Tiger of Fortune Slot by Evoplay

Four colours of Bonus symbol do all the work here. Red, Purple, Green and Gold lanterns each land carrying a random value, anywhere from 1x your bet up to 15x, or a stamped Mini, Minor or Major jackpot instead. They don't pay in the base game. They sit there as a promise. The moment enough of them land, the reels strip out and the hold-and-win round begins, and that's when every colour converts to Gold and locks its value in.

The conversion is the clever bit. Whatever Red, Purple and Green lanterns triggered the round all turn Gold the instant the bonus starts, keeping the numbers they were already wearing. From there it's a collect-and-fill grind: special reels spin, each new Gold lantern sticks, and you're chasing all 15 positions. Fill the board completely and the Grand at 3000x drops on top of everything you've gathered. The three labelled jackpot lanterns pay their tiers directly when they land, Mini through Major, so the bonus has multiple ways to climb without ever filling the grid.

Three boosters change how that round behaves. Extra Wealth picks one to four lanterns at random and inflates their values, adding anywhere from 0.5x up to 10x bet, though it leaves the jackpot symbols alone. Extra Reels bolts an extra row onto the grid, giving you more cells to fill. Extra Spin hands you one more attempt. You can trigger the bonus with one booster active naturally, or buy your way in with a fixed number running from the start: one booster, two, or all three, with the three-booster entry being the version the math really leans toward. Wilds, by the way, only appear on reels 2 through 5, so the leftmost reel never carries one.

The dressing is full festival Chinese garden, paper lanterns strung through green hills, a red pagoda set back against misty mountains, stone steps winding up behind the reels. A grinning cartoon tiger with a white mane lounges on top of the temple-gate frame clutching a money pouch, and the symbol set runs gold ingots and firecracker-red card royals in bright orange and green. The four jackpot meters glow across the very top, counting down to a tiger that already looks like he's won.