Mermaid Seas ™ – Review, Bonuses, Free Spins, Free Play in Demo Mode

Mermaid Seas is an online slot by KA Gaming. It has a medium variance and an RTP of 96.03% with 400x as its highest win. It houses a three by four reel set, sixty pay lines and additional features such as; free spins, wilds and tropical fish bonus game.

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This KA Gaming product is somewhat different and stands out decently well, thanks to its unconventional grid arrangement. Though technically designed for a 3×4 reel slot machine, it has a second 2×2 reel spin block that moves together with the primary set. These smaller reels are connected with bonus features which make each twist more interesting.

The symbols are therefore underwater-themed as the action is set under water. The highest rewards will come from dolphin, turtle and octopus which are closely followed by coral and shipwreck. In this case, the usual card symbols of ten to ace have been wrapped in seaweed to finish off.

The cartoon shark scatter is a tantalizing carrot for players to chase and offers an opportunity to enter a bonus round where tropical fish symbols are used, while the mermaid wilds can substitute for all others excluding scatter. These pay out highly especially if it appears on the 2×2 reels. The scatters have become submerged castle that leads to free spins.

Slots Temple has free demo versions of KA Gaming slots; therefore, one can dive deep into them.

Mermaid Seas ™ - Free Play in Demo Mode

Dive into the world of Mermaid Seas ™ and enjoy our exclusive Free Play in Demo mode. You can try this exciting slot without spending money to see how it works, explore its paylines, features and bonus rounds at no risk. Find your strategy in Demo mode, comprehend game mechanics and define a winning betting system for your future play. Unlock the excitement without spending a dime as you engage in Free Play, immersing yourself in the entertaining universe of Mermaid Seas ™.Discover the game's unique mechanics, visualize potential winning combinations, and master your gameplay strategy—all in a no-risk environment. Try your luck in Demo mode today and prepare for an exhilarating gaming experience when you're ready to make a splash with real wagers.

Theme, graphics & soundtrack

Mermaid Seas certainly makes quite a splash, with its unusual reels and subtly animated undersea background. From the moment it loads, it is intriguing, with some sumptuous aquatic graphics that make it a truly comfortable place to be.

Air bubbles moved slowly up towards the surface in the background while an assortment of clown fish, coral and sea anemones filled the screen. Any of this is not too much. Those soft shades and gradual ascent of bubbles are extremely calming, making it look like a slot inside of an aquarium.

The symbol design is also strong, especially the shark bonus. It could be said that Ka Gaming has opted for Toones style and the shark pops out of your screen with an enthusiastic eye-catching face that made us laugh every time it popped out!

We only have one complaint about the design, which is the music. When the reels spin, a soft, enigmatic melody starts to play for just a couple seconds. This would have been an excellent soundtrack and it’s really sad that we only get to hear it for some few moments.

Mermaid Seas
Mermaid Seas

Mermaid Seas RTP & volatility

Wavy Oceans is a moderate volatile slot with an RTP of 96.03%. It offers a maximum win of 400x, but again, this is not something that happens frequently in any slot regardless of its volatility.

How to play Mermaid Seas

Although Mermaid Seas is a bit unconventional, it might be bewildering when you load it for the first time. Don’t worry though; we’ve prepared this brief cheat sheet to get you through the first few spins:

1. Let the slot load, then go to the main menu by pressing on the i icon.

2. Every piece of information contained herein entails the paytable, paylines, game rules and an explanation of bonus features.

3. Put your wager by using the button labeled ‘new bet’ to press, and then decrease/increase your bet using – and + arrows.

4. To access autospin, you can hold down the spin button. The maximum number of spins that can be set for autospins is 200.

5. Choose how much you are willing to spend and hit the spin button. Above everything else, Mermaid Seas should be played responsibly.

Bet & win sizes

For Mermaid Seas, you can stake a minimum of 2.40 and a maximum of 240. If five matching symbols are lined up, they will pay out the total sum of 1.6x.

Let’s dive deep into the details of the highest possible profit for 5 matching symbols.

– Mermaid wild equals 1.6 times the bet – Dolphin equals 1.6 times the bet – Turtle equals 1.25 times the bet – Octopus equals 1.25 times the bet – Shark bonus is equal to 0.8 times the wager. – Coral is equivalent to a multiplier of 0.8. – Shipwreck will be multiplied by 0.8. – Ace’s multiplier is point four (x 0.4). – King’s multiplier is point four (x 0.4). – Queen has a multiplier of point four (x 0.4). – Jack is also x .04%. -Ten at x .04%

There are sixty paylines, which is really impressive and offers so many opportunities to win; with the maximum payout being 400 times the stake.

Max-win 400x
Volatility Medium
Top RTP 96.03%

Mermaid Seas bonus features

With a reel configuration that offers some unique possibilities, Mermaid Seas has a number of exciting bonus features.

– Mermaid Seas free spins

Free spins are triggered when landing castle scatters, with the number of spins dependent on symbols appearing in 2×2 reels. If all the symbols on these reels are not similar, five spins will be rewarded. If there is a wild and all the symbols on 2×2 reels are same; then you win twenty generous rounds.

Moreover, these bonus reels play a crucial role in the free spins feature. If you got five spins, all the symbols will change to new random ones and will stay in place for them. Also, if you received twenty spins, all symbols on 2×2 reel set including wild will be locked until the end of the round.

– Tropical fish bonus

When you land 4 or more bonus symbols of sharks on the wheels anywhere, a mini game starts where you have to catch fish and win an award. The prize is bigger for more fish they caught.


Mermaid Seas is an incredibly peaceful gaming set from KA Gaming. We enjoyed the calm graphics, which were quite relaxing in a world that seemed to be dominated by slots that are becoming more and more frenzied.

After landing one of the fish symbols, you will have gone through to a new screen where there are five bubbles. In this bonus round you simply select a tropical fish which reveals your bonus win. It’s all really simple stuff and lots of fun to play it with prizes for catching big ones.

For any person who desires to relax by engaging in an online slot game, then Mermaid Seas is the way to go. With awesome underwater backdrop graphics you can have a peace of mind that huge rewards are hidden within.

For other slots with a similar theme, you can also try the Mermaids Diamonds slot at Slots Temple.

Disclaimer: KA Gaming owns the trademark/license of Mermaid Seas. It is not endorsed by KA Gaming.


Can free spins be won on Mermaid Seas?

By landing scatters, players gain up to 20 free spins.

How volatile is Mermaid Seas?

This is a medium volatility slot.

What is the maximum win on Mermaid Seas?

The top payout is 400x.

Slot Info

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