Mermaid Riches Slot by PG Soft

Most collapsing-reel slots use a standard rectangular grid. This one doesn't. Reel 1 has a single row, reel 2 has two, reel 3 has three, reel 4 has four, and reel 5 has five - a diamond shape that widens left to right across 120 ways. The deep-sea backdrop is all turquoise water and pink coral, with a red-haired mermaid resting to the left of the reels. Symbols lean into the ocean floor: starfish, clownfish, jellyfish in amber and teal, a treasure chest spilling gems, and card royals rendered in soft aquamarine outlines. It's a clean, warm palette for a game that hides some interesting Wild behavior underneath.

Wilds land on reels 2 through 5 carrying a durability number - 1, 2, or 3. Each time a Wild participates in a winning combination, the counter drops by one. Hit zero and it self-destructs. A Wild stamped with 3 survives three separate cascade rounds before disappearing, which means it can anchor wins across multiple drops in a single spin. On top of that, a Special Sticky Wild relocates to a random reel position at the start of every spin. It follows the same durability rules but its movement guarantees it won't sit dead on a cold column. The multiplier above the reels progresses through x1, x2, x3, x5 with each consecutive cascade win - familiar PG Soft territory if you've played the Mahjong Ways series, though the asymmetric grid changes how cascade chains actually develop since each reel contributes a different number of symbol positions.

Three scatters trigger 8 free spins (2 more per extra scatter, retriggerable). Two things change. The multiplier tiers double to x2, x4, x6, x10. And the grid flips - reel 1 expands to 5 rows while reel 5 shrinks to 1, mirroring the base game layout. That reversal shifts where symbols cluster and where Wilds have the most adjacency potential, which is a less obvious change than the multiplier bump but probably matters more for how the cascade chains connect.