Mermaid Reef Slot Review

Dive into tropical blue waters and try and discover lost underwater riches in the Mermaid Reef slot. This 5 reel, 10 payline title has been created by ReelPlay and comes with plenty of features that can create a big splash. Highlights includes the Free Spins feature where you can look forward free spins with all payouts doubled. There’s also a Pearl Bonus feature where uncovering pearls can deliver payouts of 1,295 x your stake. Look out too for stacked wilds that can fill the whole of the middle 3 reels. See what else this underwater paradise has to offer in our in-depth Mermaid Reef review.

Where to Play Mermaid Reef Slot

1
120

Bonus Spins

£400

in Bonuses

1,850+

Slots

T&C Apply

18+ New Customers only. Casino welcome bonus must be selected on sign-up. Eligibility requirements apply. BeGambleAware.org. 20 Free Spins on Book of Dead only. Claim via ‘My Offers’ within 14 days of sign-up. Free spins valued £0.10 each with 7 day expiry. 35x wagering on eligible slots. Winnings paid as cash. Casino Package deposits of £10, £20, £50 or £100 matched with bonus of same value. 14 day expiry. Total of four deposit bonuses available. 35x wagering within 30 days of depositing before bonus credited to cash. Book of Dead spins credited upon deposits; under £50 – 10 bonus spins; £50+ – 25 bonus spins. 3 day expiry. Winnings paid as cash.

2
200%

up to £60

2,300+

Slots

VR

Virtual Reality

T&C Apply

18+. New UK customers only. 200% deposit bonus up to £60. Must use bonus code “OSUK200” upon registration to receive the bonus. Min deposit £20 and 48x wagering requirements apply on bonus (game weighting applies). £3 max bet applies when playing with an active bonus. Bonus expires if not claimed within 7 days. T’s and c’s apply. Please gamble responsibly, www.begambleaware.org.

3
100%

up to £200

11

Welcome Spins

3,300+

Slots

T&C Apply

18+. New players only. Min. deposit £10. Account balance is withdrawable at any time. Upon withdrawal, any remaining bonus spins are forfeited. 7 days to activate the spins. Bonus spins expire 24 hours after activation. Play responsibly. Bonus – New players. Min. deposit £10. Wager req 35x. Bonus balance is paid with 10% instalments to account balance. Bonus balance is not playable. Max bet is £20. Account balance is withdrawable at any time. Upon withdrawal, any remaining bonus balance is forfeited. Play responsibly, begambleaware.org.

Mermaid Reef Slot RTP, Details & Wager Limits

The Mermaid Reef slot is played using a simple 5 reel, 3 row, 10 payline machine. Land 3 or more matching symbols or wilds on 1 of those paylines, starting from reel 1 to form a winning combination.

You can dive into these waters at stake levels that start at 10p per spin and rise to a maximum of £100 per spin. Autoplay is available if required too. You can run 5, 10, 25, 50 or 100 autospins. There are no options to set win or loss stop limits though. There is a left-handed mode which might come in handy for southpaws.

The Mermaid Reel RTP is 95.92% which is just below average. This rises to 96.06% if you buy the feature. Medium to high variance, the max win is 1,295 x your total stake. This will come in the Pearl Bonus feature.

Mermaid Reef Theme – Audio & Design Features – dive beneath the waves

Mermaid Reef slot base game

As you’d no doubt expect from a slot called Mermaid Reef, there’s a watery setting to this slot. The visuals are bright and colourful against the aquatic backdrop. There’s a tranquil backing track playing in the background here which is typical of a slot with this theme. It’s all simply done but the imagery and soundtrack are very easy on the senses.

On the reels you’ll see luminous A to 9 royal symbols alongside a collection of more rewarding sea life symbols. They include a jelly fish, a starfish and a goldfish. The dolphin is the most lucrative symbol. This awards 5, 20 or 100 x your total stake if you land 3, 4 or 5 across a payline.

The Mermaid is the game’s wild symbol. This substitutes for everything apart from the clam and pearl scatter symbols when it forms part of a winning combination. The wild can appear on the middle 3 reels only. It can hit in stacked formation to fill the whole of a reel, or better still, multiple reels.  There are also clam and pearl scatter symbols which trigger features.

This watery adventure is available to play on all devices. The colourful visuals and simple gameplay make the Mermaid Reef mobile slot a very easy one to play. It’s rather no-frills but it works nicely enough.

Bonus Features in Mermaid Reef

The underwater theme has been one of the most popular with online slots players and developers. That classic theme is matched by a range of bonuses and features here that will be instantly familiar to most players. They include stacked wilds, pick me prizes and of course, free spins.

Free Spins feature

The first of the 2 features we’ll look at, the Free Spins feature, is triggered by landing 3 or more pearl scatter symbols anywhere on the reels on the same spin:

  • 3 pearls = 10 free spins
  • 4 pearls = 15 free spins
  • 5 pearls = 20 free spins

All wins during the free spins are boosted by a 2x multiplier with payouts doubled. Retriggers are possible here too meaning up to 40 free spins can be won.

Pearl Bonus feature

Mermaid Reef slot Pearl Bonus feature

The second extra, the Pearl Bonus feature, is a classic pick me round which is triggered by landing 3 clam scatter symbols on the same spin. You’ll then be offered a collection of clams to choose from. Pick one to reveal a pearl, and with it, a prize:

  • White Pearls are worth between 1 and 20 x your total stake
  • Black Pearls are worth between 2 and 25 x your total stake
  • Gold Pearls are worth between 50 and 1,000 x your total stake

On each grid there will be at least 1 Gold Pearl and between 1 and 3 Black Pearls present. All other pearls are white. Keep picking until you land a Black Pearl. The maximum potential payout from the Pearl Bonus feature is 1,295 x your total stake.

In some jurisdictions, you’ll be able to buy your way into the Pearl Bonus feature for a fee of 55 x your total stake. If you do so, the RTP increases slightly from 95.92% to 96.06%. Unfortunately, this option isn’t available to UK players.

Mermaid Reef Review Summary – surprisingly simple from ReelPlay

Virtual trips beneath the waves remain popular with slots players. ReelPlay has kept to the standard formula in the Mermaid Reef slot. This is surprising as ReelPlay have developed the Infinity Reels mechanic and created unique slots that combine Infinity Reels and even Megaways with the Odin Infinity Reels Megaways slot.

You won’t find much in Mermaid Reef that you won’t have seen in plenty of other slots. Free spins with a 2x multiplier is pretty mundane. The Pearl Bonus feature can deliver some big awards but it’s just not enough.

If you’re after innovation and fresh features, this might not be for you. If you want underwater adventure, 4ThePlayer's 6 Wild Sharks or the Razor Shark slot by Push Gaming are a much better choice.

Mermaid Reef FAQs

What is the Mermaid Reef RTP?

The Mermaid Reef return to player rate is 95.92% which puts it slightly below the 96% average. If you buy the Pearl Bonus feature, the RTP rises ever so slightly to 96.06%.

What is the Mermaid Reef max win?

The maximum payout from Mermaid Reef is 1,295 x your total stake. This will come in the Pearl Bonus feature where you pick from pearls to win cash prizes.

Is there a Mermaid Reef free spins round?

Yes, land 3+ pearl scatters to trigger the Free Spins feature with up to 20 free spins. With a retrigger available, all payouts are boosted by a 2x multiplier and doubled.

What is the Pearl Bonus feature?

The Pearl Bonus feature is a classic pick and win bonus. Choose from the shells to uncover pearls which in turn deliver cash prizes. The maximum award here is a bumper 1,295 x your total stake.

Mermaid Reef Slot Information

  • Game:
    Mermaid Reef
  • Provider:
    ReelPlay
  • Type:
    Video Slot
  • Reels :
    5
  • Paylines:
    10
  • Stakes Range:
    10p to £100
  • Bonus Features:
    Yes (2)
  • Free Spins/Multiplier:
    10-40/2x
  • RTP %:
    95.92-96.06%
  • Max Win:
    1,295 x
Review by Chris Taylor

Review by Chris Taylor

Chris is a slots expert that has reviewed and played over 4,000 online slots. Having being in the iGaming industry for over 16 years, he knows how slots work, how bonus features are triggered and how the RTP and variance affect the gameplay.