Rainbow Riches Reels of Gold Slot by Light & Wonder

Two reel banks run side by side here, and that side-by-side setup drives everything. A standard 5x4 set sits on the left, and a tall colossal set towers next to it, both spinning over rolling green hills under a blue dusk sky. The symbols are the familiar Irish-luck Rainbow Riches icons: a golden harp, four-leaf clovers, red hearts, a spotted red-and-white toadstool, yellow diamonds, clubs and spades, with the stacked golden horseshoe acting as the Wild. That horseshoe substitutes for everything except the Bonus, but it only lands on reels 1, 3 and 5 of each bank. When a stacked Wild fills one of those reels on the main set, it carries straight across to the matching colossal reel, so a single stack pays on both reel banks at once. Line count scales with your stake, climbing toward 100 lines at the higher levels.

The Fairy is the heart of the game. At any point the screen turns purple, the Fairy appears, and one of several random upgrades fires. Magic Wilds drop blocks of wilds that drift up and down before locking. Wild Burst sends butterflies onto random positions and turns them wild. Magic Symbols flips the card symbols into Wishing Wells that all reveal one matching icon. Reel Win Multipliers apply x2, x3 or x5 to the spin's reel wins. Super Wild Stacks expand a wild block to fill a reel and then push it across to the colossal set. There's also a Balloon Bonus and a Reel Win Shuffle that reorders reels to complete a win. You never choose which one lands, and the Fairy stays active in the free spins too.

Three or more Bonus scatters across both banks open a Balloon pick that hands you a win plus a batch of free spins, and it can retrigger inside the round. Before the spins begin, a Free Spins Gamble lets you risk the count on a dial for more, up to 100 spins, or collect and start. There's no buy button. Instead, Premium Play is an optional higher-stake mode of five linked spins built around Mega Expanding Wilds and a Free Spins Trail, with the Fairy and free spins both able to fire across those five spins.