Mermaid’s Treasure Trove (Pragmatic Play) – Review & Demo Play

Mermaid’s Treasure Trove - Slot Overview

As an experienced slots player, I put Mermaid’s Treasure Trove through its paces. It’s a 7x7 cluster pays grid with cascades, roaming multiplier wilds, and a free spins round where those wilds stick on the board. The backdrop is a sunken city with the mermaid gliding beside the grid. Stakes start at 20p a spin, the model is high volatility, and the default RTP sits at 96.54%. Pay symbols can land with multipliers that feed wild values, which is the hook that drives most sessions.

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RTP, Volatility & Max Win in Mermaid’s Treasure Trove

The default RTP is 96.54%, with alternative settings of 95.56% and 94.54% used by some sites. Volatility is very high, so stretches of quiet play can occur before values snowball. The max win is 10,000x stake, with odds for that top hit quoted at about 1 in 66,666,667 spins. Expect a base hit rate around 26.7% and a bonus trigger near 1 in 431 spins. Those figures reflect the swingy nature here, and they match how my sessions felt.

Symbols and Paytable in Mermaid’s Treasure Trove

Clusters of 5+ adjacent symbols pay, with two tiers of pays. Lows are a blue seashell, green starfish, and gold fish. Highs are a horn, harp, treasure chest, and crown. For 15 or more in a cluster, lows return 20x to 60x, while highs award 80x to 150x. At the bottom end, 5-symbol clusters sit from 0.2x to 0.75x depending on the icon. The mermaid acts as the scatter, while a bubble Wild stands in for pays.

Regular pays can land with multipliers from x5 up to x100. When such a symbol forms part of a win with a Wild, its value is added to the Wild’s current multiplier. If no Wild is present, one is created with that value. This sits alongside the merge behaviour for multiple Wilds, helping a single piece carry serious weight. These bits of arithmetic keep the paytable relevant to the feature play, which is why even smaller clusters can matter.

Mermaid’s Treasure Trove Symbols and Paytable

Symbol	Quantity	Payout
	15+	x150
	14	x70
	7	x1.5
	6	x1
	5	x0.75
	15+	x100
	14	x60
	7	x1
	6	x0.75
	5	x0.6
	15+	x90
	14	x50
	7	x0.75
	6	x0.6
	5	x0.5
	15+	x80
	14	x40
	7	x0.6
	6	x0.5
	5	x0.35
	15+	x60
	14	x30
	7	x0.5
	6	x0.35
	5	x0.3
	15+	x40
	14	x20
	7	x0.35
	6	x0.3
	5	x0.25
	15+	x20
	14	x10
	7	x0.3
	6	x0.25
	5	x0.2
	Scatter
	Wild

Cluster Pays & Cascades in Mermaid’s Treasure Trove

Every win clears from the 7x7 grid and triggers a tumble. New symbols drop into the gaps, and the process repeats while fresh clusters form. This loop is central to the rhythm of the slot, as tumbles are when Wilds spawn, build, and shift across the board. Consecutive clears can string together tidy returns from one paid spin, and the board coverage matters a lot since bigger clusters both pay better and create more space for features to kick on.

Multiplier Wilds in Mermaid’s Treasure Trove

After any winning cluster that didn’t include a Wild, a Multiplier Wild drops into an empty space at x1. Each time it helps another win, it grows by +1, then steps one tile in a random direction. It sticks around for the entire tumble sequence, only leaving once the spin ends. Positioning matters; a central Wild tends to catch more clusters than one parked on an edge, and a single long chain can turn a small start into something meaningful.

If multiple Wilds connect in the same win, they merge into one and their values add together, with priority given to the combo involving more Wilds, then the higher-paying cluster. Regular pays can also drop with multipliers between x5 and x100. When they land in a win with a Wild, that value feeds the Wild’s count. If a Wild isn’t present, a new one spawns carrying the combined figure. That’s the route to chunky single-Wild numbers.

Bonus Buy Feature

Free Spins 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.
Feature Cost:	x100 Bet
RTP:	96.52%
Volatility:	-
Seper Free Spins During the SUPER FREE SPINS feature, multipliers on WILDS symbols start off from 10x instead of 1x.
Feature Cost:	x500 Bet
RTP:	96.54%
Volatility:	-

Free Spins and Super Free Spins in Mermaid’s Treasure Trove

Land 3 to 7 scatters to trigger 10 to 18 free spins. Any Multiplier Wilds on the triggering spin carry into the bonus in the same spots. During free spins, Multiplier Wilds stay on the grid until the feature ends, growing as they contribute. Extra scatters add +1 spin with no hard cap. The shift and merge behaviour applies as usual, so keeping the board alive with clusters is the name of the game here.

You can buy the feature for 100x stake or jump to Super Free Spins for 400x, where every Wild starts at x10. Super tends to supply the biggest spikes, though it can still whiff on a cold setup. There’s also an ante bet that raises scatter odds at the cost of a 50% higher stake. Super isn’t available as a natural trigger, so the only path to that head start is the buy.

Mermaid’s Treasure Trove - Verdict

I like the clean build and the way wins snowball when Wilds absorb symbol multipliers. Base play can feel quiet until a chain gets going, but the bonus picks up fast because Wilds don’t leave. The merge can be a touch annoying when I’d rather have coverage, though the added values do help. Super free spins gave me the strongest peaks thanks to the x10 leg up. With a 10,000x cap, it can pay, even if the theme feels familiar.