Crystal Clusters Review - Cascades, Cell Multipliers and RTP
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Crystal Clusters - official features and review
Crystal Clusters builds its cave exploration around a simple distinction: winning once marks a position, while winning there again develops its multiplier. The bonus changes how long that work survives.
Written by Cryptogambler. Updated November 2, 2026.
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A mine built around connected symbols
Released on August 25, 2025, this BGaming slot uses a 7x7 field of colored gems. Five or more identical symbols must touch vertically or horizontally to form a paying cluster. Diagonal contact alone does not connect a group. There are no conventional paylines to follow across the screen.
After a cluster pays, its symbols disappear and replacements drop into the spaces. Further clusters can then pay within the same initial spin. This refill sequence ends when the new arrangement produces no winning cluster. The changing grid matters because a later drop can revisit positions that an earlier win has already marked.
Why a marked cell is not yet a multiplier
The August 2025 rules distinguish the first mark from a subsequent win. When another winning symbol uses an already marked position, a cell multiplier starts at 2x. Further wins there add another 2x, up to 128x. That is a linear increase; it should not be confused with doubling the value at every step.
When several multiplier cells belong to one winning cluster, their values are added for that payout. They do not multiply each other. In ordinary play, marks and multipliers last through the refill sequence and clear before the next spin. Consequently, an attractive grid at the end of a base-game spin is not progress saved for later.
Free Spins preserve the excavation
Three, four, five, six or seven Scatters award 10, 12, 15, 20 or 30 Free Spins respectively. At most one Scatter appears on each reel. The same Scatter counts can retrigger the bonus with the corresponding number of additional spins.
Inside Free Spins, marked positions and their multipliers remain until the round ends. This persistence gives the feature its identity: several separate spins can use the same developed cells. A Buy Bonus option is also described in the rules, with the current purchase price shown in its window and adjusted to the selected bet.
BGaming lists 96.50% RTP, very high volatility and a 5000x maximum multiplier. The public rules leave runtime RTP values, including the purchase figure, as placeholders, so the profile percentage should not be extended to every mode without checking the game information. RTP is a long-run statistic rather than a session target.
The clear gem colors make cluster connections readable, while the persistent bonus grid adds more to monitor than a basic line slot. Its appeal is the evolving field, but a marked area alone promises no future win. A useful demo exercise is to follow one position through a refill and then compare its reset with what happens in Free Spins.
Frequently Asked Questions
