NetEnt

Mermaids

Slots Video Slots Fantasy Action & Adventure Mythology Sea Treasure

Underwater fantasy with separate wild-collection bonus targets

0.9% of the games we track list Guaranteed Wild In Free Spins; Mermaids is one of them.

SlotRanker Score

/ 99

05099

The SlotRanker Score is calculated from the visible data below. It is not affected by affiliate deals, and it cannot be bought.

How this score is built

RTP

96.09%

return to player

Volatility

High volatility

variance

Max win

1,974×

top multiplier

Min bet

$0.10

per spin

Reels

20 lines

Player rating

4.5 ★

9 votes

DEMO Play free, no signup

NetEnt

Embed on your site

4.5 / 5

9 ratings

User ratings are shown separately from the Slot Score unless stated otherwise.

Five weighted signals shape the composite. Four context signals refine ties. See how we rate for the full methodology.

Payouts & RTP9/10

RTP 96.09% → 9.0/10

Volatility9/10

high → 9.0/10

Win Potential6.6/10

x1974.00 (1974×) → 6.6/10

Features6/10

9 features → 6.0/10

Game Mechanics4.6/10

f=9 r=5 p=20 → 4.6/10

Context signals (tie-breakers)

Layout6/10

5x3 → 6.0/10

Bet Flexibility6/10

0.1–40 (×400) → 6.0/10

Provider Reputation7.3/10

provider avg 7.3 → 7.3/10

Popularity5/10

synthetic proxy → 5.0/10

Popularity blends real player search demand (~30 markets) with a catalogue-derived proxy; games without measurable search demand use the proxy alone. Not live play telemetry.

Cite this score

SlotRanker Score: 69 — Mermaids by NetEnt

https://slotranker.com/netent/mermaids#score

How to cite

Slot Summary

In 2024, NetEnt's Mermaids brought an underwater setting to a slot where wild symbols serve as collection targets. Their role extends beyond completing winning lines: different wilds move separate bonus tracks toward activation. That gives the sea fantasy a specific playing rhythm, with attention divided between the current result and the globes filling above it.

Bonus & Free Spins

Collecting 15 purple globes opens the Picker Bonus with 3 selections. Prizes include bet multipliers or entry into Wild Spins or Mermaid Spins, making the picks a route to different rewards.

Reaching 30 green globes awards 10 Wild Spins with additional random wilds. Green collection wilds do not appear during this feature, so its own collection symbol is excluded from the round.

At 60 white globes, the game awards 10 Mermaid Spins. This round activates random wilds and removes royal symbols, while white collection wilds also remain absent during the feature.

Spec sheet

Mermaids at a glance.

Identity

Slot nameMermaids

StudioNetEnt

Released7/4/2024

Math

SlotRanker Score69

RTP96.09%

VolatilityHigh volatility

Max win1,974×

Bet range$0.10 – $40.00

Player rating4.5 / 5 · 9 votes

Format

Reels5

Paylines20

Layout5x3

Features

Themes

Expected average based on this slot's 96.09% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$1.56

Cost per session$1.56

Estimate only, for entertainment purposes — treat gambling as entertainment, not a way to make money, and set a budget you can afford to lose.

How long could a bankroll last on Mermaids? We simulate thousands of sessions from this game's published RTP and volatility — the long-run math, not a prediction of your next spin.

Bankroll ($)Bet per spin ($)Speed

Volatility tier: High

Running simulation…

How this works

Each simulated spin either misses or returns a win drawn from a log-normal distribution, with the hit rate and spread set by the slot's volatility tier (High). The model is calibrated so the average return equals this slot's published RTP (96.09%), with wins capped at its top multiplier (1,974×).

This is a simplified, parametric model of the game's math — not its real paytable. It exists to make the house edge visible over many sessions, so the numbers above are averages across thousands of runs, never a forecast of one.

This is math, not a prediction. Real sessions vary wildly, and no strategy changes a game's built-in house edge. Play for fun, set limits, and never bet more than you can afford to lose.

Where to play Mermaids

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Compare Mermaids with other games

	Mermaids Score 69This game	King of Atlantis Score 82	Under the Sea Score 75	Andvari: The Golden Fish Score 70	Siren's Calling Score 61
Identity
Studio	NetEnt	CQ9 Gaming	Betsoft	Foxium	Kajot
Released	7/4/2024	6/15/2021	5/15/2012	8/28/2024	8/1/2024
Math
RTP	96.09%	96.17%	96.4%	96.24%	95.07%
Volatility	High volatility	High volatility	Low volatility	Medium volatility	Low/Medium
Max win	1,974×	—	—	5,000×	10,000×
Format
Reels	5	6	5	5	5
Layout	5x3	6x4	5x3	5x4	5x3
Paylines	20	4096	30	40	20
Min bet	0.1	5	0.6	0.2	0.2
Max bet	40	12500	150	5	50
Features
Progressive	—	—	—	—	✓
Wild symbol	✓	✓	✓	✓	✓
Free spins	✓	✓	✓	✓	—
Scatter symbol	—	—	✓	✓	—
Multiplier	—	✓	✓	—	✓
Bonus game	—	—	✓	—	✓
Respins	—	—	—	—	✓

Every number is shown as a delta against Mermaids.

Comparing against

Mermaids

NetEnt

RTP

96.09%

Max win

1,974×

Score

+ Scatter+ Multiplier+ Bonus Game

Andvari: The Golden Fish

+ Progressive+ Multiplier+ Bonus Game+ Respins− Free Spins

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