Free slot demo · independent review

Mermaid’s Treasure Trove

Mermaid’s Treasure Trove pays clusters on a 7×7 tumble board. A Wild created by a win grows by +1x whenever it helps another cascade, and Free Spins make those Wild values sticky for the entire round.

18+ · free play · no account or deposit

Facts checked by SlotsCollector EditorialHow we check games

Mermaid’s Treasure Trove slot artwork
RTP96.54%
VolatilityVery-High
Maximum win10,000×

60-second guide

What matters before you play

Free play

Try Mermaid’s Treasure Trove for free

Use the demo to see whether the pace and bonus features suit you. It opens here and costs nothing.

Free demoMermaid’s Treasure TrovePragmatic Play
Plays here
Mermaid’s Treasure Trove slot artwork
Free play · opens here

No sign-up · no deposit · full screen available

Live demo checked 20 Aug 2026Sound controls stay inside the game

Use the demo well

Three things to watch

  1. Require the Wild to join the next win

    A multiplier increases only when its Wild participates in another paying tumble. A high value sitting beside unrelated symbols contributes nothing to that cascade.

  2. Read attached symbol boosts separately

    Paying icons may carry random 2x–100x multipliers of their own. Distinguish that one-off value from the board position occupied by a growing Wild.

  3. Map sticky positions during Free Spins

    Feature Wild multipliers remain between turns. Note whether new symbol drops continue connecting to those fixed locations rather than watching the total meter alone.

Our take

A spacious cluster slot where the most valuable object may be a Wild with somewhere useful to connect

Mermaid's Treasure Trove fills a 7×7 board and pays groups of matching symbols, then removes successful icons for another tumble. A winning combination can produce a multiplier Wild. If that Wild participates in a later paying cluster, its value increases by +1x and can continue growing through the same sequence. Paying symbols may also arrive with attached multipliers between 2x and 100x, creating sharp one-spin boosts alongside the position-based Wild development. Three to seven scatters award ten to eighteen Free Spins. The important upgrade is persistence: Wild multipliers remain in their positions throughout the feature, allowing future spins to reconnect with values built earlier. The potential is attractive, but a fixed Wild is only as useful as the symbols landing around it. A large multiplier stranded at the edge may contribute less than a smaller central Wild that repeatedly joins clusters. Very high volatility and a 10,000x maximum reflect that dependence on both value and location. Use the demo to trace one Wild from creation through each successful connection. Keep attached symbol multipliers separate, because they do not represent the same persistent resource. During Free Spins, mark the board positions that have become anchors and judge how often replacement symbols reach them. This produces a much more honest read than celebrating the largest number visible. The game fits players who enjoy board state carrying across cascades and who are comfortable interpreting cluster geometry. Those who prefer a single global multiplier may find several local values difficult to follow, especially on forty-nine positions. Its strongest quality is that progress stays visible; its main risk is assuming visible progress will necessarily find another win.

How it plays

What happens when you spin

Tumbles create opportunities, winning clusters can leave local multiplier Wilds, and the bonus makes those local values persistent without guaranteeing they will connect again.

Seven-by-seven cluster payments

Groups of matching symbols pay wherever they touch on the large grid, disappear and allow new icons to tumble into the empty positions.

Winning groups can create Wilds

A successful cluster may leave a multiplier Wild behind, giving the next tumble a fixed substitution point with an attached value.

Useful Wilds grow one step

Whenever an existing multiplier Wild belongs to another paying cluster, its value rises by one before the next replacement symbols arrive.

Free Spins preserve Wild positions

Ten to eighteen awarded spins keep multiplier Wilds on the board between turns, while normal tumbles and attached symbol boosts continue.

The position-first rule

Connection frequency matters before multiplier size

Read a Wild by the number of neighbouring symbols that can realistically form a cluster around it. A modest central value with repeated access can drive more paid tumbles than a dramatic edge multiplier that never reconnects.

Inside the game

See Mermaid’s Treasure Trove in action

Full, uncropped game views selected to show the reels, controls and features in context.

Is it for you?

Does Mermaid’s Treasure Trove match your style?

Use these points to decide whether the game's pace and features match what you enjoy.

You may like it if...

  • Cluster-pays and tumble fans
  • Players who enjoy persistent board state
  • High-volatility local multiplier growth

It may not suit you if...

  • Forty-nine cells can feel visually busy
  • Large Wild values may become stranded
  • Attached boosts and Wilds use separate rules

Compare your options

What should you try next?

Choose by the way the game plays, not just by theme or maximum win.

Want multiplying Wilds that transform from gold?

Oracle Of Gold Oracle creates 2x–3x Wilds from winning golden symbols and multiplies several in one cluster; Mermaid grows each useful Wild by repeated participation.

Prefer an expanding tumble grid?

Anaconda Gold Anaconda Gold opens more positions and raises a shared sequence value, while Mermaid's Treasure Trove keeps a fixed 7×7 field and position-specific Wilds.

Quick answers

Mermaid’s Treasure Trove FAQ

Game settings can vary between casinos. Check the information screen in the version you are playing.

How do Wild multipliers grow?

A multiplier Wild increases by +1x whenever it participates in another winning cluster during the continuing tumble sequence.

Are Wilds sticky in Free Spins?

Yes. Multiplier Wilds remain on the 7×7 board throughout the feature, giving later turns chances to reconnect with them.

Can I play Mermaid's Treasure Trove free?

Yes. Its official virtual-credit demo runs within this page, including the complete board and player controls without an external redirect.

Game facts

Mermaid’s Treasure Trove numbers and features

These are the game settings we could confirm. A casino may use a different version, so check the in-game information before playing for money.

Payouts & risk

RTP
96.54%
Volatility
Very-High
Maximum win
10,000×
Bet range
0.2 – £2

Reels & wins

Reel layout
7×7
Payout system
Cluster Pays

Bonus features

Features
Sticky growing multiplier Wilds
Free spins
Yes
Bonus buy
Yes
Jackpot
No

Release & devices

Release date
24 Sept 2025
Platforms
Desktop, Mobile
Theme
Treasure, Sea

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