Siren’s Kingdom Slot Game

Play Siren’s Kingdom with 1000% Bonus up to £1,000

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Siren’s Kingdom is a 96.18% RTP Online Slot Game by IronDog.

Siren’s Kingdom Screenshot 2021

Siren’s Kingdom Slot Game Summary

In the magical depths of Siren’s Kingdom slot you find a magical underwater wonderland, with colourful coral and pretty mermaids. Behind the transparent reels, you sink to the bottom of the ocean while a mermaid floats by. High to medium value symbols include a fanshell, a spiral shell, a conch, and a starfish. There is also 2 Wild mermaids and a Free Spins octopus. Lower value symbols are represented by standard playing cards A, K, Q, J, and 10. Visually, Siren’s Kingdom online slot submerges you into an underwater environment with graphics so amazing that you may be holding your breath. This is produced with floating bubbles and creative animations on the reels per win, for example the mermaid Wild swimming. The dramatic background music further enhances the mystical quality and each spin has the sound effect of swishing water. Rose online slots is the name of your submarine where you can discover many potential rewards at the bottom of the sea.

Siren’s Kingdom Bonus Round 1

Siren’s Kingdom Slot Developer

Sending you on an underwater adventure in Siren’s Kingdom slot is online casino games developer Iron Dog Studio. Iron Dog has a “passion to create new concepts that will entertain players” and they achieve this with a focus on impressive visuals, thrilling features and themes, and exiting bonuses that yield many opportunities for major wins. offers many other Iron Dog titles for players of online casino UK to enjoy such as ‘Gifts of Ostara slot game’, ‘Blood Queen’, ‘Neon Jungle’, ‘Cherry Blast uk slot’, and ‘Treasure of Horus’.

Siren’s Kingdom Online Slot Gameplay

Luckily, Siren’s Kingdom online slot does not require you to hold your breath or fight any sharks as gameplay is easy to learn, exciting, and engaging. With 5 reels, 3 wager rows, and 30 paylines, you may be swimming through many major payouts. During the main game, more than 1 of the mermaid Wilds can float at the top of the reels and expand to cover all the spaces below. This stacked Wild or Wilds will replace all other symbols, except Free Spins, to award wins. 5 of the Fanshells on the reels represent the highest payout with 400 coins on your initial bet. This is followed by 5 of the spiral shell winning 300 coins. Betting in Siren’s Kingdom slot flexibly ranges from 30p to £150. If you need a moment to dry off in the sun, set the AutoPlay for 5 to 99 continuous spins. While thousands of leagues under the sea, you can play Siren’s Kingdom online from your cozy submarine as it is nicely designed and compatible as a mobile slot. With Wild features and an exciting bonus, the theoretical RTP is estimated at 96.18%.

Siren’s Kingdom Bonus Round 2

Siren’s Kingdom Slot Bonus Features

Like a precious oyster that can appear anywhere on the sea floor, so too can the generous Octopus on the reels in Siren’s Kingdom online. 3, 4, or 5 Bonus symbols awards 14, 25, or 36 Free Spins respectively. With that many opportunities you might feel yourself waterlogged with amazing wins. Even more exciting is that there is a sticky Wild mermaid that appears on the reels and, in the 2nd Spin of the Bonus, will expand out for even more winning combinations before swimming away on the 3rd Free Spin. With many ways like this to win generously, you will be saying with a smile that any’fin’ is possible and you may just get what you ‘fish’ for.

Siren’s Kingdom Bonus Feature

Siren’s Kingdom

Siren’s Kingdom is a mermaid inspired UK slot developed by Iron Dog Studios in 2018, which has since grown in popularity and has become an established slot within this popular theme. This slot is perfect for anyone interested in mermaids and myth, featuring some of the most modern features at this online slots casino. The best parts about this slot have to be a strong RTP of 96.18% for above average chance of winning, a strong betway pattern of 30 ways to win and a huge jackpot up to £150,000. For a huge jackpot and a nice chance of winning, you know which slot to go to.

In 2021, Siren’s Kingdom (Iron Dog Studios) has been available to play here at for three years, making it one of the more modern mermaid themed slots at this online slots casino. Themes of myth and mermaids are rather popular at this online slots casino, with plenty of slots being added to this theme each day by all developers. Iron Dog Studios really capture this theme through high definition graphics and animated effects. This slot shows the perfect style of modern development, featuring lots of colour and video effects. Although this slot was introduced to this online slots casino just a few years ago, Iron Dog Studios have still managed to make advancements for 2021. The improvements  made to this slot involve compatibility, giving you the chance to play this slot across a range of devices. Technology of online slots is always changing, and Iron Dog Studios have managed to keep up with these changes through JavaScript development. This allows Siren’s Kingdom to be played across all major devices from mobile to desktop. 

Siren’s Kingdom has stuck to its strong features of variance since its introduction, offering a fair RTP rate. However, in 2021 this slot is of even higher value with the chance to win up to £150,000. By keeping the variance the same and offering higher payouts, Iron Dog Studios have seriously improved this slot in just three years. Of course, these developers have maintained a strong slot to compete with all other mermaid themed slots. This is largely due to the bonus features which include Free Spins and Expanding Wilds, which add extra entertainment to this slot. You will be thrilled to hear that these bonus features have stuck around to keep this slot strong.

Since the introduction of Siren’s Kingdom, the mermaid and myth theme of slot has grown. With all developers getting involved in this theme, there are now many siren related slots available to choose from here at For example, Iron Dog Studios even introduced an advancement on Siren’s Kingdom, with Siren’s Kingdom Scratchcard - this uses a modern style of scratchcard slot which is all-the-rage at this online slots casino in 2021. If you loved the original version yet want to try something different, this all-new slot concept is sure to keep you entertained with something new and exciting.