Pragmatic Play · 2025 · medium volatility · free demo

Mermaid's Treasure Trove

Pragmatic Play sets Mermaid's Treasure Trove on the seabed, where a gold-rimmed 7x7 grid glows against schools of fish and sunken riches. This is not a payline slot dressed up in an underwater theme.

Mermaid's Treasure Trove facts

RTP
96.54%
Volatility
Medium
Reels
7
Paylines
5
Max win
10,000×
Bet range
0.1 – 100
Max win per spin
10,000 at max bet
Released
Game type
Slots
Provider
Pragmatic Play

RTP varies by casino. Studios release the same slot in more than one RTP build and each casino picks which one it runs, so check the RTP in this game's own info screen at the casino where you play.

Categories Aquatic

Facts from the SlotsLaunch games feed, last synced 6 Sep 2026. The rules inside the game take precedence.

Mermaid's Treasure Trove paytable and rules

Recorded from Mermaid's Treasure Trove's own information screens while the game ran in demo mode at a licensed casino, 7 September 2026. Symbol values appear exactly as the game prints them, which below means cash amounts at a $2.00 spin. A casino can run a different build of a slot, so check the game's own info screen where you play.

Mermaid's Treasure Trove symbol payouts, as cash at a $2.00 spin
Symbol 15-49141312111098765
gold crown $300.00 $140.00 $70.00 $30.00 $15.00 $10.00 $5.00 $4.00 $3.00 $2.00 $1.50
treasure chest $200.00 $120.00 $60.00 $25.00 $12.00 $8.00 $4.00 $3.00 $2.00 $1.50 $1.20
gold harp $180.00 $100.00 $50.00 $20.00 $9.00 $6.00 $3.00 $2.00 $1.50 $1.20 $1.00
gold horn $160.00 $80.00 $40.00 $10.00 $6.00 $4.00 $2.50 $1.50 $1.20 $1.00 $0.70
goldfish $120.00 $60.00 $30.00 $7.00 $5.00 $3.00 $1.50 $1.20 $1.00 $0.70 $0.60
green starfish $80.00 $40.00 $20.00 $6.00 $3.00 $1.50 $1.20 $1.00 $0.70 $0.60 $0.50
blue shell $40.00 $20.00 $10.00 $5.00 $2.50 $1.20 $1.00 $0.70 $0.60 $0.50 $0.40
SCATTERScatter
WILDWild

How Mermaid's Treasure Trove's special symbols work

SCATTER
This is the SCATTER symbol. It can appear on all reels.
WILD
This is the MULTIPLIER WILD symbol and substitutes for all symbols except for SCATTER.

Mermaid's Treasure Trove features

Tumble Feature
The TUMBLE FEATURE means that after every spin, winning combinations are paid and all winning symbols disappear except for SCATTER symbol. The remaining symbols fall to the bottom of the screen and the empty positions are replaced with new symbols coming from above. Tumbling will continue until no more winning combinations appear as a result of a tumble. All wins are added to the player's balance after all of the tumbles resulted from a base spin have been played.
Multiplier Wild Feature
This is the MULTIPLIER WILD symbol and substitutes for all symbols except for SCATTER. The MULTIPLIER WILD appears as a result of any winning combination that does not already contain an instance of it. It appears in a random position within the area of the winning combination that spawned it, after winning symbols have exploded. Whenever a WILD appears, it starts off with a multiplier of x1 and every time it is used in a winning combination, the multiplier increases by x1 and, after explosion, it moves one position randomly, up, down, left or right, within the area of the winning combination. The multiplier applies to the win of all winning combinations that contain that WILD. If 2 or more WILDS are part of the same winning combination, after the combination is paid, they merge into a single one and their multipliers add to each other. Paying symbols can carry a random multiplier attached to them. Possible multiplier values are: 5x, 6x, 8x, 10x, 12x, 15x, 20x, 25x, 50x or 100x. Whenever symbols with multiplier are part of winning combinations that contain WILD symbols, after explosion their multiplier is added to the WILD multiplier. If symbols with multiplier are part of winning combinations without WILD, the WILD created by this combination will start from the sum of all multipliers carried by symbols that exploded. If 2 or more WILDS are shared with multiple winning combinations they merge according to a priority. Priority is given first to the combinations with the most amount of WILDS, followed by the combination containing the highest paying symbol. The MULTIPLIER WILDS remain on the screen until the end of all tumbles resulted from a spin.
Free Spins
Hit 3, 4, 5, 6 or 7 SCATTER symbols to trigger the FREE SPINS feature and get 10, 12, 14, 16 or 18 free spins respectively. During the FREE SPINS, the MULTIPLIER WILD symbols stay on the screen until the end of the round. If there are MULTIPLIER WILD symbols hit on the spin that triggered the feature, the round starts with them on the screen in the same position. For each SCATTER symbols that hits during the round, 1 additional free spin is awarded. Special reels are in play during the feature.
Max Win
The maximum win amount is limited to 10,000x bet. If the total win of a round reaches 10,000x bet the round immediately ends, win is awarded and all remaining features are forfeited.
Ante Bet
The player has the option to select the bet multiplier. Depending on the selected bet, the game behaves differently. The possible values are: Bet multiplier 30x - the chance to win the FREE SPINS round naturally is 3x higher. More SCATTER symbols are present on the reels. The BUY FREE SPINS feature is disabled. Bet multiplier 20x - Normal play.
Buy Free Spins
The FREE SPINS round can be instantly triggered from the base game by buying it. Pay 100x total bet to trigger the FREE SPINS feature with 3, 4, 5, 6 or 7 SCATTER symbols guaranteed to hit randomly on the triggering spin. Pay 400x total bet to trigger the SUPER FREE SPINS feature with 3, 4,5,6 or 7 SCATTER symbols guaranteed to hit randomly on the triggering spin. During the SUPER FREE SPINS feature, multipliers on WILDS symbols start off from 10x instead of 1x.
Mermaid's Treasure Trove rules, as the game states them

Only the highest win is paid per winning combination.

When winning with multiple blocks all wins are added to the total win.

All wins are multiplied by base bet.

All values are expressed as actual wins in coins.

Free Spins round win is awarded to the player after the round completes.

Free Spins round total win in the history contains the whole win of the cycle.

SPACE and ENTER buttons on the keyboard can be used to start and stop the spin.

Malfunction voids all pays and plays.

The maximum win amount is limited to 10000X bet. If the total win of a round reaches 10000X bet the round immediately ends, win is awarded up to the cap and all remaining features are forfeited.

p05.png: How To Play / interface button legend, no paytable text

p07.png: Autoplay screen, no paytable text

Free Demo

Mermaid's Treasure Trove

by Pragmatic Play

18+ | T&Cs Apply | Gamble Responsibly

Last updated: Sep 2, 2026
Provider: Pragmatic Play RTP: 96.54% Volatility: Medium
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Slot Review

Mermaid's Treasure Trove Overview

Mermaid's Treasure Trove is a medium volatility slot by Pragmatic Play with an RTP of 96.54% . This game features Cluster paylines across 7 reels. Play Mermaid's Treasure Trove for free on Slottomat, compare the core stats quickly, and browse trusted slot offers available in your market.

Diving Into Mermaid's Treasure Trove

How the 7x7 Cluster Grid Works

You win by landing a cluster of five or more matching symbols connected horizontally or vertically anywhere on the 7x7 grid. Because the grid offers 49 positions, there is plenty of room for symbols to link up, which is exactly what cluster mechanics need to shine. When a cluster pays, those symbols are removed and new ones tumble down to fill the gaps. Fresh clusters can then form and pay again, so a single spin can chain into several consecutive wins before the action settles.

Multiplier Wilds and the Tumble Engine

The standout mechanic is the Multiplier Wild. After any winning tumble, a Wild is added to the grid carrying at least a x1 multiplier. It substitutes for all paying symbols except scatters, and it shifts position with each new tumble. When Wilds meet, their values combine, and a Wild's multiplier climbs by one for every consecutive tumble it takes part in. That compounding effect is what turns a steady run of cascades into a genuinely large payout, since the multipliers ride on top of the clusters forming beneath them.

Free Spins and Feature Buy

Landing scatter symbols triggers the free spins round, with more scatters awarding more spins. Free spins carry the cluster-and-tumble system forward and let the Multiplier Wilds accumulate across the session rather than resetting each spin, which is where the slot's biggest results tend to come from. Pragmatic Play also includes a Feature Buy option for players who would rather jump straight into the bonus instead of waiting for scatters to align, a common choice in the studio's recent high-volatility releases.

RTP and Volatility

The default return to player sits at 96.54%, right around the industry standard and slightly above the common 96% baseline. Operators may also run lower configurations, so the headline figure is the version to look for. Volatility is high, and it behaves like it: expect dry spells where clusters refuse to form, followed by tumble chains that recover a session in a hurry. That profile suits players who enjoy big swings rather than steady, frequent returns, and it makes generous balance planning sensible.

Maximum Win Potential

Mermaid's Treasure Trove caps out at 10,000x your stake. That ceiling depends on the Multiplier Wilds compounding through extended tumble sequences, typically inside the free spins round where they can stack without resetting. It is an ambitious top end for a cluster slot and a clear reason the volatility is pitched so high. Reaching anywhere near it is rare by design, but the possibility is what gives each deep tumble chain its tension.

Symbols and Theme

The symbol set fits the sunken-treasure setting, pairing higher-value icons such as mermaids and ornate jewels with lower-value gem-style symbols. High-paying symbols need smaller clusters to return something meaningful, while the low-value icons ask for larger groups before they matter. The Multiplier Wild and the scatter sit on top of that hierarchy, the Wild stitching clusters together and the scatter unlocking the free spins.

Playing the Demo on Desktop and Mobile

Because this is a high-volatility cluster game, the demo is worth a long run rather than a quick look so you can feel how the tumbles and Multiplier Wilds play out over many spins. If you enjoy this style, explore more Pragmatic Play titles such as Sweet Bonanzasson, 1GO Rush 1000, and Nile Fortune, or browse the full Pragmatic Play library.

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FAQ

Common Questions About Mermaid's Treasure Trove

Direct answers to the questions players usually ask before trying a slot.

Mermaid's Treasure Trove is a high-volatility slot from Pragmatic Play with a default RTP of 96.54% (lower 95.56% and 94.54% configurations also exist for some operators). Its high-volatility math means wins are less frequent but can be large, driven by cluster pays and compounding Multiplier Wilds.
Yes. You can play Mermaid's Treasure Trove free in demo mode at Slottomat and at most casinos offering Pragmatic Play games. The demo runs the full game, letting you test the 7x7 cluster grid, tumbling reels and high-volatility feel with no deposit and no risk.
The main features are Multiplier Wilds and free spins. After each winning tumble a Wild is added to the grid carrying a multiplier that rises by one for every consecutive tumble it joins, and Wilds combine their values when they meet. Landing scatter symbols triggers free spins, where the Multiplier Wilds can build up for the biggest wins.
Absolutely. Mermaid's Treasure Trove is built in your browser by Pragmatic Play and is fully optimised for smartphones and tablets, offering the same 7x7 cluster gameplay, features and high-volatility experience as the desktop version, in both portrait and landscape.
The maximum win in Mermaid's Treasure Trove is 10,000x your stake. Reaching it depends on Multiplier Wilds compounding through extended tumble sequences, typically inside the free spins round, which is in keeping with the game's high-volatility design.