Greentube

Diamond Tales: The Little Mermaid

Slots Video Slots Fantasy Mythology Magic Book Sea Witches Love Fairy tale

A Diamond Tales installment with an unfolding underwater story

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

95.04%

return to player

Volatility

—

variance

Max win

50,000×

top multiplier

Min bet

$0.20

per spin

Reels

40 lines

Player rating

4.0 ★

18 votes

DEMO Play free, no signup

Greentube

Embed on your site

4.0 / 5

18 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 & RTP8/10

RTP 95.04% → 8.0/10

Volatility8/10imputed

imputed medium (unknown) → 8.0/10

Win Potential9.4/10

x50000.00 (50000×) → 9.4/10

Features10/10

19 features → 10.0/10

Game Mechanics7.5/10

f=19 r=5 p=40 → 7.5/10

Context signals (tie-breakers)

Layout6/10

5x3 → 6.0/10

Bet Flexibility6/10

0.2–40 (×200) → 6.0/10

Provider Reputation5.5/10

provider avg 5.5 → 5.5/10

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: 76 — Diamond Tales: The Little Mermaid by Greentube

https://slotranker.com/greentube/diamond-tales-the-little-mermaid#score

How to cite

Slot Summary

Hans Christian Andersen's mermaid becomes the subject of a chapter-driven slot in Diamond Tales: The Little Mermaid. Greentube follows The Ugly Duckling within its Diamond Tales family, using collected hearts to move the story toward an ocean finale. The fairy tale is therefore part of the game's structure, with changing chapters marking advancement through its bonus narrative.

How It Plays

Pearl Hearts collect on a special reel above the main playing area. Those stored hearts matter beyond ordinary symbol wins because their values feed the game's separate collection features.

Snap Drop activates when its symbol lands on the fifth reel with a Pearl Heart already collected above. It awards a respin containing multiplier hearts whose values combine into an immediate payout.

Bonus & Free Spins

Book Bonus symbols on reels 1, 3, and 5 trigger the Diamond Tales round. It begins with 3 respins, and a new Pearl Heart or Gold Heart resets the counter so collection can continue.

Pearl Hearts add value, while Gold Diamond Hearts multiply as further hearts land on their reel. Reaching the final chapter unlocks the Ocean Feature, where the collection can include 5 Gold Diamond Hearts.

Spec sheet

Diamond Tales: The Little Mermaid at a glance.

Identity

Slot nameDiamond Tales: The Little Mermaid

StudioGreentube

Released3/28/2023

Math

SlotRanker Score76

RTP95.04%

Max win50,000×

Bet range$0.20 – $40.00

Player rating4.0 / 5 · 18 votes

Format

Reels5

Paylines40

Layout5x3

Expected average based on this slot's 95.04% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$3.97

Cost per session$3.97

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 Diamond Tales: The Little Mermaid? 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: Mediumassumed — not published for this slot

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 (Medium). The model is calibrated so the average return equals this slot's published RTP (95.04%), with wins capped at its top multiplier (50,000×).

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 Diamond Tales: The Little Mermaid

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Compare Diamond Tales: The Little Mermaid with other games

	Diamond Tales: The Little Mermaid Score 76This game	Book of Baba Yaga Score 70	Luck of the Lamp Cashlink Score 69	Mythic Maiden Score 67	Happily Ever After Score 62
Identity
Studio	Greentube	Spinomenal	iSoftbet	NetEnt	Rogue
Released	3/28/2023	10/26/2022	9/5/2024	11/26/2011	10/4/2021
Math
RTP	95.04%	96.14%	96%	96.58%	95.5%
Volatility	—	—	Medium volatility	Low volatility	—
Max win	50,000×	5,000×	250×	—	500×
Format
Reels	5	5	5	5	6
Layout	5x3	5x3	5x3	5x3	6x4
Paylines	40	10	20	30	20
Min bet	0.2	0.1	0.2	0.3	0.2
Max bet	40	100	50	15	500
Features
Progressive	—	—	—	—	—
Wild symbol	✓	✓	✓	✓	✓
Free spins	—	✓	✓	✓	✓
Scatter symbol	✓	✓	✓	—	—
Multiplier	✓	—	✓	✓	✓
Bonus game	✓	—	—	—	✓
Respins	✓	—	—	—	—

Every number is shown as a delta against Diamond Tales: The Little Mermaid.

Comparing against

Diamond Tales: The Little Mermaid

Greentube

RTP

95.04%

Max win

50,000×

Score

+ Free Spins− Multiplier− Bonus Game− Respins

Luck of the Lamp Cashlink

+ Free Spins− Bonus Game− Respins

+ Free Spins− Scatter− Bonus Game− Respins

+ Free Spins− Scatter− Respins

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01Who developed Diamond Tales: The Little Mermaid?

Greentube created the game in collaboration with RoyalCasino Denmark, pairing the Little Mermaid story with the Diamond Tales format.

02What is the maximum win in this game?

Diamond Tales: The Little Mermaid has a maximum win of 50,000x the stake. This is a payout ceiling, not a typical bonus result.

03What happens when you purchase the bonus?

The bonus purchase provides a spin on the Wheel of Features, which triggers the Diamond Tales feature.

Series

Diamond Tales

View all 4 games

Game	Year	RTP	Volatility	Slot Score
Diamond Tales: The Ugly DucklingGreentube	2022	95.04%	High volatility	80
Diamond Tales: The Little MermaidCurrentGreentube	2023	95.04%	—	76
Diamond Tales The Princess and the PeaGreentube	2023	95%	Low volatility	70
Diamond Tales: The Emperor’s New ClothesLatestGreentube	2023	95.04%	Low volatility	72

Diamond Tales: The Ugly Duckling
Greentube · 2022
RTP95.04%Score80High volatility
Diamond Tales: The Little MermaidCurrent
Greentube · 2023
RTP95.04%Score76
Diamond Tales The Princess and the Pea
Greentube · 2023
RTP95%Score70Low volatility
Diamond Tales: The Emperor’s New ClothesLatest
Greentube · 2023
RTP95.04%Score72Low volatility