Kluster Krystals Megaclusters is a video slot from Relax Gaming built on a 5x5 grid and the Megaclusters concept. Wins are formed through clusters rather than paylines, with neighbouring symbols upgraded after a winning cluster lands. These upgrades can create double, triple or quad symbols, while associated multipliers can rise to three times their original value.
The game uses avalanche mechanics, allowing new symbols to drop into place after wins. A sequence of six avalanches activates one of three Krystal mini-features: Krystal Vanish removes one colour group from the board, Krystal Boost upgrades every visible normal symbol, and Krystal Kut clears all visible single normal symbols. The slot has high volatility and an RTP of 96.49%, with bets from €0.10 to €100.
When a bonus symbol lands near a winning cluster and is upgraded to a quad symbol, the game awards seven free spins. During the free spins, additional quad bonus symbols can retrigger the feature and add four more spins. The demo version is available to play for free, which allows players to practice before playing for real money.