Cartoon underwater slot from Relax Gaming with sticky countdown wilds feeding a persistent x1-x5 multiplier meter and a 5,000x cap.
Shark Wash is Relax Gaming's June 2023 release that turns the usual shark theme on its head. Instead of bloody jaws and ominous music, you get smiling cartoon sharks in diving masks running what looks like an underwater car wash. The 5×4 grid sits inside a stone-frame portal on the ocean floor, surrounded by kelp, coral reef, and schools of yellow fish darting around. It's bright, turquoise, and aimed at the family-cartoon crowd rather than anyone hoping for predator menace.
Mechanically, this thing is more interesting than its bubbly art suggests. You're playing 1,024 ways across cascading reels, with a 96.06% base RTP and high volatility. Bets run from 0.10 to 200 EUR. The hook is the Countdown Wild system. Wilds only land on reels 2, 3, and 4, and each one shows up sticky with a counter from 1 to 5. Every cascade where that Wild contributes to a win, its counter drops by one. Hit zero and the Wild's starting value gets added to the Wild Meter, the circular pink “W” sitting to the left of the reels.
That meter is where the math actually lives. It has five tiers: x1, x2, x3, x4, x5. Cross a cumulative threshold and you unlock that multiplier for the rest of the round, applied to every single payout from that point on. Destroying a Wild also kicks off Re-Spins in base play, and they keep going as long as fresh wilds keep self-destructing. Meter progress carries through all of it.
Free Spins trigger from 3+ pink Bonus scatters: 7, 10, or 15 spins for 3, 4, or 5 respectively, with extra Bonuses adding a spin each during the round. And here's the part that matters most. The Wild Meter does NOT reset when Free Spins begin. Whatever multiplier tier you walked in with stays live, which makes the entry condition genuinely strategic. A Buy Free Spins option sits at 80x for 96.5% RTP and guarantees at least 3 scatters on the trigger spin. There's also a stranger Bonus Reels Mode buy that strips paying symbols out entirely, leaving only Bonus, Super Bonus, and blanks on the reels. Cost varies.
Honest gripe? The 5,000x max win is genuinely small for a high-vol modern slot, and you'll feel that ceiling. Still, the persistent multiplier collector keeps base play oddly compelling instead of pure dead-spin grinding, which is rarer than it should be.
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