Mermaids Slot Review
NetEnt have cultivated a distinctive visual signature throughout their catalogue, and Mermaids exemplifies this polish with a subaquatic world rendered in stunning detail. Released on 6 September 2024, this underwater-themed slot carries the expected production values of an established developer entering what has become a crowded mermaid-themed space. Rather than attempting to reinvent the genre, NetEnt have leaned into thematic immersion and gameplay clarity, positioning this release as an accessible entry point with moderate mathematical demands compared to their higher-volatility catalogue.
Base Game & Features
Mermaids operates across a 5×3 grid with 20 paylines, a straightforward structure that prioritises clarity over mechanical complexity. The theoretical RTP sits at 96.09% (with an alternative 94.10% setting available for operators), placing it competitively within modern video slot standards. The maximum win potential reaches 2,007x your stake, whilst the high volatility classification signals that wins occur less frequently during regular play, though with more substantial payouts when they do materialise.
The base game introduces a mechanic that differentiates Mermaids from typical scatter-trigger designs: the Progress Wild system. Rather than awaiting specific symbol combinations, players collect three distinct Progress Wild types (purple, green, and silver) that accumulate across spins. Each type progresses a dedicated globe counter towards bonus triggers. This collection element maintains player engagement by providing a tangible progression system distinct from the usual static trigger mechanics.
The regular wild symbol substitutes for all paytable symbols and counts as the highest winning combination on any single spin. The mermaid symbols themselves form the premium tier of the paytable (distinguished by hair colour), whilst traditional card values (10, J, Q, K, A) decorated with seaweed and bubbles occupy the lower-paying tiers. The base game can trigger modest modifier effects, though significant win enhancements rely on reaching the bonus features outlined below.
Bonus Features & Free Spins
Mermaids features three distinct bonus rounds, each triggered by accumulating Progress Wild symbols of a specific colour. This progression-based system removes the unpredictability sometimes associated with scatter volatility, instead rewarding consistent engagement across sessions.
Picker Bonus
Collecting 15 purple Progress Globes triggers the Picker Bonus, a treasure-selection feature offering three picks from hidden treasures. Multiplier picks range from 2x to 50x stake, with alternative paths to unlock the other bonus features. The relatively shallow collection requirement positions this as the most frequently occurring bonus mode, providing baseline win opportunities without extended triggering periods.
Wild Spins
Accumulating 30 green Progress Globes awards 10 free spins with the Random Wilds feature active throughout. This modifier places 2 to 6 regular wild symbols onto random reel positions on each spin, substantially increasing win frequency during the feature. No explicit retrigger mechanism is documented, though the wildcard density ensures meaningful win potential across the 10-spin allocation.
Mermaid Spins
The most demanding trigger requires 60 silver Progress Globes, unlocking Mermaid Spins—10 free spins with two crucial modifiers active simultaneously. The Random Wilds feature applies (2-6 wilds per spin), but more significantly, all low-paying card symbols are removed from the reels entirely during this mode. This symbol elimination fundamentally alters the win dynamic, concentrating payouts around the premium mermaid icons and ensuring that wildcard connections matter substantially more than in base gameplay or the Wild Spins feature. The difficulty-to-reward ratio positions Mermaid Spins as the aspirational bonus outcome.
Notably, Mermaids offers no bonus buy or ante bet feature. Progression toward bonus triggers occurs exclusively through regular gameplay, which either appeals to players who prefer traditional activation mechanics or frustrates those accustomed to purchasing features directly. This decision aligns with NetEnt’s design philosophy of maintaining gameplay engagement through natural progression rather than shortcutting the feature acquisition process.
Our Honest Verdict
Mermaids succeeds as a visually accomplished package with thoughtful bonus architecture. The underwater aesthetic demonstrates NetEnt’s continued attention to graphical quality—the deep ocean landscape, submerged ruins, and animated coral formations create genuine thematic immersion. The Progress Wild mechanism offers a legitimate differentiation point within the mermaid-themed landscape, providing structured progression that feels rewarding when globes accumulate toward bonus triggers.
However, the 2,007x maximum win sits at the conservative end for a high-volatility game. Players chasing truly substantial multipliers will find the win potential underwhelming, particularly when comparing to non-NetEnt high-variance releases that frequently exceed 5,000x or 10,000x caps. At the maximum £20 stake, the absolute ceiling reaches approximately £40,140—respectable but not exceptional for the volatility classification. The symbol removal advantage of Mermaid Spins partially compensates, but reaching 60 silver globes demands either extended session commitment or fortunate clustering of purple/green/silver wild appearances.
The game will more than suffice for new players seeking accessible gameplay without mechanical complexity, NetEnt brand enthusiasts comfortable with the developer’s moderate-to-high volatility approach, and theme-focused players valuing visual design and immersion over maximum win potential. Conversely, big-win chasers should look elsewhere—the mathematical model simply doesn’t deliver explosive top-end outcomes. Players prioritising consistent base-game action may find the high volatility frustrating, as dry spells between bonus triggers are inevitable.
Mermaids occupies an interesting position: a polished, accessible, visually excellent slot that sacrifices mathematical aggression for design coherence. It’s a viable complement to any NetEnt-heavy casino lobby, though unlikely to drive engagement among players exclusively motivated by maximum win mathematics.
Frequently Asked Questions
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What is the RTP of Mermaids slot?
The RTP of Mermaids by NetEnt is 96.09% (with an alternative 94.10% setting available for operators). This is a favourable RTP for modern video slots, offering players a better theoretical return to player percentage. -
What is the maximum win on Mermaids?
The maximum win potential on Mermaids is 2,007x your stake. This is the highest possible payout you can achieve in the game, available through the high volatility gameplay and bonus feature combinations. -
Does Mermaids have free spins or bonus features?
Yes, Mermaids features three main bonus rounds: Picker Bonus (triggered by collecting 15 Purple Progress Globes, offering multiplier picks up to 50x), Wild Spins (30 Green Progress Globes for 10 free spins with Random Wilds), and Mermaid Spins (60 Silver Progress Globes for 10 free spins with Random Wilds and low-value symbols removed). -
Can I play Mermaids on mobile devices?
Yes, Mermaids is fully mobile compatible. NetEnt’s game uses HTML5 technology and is optimised for all device resolutions and screen sizes, allowing you to play on iOS and Android devices, smartphones, tablets, and desktops without compromising quality or performance. -
Does Mermaids have a bonus buy feature?
No, Mermaids does not have a bonus buy or ante bet feature. NetEnt deliberately kept the game without these options, meaning bonus rounds can only be triggered through regular gameplay by collecting Progress Wild symbols. This maintains a traditional progression to unlock bonus features. -
What is the volatility of Mermaids slot game?
Mermaids is classified as a high volatility slot game. This means wins occur less frequently during play, but when they do land, they have the potential to be substantial. High volatility games are suitable for players who prefer variance and have adequate bankroll management. -
How do you trigger the bonus rounds in Mermaids?
Mermaids uses a Progress Wild mechanic. There are three types of Progress Wilds (purple, green, silver) that appear on reels and gradually fill separate progress globes. Collect 15 purple globes for Picker Bonus, 30 green globes for Wild Spins, or 60 silver globes for Mermaid Spins. Each bonus requires collecting the appropriate coloured Progress Wilds during regular gameplay. -
What symbols and features are in the Mermaids slot?
Mermaids features four unique mermaid symbols (blonde, ginger, purple-haired, and white-haired mermaids), traditional card values (10, J, Q, K, A) decorated with seaweed and bubbles, four types of wild symbols (three Progress Wilds and one regular wild), and the Random Wilds feature that places 2-6 additional wilds on the reels during bonus rounds.
