Rainbow Riches Deluxe Slot by Light & Wonder

The most interesting thing isn't on the reels at all. It's the hourglass tower glowing on the left rail, a five-level Bonus Trail that quietly tracks every BONUS symbol you've landed on this bet. Every 50 BONUS hits push you up a tier, and each tier permanently upgrades the Gold Pot multiplier ladder you'll see inside Round the Board. The catch is that the count belongs to a specific stake. Change your bet and the trail resets to zero, then comes back where you left it if you return to that same bet later. In real-money play the progress also carries between sessions, so this is the rare base-game meta-mechanic that rewards sticking with one denomination instead of laddering up. Hit Level 5 and the trail caps; the meter stops collecting after that.

Round the Board is the only way wins land beyond regular line pays. Three BONUS scatters (and they only show on reels 1, 3 and 5) drop you onto a square track with a Leprechaun and 8 starting picks, and a Crystal Ball decides how many steps he walks anti-clockwise each turn. Four tile types do the work. Gold Pots pay a multiplier of your bet from a fixed ladder, climbing 2x, 4x, 6x and so on up to a ceiling of 768x on a single tile, with the lower rungs swapped out for higher ones as you climb the Trail. Mushrooms hand back extra picks equal to whatever number they're showing. Fairies sprinkle value across random Gold Pots and Mushrooms still on the board, so a Fairy mid-round can quietly upgrade what's waiting for you. The pick round hides one more wrinkle: the Rainbow. Landing on it fires the Crystal Ball a second time, the Leprechaun walks those extra steps, and crucially he COLLECTS the value of every tile he crosses in that path. Crossing the START tile pays 3x bet outright, unless you crossed it during a Rainbow collect.

The base game itself is built lean. The Wild substitutes for everything except the BONUS, and unusually it also pays in its own right as the top symbol, matching the Rainbow Riches logo at 2,000x line stake for a full five. That five-Wild line is also where the game's 2,000x cap on total win comes from. No buy button, no jackpots, no free spins; the Round the Board pickfest is the only feature on offer. The dressing is the classic Irish luck palette the Rainbow Riches series has run on for two decades: golden harps, four-leaf clovers, horseshoes and a grinning Leprechaun against sunny green hills under a shallow rainbow. The Trail keeps ticking through all of it.