Kluster Krystals Megaclusters

Relax Gaming sets Kluster Krystals Megaclusters on a transparent 5x5 grid positioned between two stone columns, with an aurora-lit night sky filling the backdrop and an ambient score running under the spinning reels. The presentation leans crystalline and slightly prehistoric rather than futuristic, in keeping with the game's gem-based symbol set.

Wins are formed through clusters rather than paylines: at least eight matching symbols need to connect, and the grid helps that total along by letting each position hold a single, double, triple, or quadruple version of a symbol, so two adjacent quad tiles alone can be enough to complete a cluster. Winning clusters clear from the board through an avalanche, dropping new symbols into the gaps, and the sequence repeats for as long as fresh clusters keep forming from a single spin.

Five coloured gems make up the symbol set — purple, pink, orange, blue, and green — worth between 20x and 50x the stake for a cluster of 20, and no wild appears among them. Whenever a cluster wins, symbols beside it move up one tier of stacking, edging from single toward the quad ceiling, which builds toward the next cluster more easily.

Multiplier symbols land on the grid carrying a starting value of 3x, 1x, 5x, 2x, 4x, or as high as 10x, and these too can be upgraded up to three further stages when positioned next to a win; whatever multipliers remain on the board when an avalanche sequence ends are applied to the total. After six avalanches without one of the three random mini-features appearing, one is guaranteed: Krystal Vanish strips every symbol of one gem colour from the board, Krystal Boost bumps every symbol still on screen up by a stage, and Krystal Kut sweeps away everything still sitting at its lowest, single stage.

A bonus symbol builds toward free spins by upgrading whenever it lands next to a winning cluster; once its four segments are all filled in, it releases seven free spins. Landing enough to fill the bonus symbol again inside that round tops up the count with four more.

Relax Gaming has Kluster Krystals Megaclusters set to an RTP of 96.49% at high volatility (5 out of 5), with a hit frequency of 21.39% and a maximum win of 9,921x the stake. Bet sizing runs from 0.10 up to 100 per spin.