramatically expanding your total win. Multiplier symbols behave similarly but with even greater impact. Base multipliers (1x through 10x) can be upgraded up to three times, reaching a maximum 40x payout boost. When multipliers land within a winning cluster or have winning symbols adjacent to them, their values are applied to all wins in that cascade. This stacking potential is fundamental to achieving the massive 9,921x maximum win—without the multiplier feature, the game would deliver far more modest payouts.
Mini Features After Six Avalanches
After six consecutive avalanche cascades during a spin, the slot triggers one of three randomly selected mini features. These mechanics provide momentum-shifting opportunities during extended win sequences. Krystal Boost upgrades all normal (non-multiplier) symbols on the board by one level, which can trigger fresh cascades if clusters form from the upgraded symbols. Krystal Kut removes all single-level normal symbols from the grid, clearing potential dead spaces and resetting the board for new winning combinations. Krystal Vanish removes all symbols of a single colour from the reels, providing strategic symbol removal that often creates new winning clusters from the resulting cascades. These mini features add genuine tactical depth and provide psychological relief during dry spell periods, giving players the sense that momentum can shift rapidly even after seemingly frozen spins.
Kluster Krystals Megaclusters Free Spins
Free spins in Kluster Krystals Megaclusters trigger through the bonus symbol mechanic, which has four segments that must be filled. When the bonus symbol lands on the reels and appears adjacent to winning clusters, one segment fills. Once all four segments are filled (meaning the bonus symbol has upgraded to quad status from adjacent wins), the free spins round activates with 7 initial spins awarded. During free spins, the bonus symbol can retrigger, bringing 7 additional spins plus 4 extra bonus spins (11 total new spins per retrigger). The beauty of the bonus round lies in unlimited avalanche potential—because cascades are not capped, a single spin can generate multiple winning sequences where symbols continue falling and multipliers stack exponentially. Players have reported the free spins feature delivering the majority of their largest wins, as the combination of cascading mechanics, symbol upgrades, and multiplier stacking reaches peak potency during bonus rounds. The retrigger mechanism, while not guaranteed, means extended bonus sessions remain genuinely possible and have generated reported wins approaching the 9,921x theoretical maximum.
Our Honest Verdict
Overall Rating: 7.0/10
Kluster Krystals Megaclusters represents a strong entry point for Relax Gaming’s exploration of the Megaclusters mechanic. The game excels where it matters: the 96.49% RTP sits above average, confirming fair long-term value; the 21.39% hit frequency means wins arrive more regularly than typical high-volatility offerings (roughly every 5 spins); and the multiplier feature is genuinely the shining beacon that elevates win potential from mediocre to thrilling. The symbol upgrade and mini-feature systems add strategic depth that distinguishes this from more basic cluster-pays implementations. However, the 5/5 volatility rating demands players recognise this is a brutal, all-or-nothing experience—dead spins can be plentiful, and long dry spells test patience and bankroll. The visual presentation is genuinely calming, but the gameplay intensity contradicts that aesthetic. For high-volatility chasers seeking fresh mechanics and meaningful multiplier stacking, Kluster Krystals delivers. For casual players preferring gentle progression, the 5×5 cascade mechanics and frequent near-misses may frustrate more than entertain. The game promises a familiar yet distinctive experience, and it largely delivers on that promise—innovative enough to warrant exploration, balanced enough to provide genuine engagement, though demanding enough to exclude risk-averse players.
Kluster Krystals Megaclusters FAQs
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What is the RTP of Kluster Krystals Megaclusters?
The RTP of Kluster Krystals Megaclusters is 96.49%, which sits above the industry average and confirms solid long-term value for players. This has been verified consistently across multiple gaming review sites. -
How volatile is Kluster Krystals Megaclusters?
Kluster Krystals Megaclusters is rated 5/5 high volatility on Relax Gaming’s own scale. The game delivers an ‘all or nothing’ experience with infrequent wins punctuated by potentially substantial payouts. High volatility means longer dry spells, but when clusters form, multiplier stacking can generate significant wins. -
What is the maximum win on Kluster Krystals Megaclusters?
The maximum win is 9,921x your stake, achieved through the combination of cascading wins, symbol upgrades progressing from Single to Quad, and multiplier stacking reaching the 40x maximum. This potential is only realised through optimal conditions during the free spins round. -
What is the hit frequency of Kluster Krystals Megaclusters?
The hit frequency is 21.39%, meaning roughly one in every five spins will result in a winning cluster. Despite the high volatility rating, this is better than most highly volatile slots (average 15-20%), making wins feel more frequent than comparable games. -
How do the free spins work in Kluster Krystals Megaclusters?
The bonus symbol has four segments that fill when landing next to winning clusters. Once fully upgraded to quad status, free spins activate with 7 initial spins. Quad bonus symbols during the round retrigger 7 additional spins plus 4 extra (11 total new spins). Unlimited avalanche cascades during bonus rounds mean potential for massive multiplier stacking. -
How high can multipliers reach in Kluster Krystals Megaclusters?
Multiplier symbols in Kluster Krystals Megaclusters can be upgraded up to three times, reaching a maximum of 40x. These multipliers apply to all winning clusters they participate in, and when multiple multipliers land in the same cascade, their values combine—this stacking mechanism is key to achieving the 9,921x maximum win. -
What is the grid layout of Kluster Krystals Megaclusters?
Kluster Krystals Megaclusters uses a 5×5 grid with Cluster Pays mechanics. Winning combinations are formed by connecting at least 8 identical symbols either horizontally or vertically adjacent to one another, rather than traditional paylines. -
What are the mini features that trigger in Kluster Krystals Megaclusters?
After six consecutive avalanches, one of three mini features triggers randomly: Krystal Boost (upgrades all visible normal symbols), Krystal Kut (removes all single-level symbols), and Krystal Vanish (removes one colour of krystals). These provide strategic opportunities to reset momentum during extended win sequences.
