Cluster Gems Slot by Zillion Games

Four multiplier tiers sit above the grid - x2, x4, x8, x10 - and every consecutive cascade pushes you one step up. That progression is the backbone of every spin on this 8x8 diamond-shaped board. Land a cluster of five or more matching gems (horizontal or vertical contact counts), watch them vanish, and new symbols drop in from above. If the refill creates another cluster, the multiplier advances. Simple chain, but x10 on a 15-gem cluster hits differently than x2 on the same match.

Nine gem types split across two pay tiers. Five smaller diamond-cut stones in blue, green, pink, red, and yellow cover the low end. Four larger, more ornate gems sit above them. The Wild substitutes for all regular symbols and belongs to multiple clusters at once when it touches two separate groups - on a grid this size, overlapping clusters happen constantly, and a well-placed Wild can bridge two matches into a single cascade chain. Five castle Scatters anywhere on the board trigger free spins, which run the same multiplier ladder. Retriggers need another five Scatters during the bonus, so they're rare on a 64-cell grid.

Pink star symbols drop randomly onto the board as Star Bombs. When one activates, it blows out surrounding cells, forcing symbols above to collapse and triggering another cascade step. You don't collect them, you don't trigger them deliberately - they just show up and extend your chain toward those higher multiplier tiers. Three Star Bombs in one spin sequence can push a modest cascade all the way to x10. Or you go twenty spins without seeing one at all. That randomness, layered on top of the fixed multiplier ladder, gives the base game a rhythm where most spins are quiet but the occasional extended chain pays disproportionately well. Borrows the Gems Bonanza grid-and-cluster formula but trades the Gold Fever escalation for a simpler four-step cap.