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Mermaid’s Bay (Mascot Gaming) – Review & Demo Play
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Mermaid's Bay - Game Overview
I have played Mermaid's Bay a fair bit. This Mascot Gaming slot runs on a 5x3 game grid with 25 paylines and an underwater theme that keeps the pace easy. The headline is transforming wilds that change into multipliers, wild reels, or respins, plus a free spins round where those effects level up. There is a Risk & Buy option for bonus access. The layout is clean, so I could get spinning fast on desktop and mobile without fiddly menus getting in the way.
Theme, Graphics & Soundtrack in Mermaid's Bay
The vibe is calming and zen-like, with a weightless underwater feel and an ambient soundtrack. A ruined Greek temple sits in the background, hinting at hidden treasure. The two mermaids are nicely drawn and can fill a reel when their wild forms appear. There are jewelled trinkets like a crab and a pair of fish, though the reels are heavy on royals. When a random wild turns into a mermaid, the screen lifts, and the atmosphere gets a proper nudge.
Animation is subtle, more about small ripples than fireworks, which suits longer sessions. Colours hold up well on a phone. I never struggled to track wins or spot feature symbols. Audio stays out of the way until features kick in, then the cues are clear enough. It is not flash for flash's sake. It builds a steady mood, so when the mermaid wild reel lands or a respin starts, the change in tempo feels earned rather than noisy.
RTP & Volatility in Mermaid's Bay
Mermaid's Bay sits at medium volatility with a stated 46.3% hit rate, so I saw a decent stream of small to mid wins, punctuated by feature spikes. The RTP is 96% on paper. That profile made it a steady grinder for me in the base, with the free spins doing the heavy lifting when they arrived. Downswings can still bite, but the pace is fair if you keep stakes sensible and let the random wilds do their work.
Setup is quick. Controls are clear, with quickspin, fullscreen, and sound toggles tucked into the menu. The paytable updates with your stake, so checking line pays before you pile in takes seconds. Autoplay runs until you stop it, which I used in demo to gauge hit rate and feature cadence. Nothing feels cluttered, so you focus on coin wilds landing on reels two to four and what they might turn into on the next spin.
Symbols & Paytable in Mermaid's Bay
There are 15 symbols, with royals 9 through A making up the lows and three themed mids in seahorse, crab, and fish. Six special symbols round out the set, led by the coin wild, two mermaid wild reels, and the pearl scatter. Objective is simple: land identical symbols on the 25 paylines from left to right. The mermaids can cover a reel when active as wild reels, which changes how the grid reads and helps stack wins.
Headline values on five of a kind in the paytable come in as follows. Scatter pays 20x, fish 16x, crab 12x, seahorse 10x, A and K 4x, J and Q 3x, with 9 and 10 at 2x. Those numbers do not tell the whole story, as the wild behaviour can multiply or extend wins. In practice, I found stacked wild reels with a multiplier in free spins did the real damage when they aligned with mids and cleaned up the dead space.
Mermaid’s Bay Symbols and Paytable
| Symbol | Quantity | Payout |
|---|---|---|
|
| 5 | x20 |
| 4 | x3.6 | |
| 3 | x1 | |
|
| 5 | x12 |
| 4 | x3 | |
| 3 | x0.8 | |
|
| 5 | x10 |
| 4 | x2.8 | |
| 3 | x0.8 | |
|
| 5 | x6 |
| 4 | x2 | |
| 3 | x0.4 | |
|
| 5 | x4 |
| 4 | x2 | |
| 3 | x0.4 | |
|
| 5 | x3 |
| 4 | x1.2 | |
| 3 | x0.2 | |
|
| 5 | x3 |
| 4 | x1.2 | |
| 3 | x0.2 | |
|
| 5 | x2 |
| 4 | x1 | |
| 3 | x0.12 | |
|
| 5 | x2 |
| 4 | x1 | |
| 3 | x0.12 | |
|
| Scatter | |
| 5 | x20 | |
| 4 | x10 | |
| 3 | x5 | |
|
|
Wild | |
Bonus Features in Mermaid's Bay
The wild symbol is a gold coin that lands on reels two, three, and four. When it hits, it can randomly transform into one of several behaviours. In the base game, there are classic wild symbols with a 2x multiplier. In free spins, a classic wild can add plus one free spin. The big swings come from the mermaid variants. A blonde mermaid acts as a classic wild reel with 1x in base and 2x in free spins.
The brunette mermaid is also a classic wild reel at 1x in base and 2x in free spins, and she can trigger a streak respin with sticky mermaid symbols. That sticky element carries value, as the reel holds while the rest spin, giving you a shot at linking more pays across. Random wild changes keep base game rhythm from going flat. Even one reel of mermaid wild in the right place can turn a quiet board into a tidy line-up.
There is a Risk & Buy feature in some builds. I used Risk after a win to try for an expensive free spins series with a special expanding symbol. On non-winning bets, Buy let me purchase a free spins series outright. It is a handy route to the best part of the slot if you want immediacy, though I still liked earning spins via scatters because the upfront scatter payout softens variance before you walk into the bonus.
Free Spins feature in Mermaid's Bay
Two or more pearl scatters award a one-off payout of 2x, 5x, 10x, or 20x your stake. Landing three, four, or five scatters then triggers 10, 15, or 25 free spins. During the round, wild behaviour upgrades, so the mermaid wild reels carry 2x and the classic wild can add extra spins. Retriggers are possible. My stronger hits came here when a sticky brunette reel held centre and a second mermaid appeared, letting the multipliers drag mid symbols into shape.
Overall Review: Our Verdict on Mermaid's Bay
Atmospheric and easy to play, Mermaid's Bay gets the basics right. The design leans on royals, so low pays do show up often, but transforming wilds add a welcome jolt, and the free spins have genuine headroom. I rate it as a solid medium-volatility grinder with highlight moments from mermaid wild reels and the sticky respin. I kept coming back for that mix of pace and punch. For players who prefer measured slots with feature spikes, it earns a place.
Gallery of video and screenshots of the game
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Mark Rylance
Editor in Chief and Developer – AllSlotsOnline.Casino
Gambling is one of my main passions in life and I strive to help players find the best place to relax and get excited about gaming.
Last updated 28.12.2025 by Mark Rylance