Mermaid’s Treasure Trove Slot (Pragmatic Play)
Provider: Pragmatic Play
Reviewed by: Chris Taylor
Mermaid’s Treasure Trove Info
Pragmatic Play
Underwater
96.54%
Very High
7x7
Cluster Pays
20p to £5
10,000x
26.76%
2 Oct 2025
Overview
Underwater riches await in Pragmatic Play’s Mermaid’s Treasure Trove slot. Played on a 7x7 grid with Cluster Pays, Join the mermaid, at UK slot sites, from 20p per spin.
Winning clusters are formed when you see 5 or more of the same symbol adjacent to one another. When you do so, the Tumble feature triggers: winning symbols disappear with new symbols falling in for more winning opportunities.
If you land a winning cluster with no Multiplier Wild symbol, the Multiplier Wild feature is activated: a Multiplier Wild with a 1x multiplier is then added to a random position on the grid. Every time it is part of a winning cluster, the multiplier value increases by 1; it then moves position, randomly. If 2 or more Multiplier Wilds are part of a win, they merge into a single one with their multipliers also added together. Look out for paying symbols with multipliers up to 100x: When symbols with multipliers are part of a win that also contains Multiplier Wilds, their multiplier is added to the Multiplier Wild.
Then you have the Free Spins feature, where you begin with up to 18 free spins. During the feature, Multiplier Wilds stay on the grid. If you triggered the feature with a Multiplier Wild, it is carried through. Every scatter that lands will award an extra free spin, with no limits.
With a 96.54% RTP rate, Mermaid’s Treasure Trove comes with 10,000 x bet max wins: head underwater with the free demo below. Want more games? Visit OLBG’s free demo slots page for 500+ options.
Mermaid’s Treasure Trove Slot Demo
Play Mermaid’s Treasure Trove slot for real money
- Wagering req. 0x
- Value/free spin £0.10
- Offer amount £10
#ad. 18+, gambleaware.org, T&Cs Apply
- Wagering req. 10x
- Value/free spin £0.10
- Offer amount £14
#ad. 18+, gambleaware.org, T&Cs Apply
- Wagering req. 0x
- Value/free spin £0.20
- Offer amount £10
#ad. 18+, gambleaware.org, T&Cs Apply
Head Underwater
If you fancy heading underwater, I recommend the following 3 slot games:
Lord of the Ocean (Novomatic)
- RTP: 95.1%
- Max Win: 5,000x
- Volatility: Very High
- Stakes: 10p to £5
- Release Date: 15 June 2008
A Greek mythology-themed classic, Lord of the Ocean is a 5 reel, 10 payline slot featuring Poseidon, mermaids, and treasure symbols. Land 3 scatter/wild symbols to trigger free spins where a special expanding symbol dramatically boosts payouts. Though familiar in design, its under‑the‑sea theme and high win potential make it a trusted ‘Book of’‑style favourite with 5,000 x bet max wins.
Razor Returns (Push Gaming)
- RTP: 96.55%
- Max Win: 100,000x
- Volatility: High
- Stakes: 10p to £5
- Release Date: 4 July 2023
Razor Returns is played with 5 reels, 5 rows and 40 paylines. Sporting a high 96.55% RTP, it includes Mystery symbols, Nudge & Reveal mechanics, Golden Shark Instant Prizes (up to 5,000 x bet), and a free spins feature with starting multipliers up to 25x that climb with each nudge. A thrilling and visually rich sequel to Razor Shark that offers 100,000 x bet max win potential.
Dolphin’s Pearl Deluxe (Novomatic)
- RTP: 95.13%
- Max Win: 27,000x
- Volatility: Very High
- Stakes: 10p to £5
- Release Date: 13 August 2014
Dolphin’s Pearl Deluxe has 5 reels and 10 paylines, accepting wins from the left with 3 matching symbols (only 2 for top symbols and dolphin wild). Playable from 10p a spin, there is a Wild Multiplier feature where a 2x multiplier applies to all wins involving the wild. Then you have the Free Games feature where you begin with 15 free spins. With a 3x multiplier and unlimited retriggers, this straightforward land-based favourite comes with 27,000 x bet max wins.
Prefer sitting above the water? You can reel in big wins with my selection of fishing-themed slots. You have the likes of Big Bass Bonanza and Big Bass Splash from Pragmatic Play as well as Nolimit City’s Ugliest Catch, Big Time Gaming’s Golden Catch Megaways and Relax Gaming’s Lure of Fortune.
🎣 Play the Best Fishing Themed Slots Online
Mermaid’s Treasure Trove Expert Review
More Cluster Pays Games
My detailed guide on Cluster Pays slots (or grid slots) slots explains their mechanics, wins form when a certain number of matching symbols cluster together instead of appearing on paylines.
The article reviews the top 10 Cluster Pays games, offering key details like provider, RTP, volatility, max win potential, bet range, and release date. Highlights include Jammin’ Jars (Push Gaming), The Border (Nolimit City), Cluster Tumble (Relax Gaming), Hand of Anubis (Hacksaw Gaming), and more. It also discusses how Cluster Pays slots work and where to play them in the UK.
The Best Cluster Pays Slots to Play in the UK
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My guide covers where to play these games, top-rated slots by RTP and max win potential, upcoming releases, Megaways and 1000 series variants, exclusive titles, and the popular Drops & Wins tournaments. The article also highlights developer info, promotions, and platform recommendations.
