Rainbow Riches Cluster Magic

Barcrest reworks its long-running Rainbow Riches series into a grid slot with Rainbow Riches Cluster Magic, trading the series' usual reel-and-payline format for a 4x4 cluster grid surrounded by rows of shamrock blocker tiles, set against the familiar rainbow-and-cottage Irish backdrop the series is known for.

Wins form when five or more matching symbols touch each other vertically or horizontally anywhere on the grid. A winning cluster clears, new symbols cascade down to fill the space, and any shamrock blocker tiles touched by that win are removed too — which lets the grid grow, expanding up to a maximum size of 8x8 as more blockers come off. Low-value gems in orange, green, blue and purple pay 0.1x to 10x the stake, sitting below a mushroom and a shamrock symbol, with a leprechaun as the top regular symbol paying 1x for a cluster of five up to 250x for ten or more matching. A pot of gold wild helps complete clusters by substituting for other pay symbols.

Six consecutive cascading wins trigger the bonus round, where a spinning wheel selects one of three separate features to play. Players aren't locked into the wheel's result: a re-roll is free only if it lands on Wild Magic, while switching away from Persisting Wilds costs 8x the stake and from Infinity Games costs 5x. Whichever feature is chosen, the round begins on the fully expanded 8x8 grid with a starting allowance of 8 free spins.

Persisting Wilds adds two wild symbols per cascade in a set pattern, and those wilds stay in place for the rest of that cascade sequence, with as many as 12 on the grid at once before resetting on the next new free spin; landing six cascades in a row here adds 8 extra free spins. Infinity Games instead extends the round by one more free spin on every winning spin, while a win multiplier starting at x1 climbs by +1 with each cascade with no ceiling, running until spins are exhausted or a 250-spin cap is hit — and it carries a built-in 10x guarantee if the natural total comes up short. Wild Magic adds 4 to 16 wild symbols to the grid on every spin of the feature in fixed patterns, and a run of six or more consecutive cascades within the round adds 4 more free spins on top.

The base RTP is 96.34% at medium volatility, with a maximum win of 5,000x the stake and bets running from 0.20 to 50 per spin.