Dig It Slot by Peter & Sons

Clusters clear, new symbols drop in, and then the wilds show up. Not randomly placed - they land in the gaps left by the winning symbols, and immediately start pulling in leftovers. Any non-winning symbol that matches the cluster type gets ripped off the grid and absorbed into the nearest wild, bumping its multiplier by +1 for each one collected. A wild that eats three stragglers becomes a x4. Two wilds in the same cluster pay add their multipliers together, so x4 and x3 in one winning group means x7 on the whole thing.

Wilds don't sit still between cascades either. They shift to adjacent columns after each drop resolves, dragging their accumulated multiplier with them into new positions. In base game, the counter resets once the cascade chain ends. But 80x buys 8 free spins where the multipliers never reset - wilds stick between rounds and keep growing. The 160x option gives 10 spins with two wilds already on the grid at the start, both at x1 and ready to feed. Golden Bet at 1.5x your stake doubles the odds of landing three scatters naturally, for anyone who'd rather not skip straight to a buy.

Dark underground mine shaft behind everything, cluttered with wooden shelves, TNT crates, and loose crystals glowing against the brown rock. A grizzled dwarf miner with a lantern and a purple crystal leans against the left side of the grid, while a round yellow creature sits in a barrel on the right, clutching gems. The symbols themselves split between faceted gemstones - red, cyan, green, purple, pink - and flat colored card suits that fill the low end. Free spins can't retrigger once they start, so the round is fixed at whatever the scatter count awards (8 to 12 depending on how many land). Everything rides on how fat those wild multipliers get before the last spin resolves.