Undine’s Deep Slot

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500% UP TO $5,000 + $10 Free Full bonus terms


500% UP TO $5,000 + $10 Free Full bonus terms

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Dip your toes into the water with Undine’s Deep, the online video slot from Endorphina where you could discover a mystical underwater world if you dare to dive down. A stunning seascape with fish, molluscs, jellyfish and coral in an array of colours awaits, as well as some of the less conventional marine life such as mermaids… Swim through the gentle current to see what goodies lie ahead in this aquatic adventure.

Small but perfectly formed, this isn’t the biggest game from this developer, but 10 paylines still provide plenty of opportunities for a win. From the tiniest details to the overall theme, this well designed game gives players a glimpse at what lies beneath the waves but will you sink or swim? Here’s a review of Undine’s Deep from Endorphina with all the info you need.

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Focus on the Reels

This is such a beautiful design, it’s very easy to get distracted by what’s going on in the background with the sea plants undulating in the current and the tiny seahorses scurrying across the bottom of the screen. However if you want to win prizes, there’s only one thing you need to focus your attention on and that’s the five reels which stretch across the centre of your screen.

Although the reels are big and bold they only contain 10 paylines which makes this one of the smaller games from this developer. You can choose to play on even fewer paylines if you prefer by clicking on the “lines” button which displays the number on the right. This allows you to play on as many of the 10 available paylines as you like. Aside from changing the paylines, you can also decide to set the betting level so you don’t blow your budget with the first spin. The entry point is just one coin per line, giving a total min bet of 10 which can be increased up to 10 coins per line, giving a total max bet of 100. Before making your final decision, you might want to check out the paytable to see the prizes which are on offer in return.

Underwater adventure

Your main aim will be to match up symbols along an active payline, but you can also get some help in winning prizes from the extras which are available on the reels. Wilds are a common feature in many slots and they make an appearance here in this creation from Endorphina. Wilds are represented by the fish with the beautiful flowing golden fins and can substitute for any of the other symbols on the reels apart from the scatter. Any winning line which includes a wild to make the match will automatically be doubled in value.

Scatters are also included in Undine’s Deep and are represented by that most elusive of saline creatures: the mermaid. Scatters count no matter where they appear on the board; they don’t need to line up on an active payline like the rest of the symbols. If you land three or more of the scatters, you’ll unlock the free spins game where you’ll be handed 15 free turns to play on. This prize can be retriggered during the free spins phase. All prizes which are won during free spins will be automatically trebled.

Watery Worlds

If the relative peace and serenity of the world underwater has soothed your soul and you want to play more similar slots, you’ll have lots of choice – there are plenty to pick from. Pearl Bay from High 5 Games is based on a real life location which is famous for its stunning coral reefs. However, this beautiful bay is also rumoured to be the home to many mermaids and this is what the game is based on. Forty paylines combine with stunning graphics which show off a whole host of mermaids and mermen, plus a free spins round, too.


Undine’s Deep from Endorphina takes the legend of mermaids are brings them to life in a beautifully tranquil setting. All you need is a little bit of belief to see the mythical creatures on your screen! There’s not a huge long list of bonus features but the free spins can be retriggered and potentially offer a lucrative prize. Players who are chasing the big wins might find this falls a bit short, but for everyone else, Undine’s Deep is an enjoyable play.