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Deep beneath the waves is a beautiful red-haired mermaid waiting to take you on a slot adventure of a lifetime on the reels of Siren' Kingdom. This underwater fantasy slot will have players glued to their seats as they try to make a splash and win some big prizes. 

The game is created by NYX, alongside developer partner for this game Iron Dog Studios, and it has five-reels and three rows.  The slot also has thirty fixed paylines, which mean that all must remain active throughout and cannot be decreased or increased.  As well as thirty payline, on Siren's Kingdom, you have two fantastic bonuses, an expanding wild and a free spins round, which may help you chase down the game's jackpot of 400x your stake; which can be a minimum of 30p or a maximum of £500.

Our Verdict: The most important aspect of any mobile casino game is its gameplay and Siren's Kingdom is a game which most slot fans will enjoy. The game is fast-paced, with lots of exciting action and does not have any overly complex bonus features. Instead, what is on offer is two bonus features which are rewarding and straightforward.  The game is also very well-designed, with a fantastic underwater scene providing the backdrop for the reels. Two the side of the reels players will also see the mermaid Siren welcoming you on to the game with her mermaid charm. Listen out too for the sound effects, which work very nicely with the theme of the game.

Wild Symbol:  On Siren's Kingdom there are two symbols players will want to pay attention too, the scatter octopus symbol and the wild Siren the mermaid symbol.  Firstly, you have the scatter which is important as it triggers the bonus feature. Then you have the wild siren symbol, she is a symbol which players will look out for as she can help complete combinations. She will do this by substituting for all other symbols on the reels, except the scatter octopus, however, will substitute for the playing card symbols of 10 – A and the sea themed symbols.

Expanding Wild:  The Siren Wild symbol is also important as she is not just your typical wild symbol. The mermaid wild, Siren's Kingdome, is instead an expanding wild symbol which only can land on the top position of a reel. As an expanding wild when she lands she will expand and fill the entire reel and increase the potential to create wild combinations. Multiple wilds can land and expand at the same time.

Free Spins: The free spins feature on Siren's Kingdom can be triggered by landing three, four or five of the Octopus carrying a pearl scatter symbols on a single spin. This will award 14, 25 or 36 free spins. During the free spins there will be no expanding wild, however, the Siren Wild symbol will be a sticky wild and will also expand to adjacent reels. After a few spins, the wild will disappear from adjacent reels. two adjacent reels.