Gems Gems Gems Slot by Light & Wonder

Four reel sets spin at the same time on every base spin. One main 5x3 grid sits at the top, with three smaller mini grids stacked below it, each running its own 5 reels and 20 paylines. That's 80 lines firing simultaneously. The link that ties them together: any Wild or Feature symbol that lands on the main grid is automatically mirrored onto all three mini grids. A single stacked Wild up top replicates across three additional reel sets and triggers payline hits on all four.

The bonus trigger inherits this multi-grid logic and runs with it. Three or more Features inside a single reel set hand you 10 free spins. But if Features hit on two reel sets in the same base spin, you get 20. Three sets triggering at once gives 30. All four reel sets triggering together is 40 free spins, the dream draw. A multiplier scales with the same count and stays locked for the entire round, climbing up to 4x when all four sets line up at trigger. Multi-set triggers also pay 2x your total bet on entry, single-set triggers pay 1x. Retriggers add another 10 spins but don't reset the multiplier you locked in.

Only one reel set runs inside the bonus itself, the multi-grid spectacle is exclusively a base-game thing. Free spins use a denser alternate strip with heavier Wild and Feature concentration on a single 20-line grid. The Wild substitutes for everything except the Feature symbol. The Feature symbol has its own small line pays too (1x for four of a kind, 2x for five), so it earns a little even when it doesn't trigger the bonus.

Visually it's classic late-2000s SG Digital, dressed up with chunky stylized GEMS GEMS GEMS lettering at the top. Red rubies, blue sapphires, green emeralds, yellow citrines, purple amethysts, and clear diamonds sit against a dark navy backdrop with a soft blue radial glow. The three mini grids below the main set repeat the same gem icons in a more compact layout, which makes the screen read like a jewelry display case lit from behind.