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Mermaid Slot - Review, Free & Demo Play

Mermaid
Mermaid
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Updated: 22.07.2025
Reviewed by: Joe Booth

Mermaid is a slot that will take you on a journey to the underwater realm full of beautiful sea creatures and hidden treasures. This game was released on 18/10/2019 by Espresso Games and it features plenty of bonuses including a progressive jackpot. In our review, we will tell you about the game’s main characteristics as well as provide you with a list of the best online casinos where you can play Mermaid for real money.

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In this review
  1. Slot details
  2. Theme
  3. Bonus Rounds & Free Spins
  4. Summary
  5. Where to play
General information about Mermaid slot

General information about Mermaid slot

Rating by Joe Booth:
9.1
User’s Rating: Not rated yet
Espresso Games
Write a review +25 SJ points
  • Release Date:
    18.10.2019
  • Volatility:
    Medium
  • RTP:
    96.5%
  • Multiplier:
    Yes
  • Max. win:
    8,100x
  • Bonus game:
    No
  • Free spins:
    Yes
  • Scatter Symbol:
    Yes
  • Wild symbol:
    Yes
  • Symbol Stacked:
    No
  • Jackpot Game:
    Yes
  • Slot lines:
    18
  • Slot reels:
    5
  • Layout:
    5-3
  • Stakes range (€/£/$):
    0.18 to 22.50
  • Slot Theme:
    Sea floor
  • Technology:
    HTML5
More infoLess info

Licensed and tested by

  • MGA

How to Play

Please do the following to play Mermaid:

  1. Launch the game
  2. Click on the “?” button to check the paytable
  3. Adjust the level of your using “+” and “-”
  4. Hit Spin

Mermaid is a video slot that has a classic 5x3 layout and 18 fixed paylines. You can place bets between €0.18 and €22.50 in this game and win prizes of over 8,000x your stake. You can also benefit from bonuses such as free spins, 2 bonus games, Wild substitutions, and multipliers. There is also a progressive jackpot in this sea-themed slot.

You can choose the game’s speed and adjust sound effects in the settings menu. The Auto button is handy if you want to automate the process of spinning the reels.

Mermaid RTP and Volatility

8.5 

Mermaid is a medium-volatility slot with an RTP of 96.49%.

This game comes with medium volatility. This parameter gives you an idea of how frequent and how big wins you should expect. The slots with medium variance offer a balanced mix of winning and dead spins and moderate prizes. The RTP rate of 96.49% is above the industry’s average. This number refers to the amount of cash you will receive as payouts for every €100 wagered.

Theme

9.6 

The underwater theme is quite popular in online slots. Espresso Games has done an amazing job designing this title. The Mermaid slot has beautiful look to it with the use of a bright colour palette and smooth animations. The soothing soundtrack creates an atmosphere of tranquillity while subtle underwater effects provide an immersive experience.

The reels are located on the bottom of the sea among beautiful coral reefs. In fact, the reels are transparent and the symbols are kind of floating in the water. The paytable consists of neatly-designed symbols representing the sea flora and fauna. You will find card royals from 10–A drawn as peculiar sea plants, a fish, a starfish, a crab, and a turtle. The latter is the highest-paying symbol.

The special symbols include a turtle Wild, a free spins symbol, 2 bonus symbols, an Extra Win symbol, and a jackpot icon. The Wilds have their own payout and can substitute for all the regular symbols. Two bonus icons and an Extra Win symbol trigger different bonus games if you manage to land a combination of at least 3 symbols on the adjacent reels. The free spins icon triggers the free spins round, obviously.

Theme

Mermaid slot paytable

Mobile Compatibility

Mermaid slot mobile

This game is mobile-friendly and provides excellent performance on any portable device. It supports all operating systems and runs across any platform. You can play the slot on your desktop or laptop as well.

About Espresso Games

Espresso Games brand was established in 2002. Ever since the company delivers online casino games of all kinds in the iGaming market. Having an impressive portfolio of slots, the studio can satisfy the needs of any player and everybody can find a game they like in the huge library of Espresso Games titles. Many online slots developed by this provider remain in the players’ top favourite lists for years. Here are just a few: Lucky 7, Treasure Island, Pogo’s Circus, Mad 4 Easter, etc.

Bonus Rounds & Free Spins

9.8 

Free Spins

You need to land at least 2 free spins symbols in any position to trigger the Free Spins round. The number of free plays depends on how many symbols triggered the feature. For 2 symbols you’ll be awarded 2 free spins, and for 3, 4, and 5 symbols you’ll get 4, 6, and 8 spins, respectively. This bonus feature can be re-triggered.

Mermaid slot free spins

Shipwreck Bonus

Three or more Shipwreck Bonus symbols on the adjacent reels activate this Bonus game where you get to choose items on the sea to collect bonus multipliers. The feature ends when either the END symbol appears or the top win of 20x is awarded.

Mermaid slot Shipwreck Bonus

Gold Bonus

With 3 or more Gold Bonus symbols on adjacent reels, the Bonus game begins. During the feature, you’ll need to click on the gold objects to collect bonus multipliers. You can win up to 20x in this game.

Giant Clam bonus

Landing at least 3 Extra Win Bonus symbols on adjacent reels will trigger the Giant Clam bonus. Just choose one of the seashells to reveal your bonus multiplier.

Mermaid slot Giant Clam bonus

Gamble

Before collecting your bonus win, you’ll have a chance to double it in a Gamble feature. You will need to find a gold coin with a mermaid to succeed. However, you can dismiss the proposal and simply collect your win.

Mermaid slot gamble

Jackpot

You can win a share of the Progressive Jackpot by landing Jackpot symbols on the reels. A combination of 5 symbols will award you 20% of the total Jackpot prize.

Other jackpot slots:

Mermaid Demo Play

On our page, you can find a free demo of Mermaid. You can play it without signing up or making a deposit. You’ll be awarded free credits to place bets in trial mode.

Max Win

8.6 

The max win is around 8,100x the bet.

The maximum win according to the demo is 184,430 coins. You will need to land 15 turtle symbols, as well as take advantage of as many bonus features as possible to receive such a prize. Also, you can win a part of the progressive jackpot by landing combinations of jackpot symbols.

Overall Rating

9.1

Mermaid is a beautiful-looking online slot full-packed with bonus features. There are 3 different bonus games and a progressive jackpot on offer, so don’t expect to get bored. This game can appeal to a wide audience of players since it’s a medium volatility slot with a decent RTP rate.

Hits
Free spins
Three bonus games
Progressive jackpot
Great visual design
Misses
Only 18 paylines
You can trigger a maximum of only 8 free spins

Mermaid Slot - FAQ

What is the most valuable symbol in Mermaid?

The turtle is the top regular symbol in this slot.

What is the RTP rate of Mermaid?

The RTP rate is 96.49%.

Does the Mermaid slot have a jackpot?

Yes, there is a progressive jackpot in this game.

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Joe Booth
Joe Booth
Expert in: News, Blog, Slot reviews, Payments
Joe is an expert online casino player, who knows all the tricks and tips on how to get to the most massive wins. He is also an experienced online casino games reviewer, with hundreds of written articles behind him, on all kinds of online casino games. He makes sure to play them, see how they work, and then gives his honest expert opinion about them to other players, our readers. 

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Reviewed by Editor-in-Chief
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