Siren's Kingdom Slot Review – Demo, RTP & Features

By Chris Grand Updated March 4, 2025Iron Dog Studios
Siren's Kingdom
TRY THE GAME
Slots4Play App Play on the S4P App! Enjoy S4P games, earn XP and unlock achievements. DOWNLOAD APP
Midarion Casino Review

Midarion Casino

​ ​
3.8 /5

250% up to €3000 + 350 Free Spins

  • Well-designed site
  • Plenty of slots
  • Crypto-friendly
Top Pick

18+ New Players Only. Min. 35x(D+B) & 40x(FS) Wagering Requirement. Valid until Further Notice. Full T&C's Apply

Siren's Kingdom Slot Review

Dive into the mystical underwater world of Siren’s Kingdom, where mermaids, treasures and mythical creatures await.

Iron Dog Studio doesn’t disappoint, and as usual, this game has beautifully designed graphics with a mystical and enchanting soundtrack that suits the theme perfectly. It’s an immersive slot with easy-to-play bonus features.

Siren’s Kingdom is a 5×3 reel video slot with 30 paylines, where players can bet between 0.30 cents to €150.00 per spin. The game has medium-high volatility and offers the chance to win up to 4,000x the stake. The RTP is fairly solid at 96.18%, which is what we have come to expect from Iron Dog Studio.

In the Siren’s Kingdom slot, players have a chance to dive into the underwater realm and explore its riches with expanding wilds, substitution symbols, and a free spins feature that can award up to 36 free spins with sticky wilds. The bonus features may not be complicated, but they sure are rewarding.

Siren’s Kingdom, developed by Iron Dog Studio, offers players an underwater adventure with expanding wilds and a unique free spins feature.  We can’t fault Iron Dog on the maths model or the graphic design, and while the bonus features may not look like much they are regarding.

Overall, Siren’s Kingdom is a must-try game for fans of marine-themed slots and those looking for a new and exciting game to play.

OnlyWin casino review

OnlyWin Casino

​ ​
4.8 /5

375% up to €3,000 + 500 Free Spins

  • Over 5,000 Casino Games
  • Cryptocurrency Supported
  • VIP Club & Casino Tournaments
Visit site

18+ New Players Only. Min. 35x(D+B) Wagering Requirement. Valid until Further Notice. Full T&C's Apply

New
Golden Play Casino Review

GoldenPlay Casino

​ ​
4.7 /5

€555 Bonus + 100 Free Spins

  • 1800+ Video Slots
  • Sport & Casino Bonuses
  • Themed slot machines
Visit site

18+ New Players Only. Min. 35x(D+B) Wagering Requirement. Valid until Further Notice. Full T&C's Apply

New
Lucky Mate Casino

LuckyMate Casino

​ ​
4.8 /5

Deposit 10 GBP Get 50 Bonus Spins

  • UK Licensed Casino
  • Free Spins on Deposits
  • Drops & Wins
Visit site

18+ New disclaimer from March 11th: £10 min deposit | £10 in slot bets grant 50 spins on Big Bass Splash | £5 total spin value | £0.10 per spin | x1 wagering | £1 max contribution to wagering | £100 max cashout from winnings | 7-day expiry | selected payment methods only. Full T&C's Apply

New

Game Features

Siren’s Kingdom features a variety of marine-themed symbols, including card symbols, starfish, shells, and pearls. The higher-value symbols offer payouts of up to 400 coins for a five-of-a-kind combination, while the lower-value symbols offer payouts of up to 150 coins.

The game also features a wild symbol represented by a seductive siren, which can expand to cover an entire reel and substitute for other symbols to increase your chances of hitting winning combinations.

Siren’s Kingdom offers players the chance to trigger the Free Spins feature by landing 3, 4, or 5 scatter symbols, which are represented by a golden octopus holding a pearl. Once triggered, players can win 14, 25, or 36 free spins, respectively.

During the feature, Wild symbols appear and expand in different directions and also act as sticky wilds, remaining on the reels for one rotation. The feature can be retriggered by landing additional Scatter symbols.

👍 What We Like

  • ✓ Good bet range;
  • ✓ Expanding wilds;
  • ✓ Generous free spins feature.

👎 What We Don't Like

  • × No progressive jackpot;
  • × High volatility may be challenging for some players;
  • × Bonus features are slightly lacking.

Explore More

Siren's Kingdom FAQs

The free spins feature is triggered by landing 3, 4 or 5 scatter symbols (the golden octopus holding a pearl) on the reels.

Yes, there is a wild symbol in the form of a siren which can expand to cover an entire reel and substitute for other symbols.

Yes, it is possible to retrigger the Free Spins feature in Siren’s Kingdom by landing additional scatter symbols during the bonus round.

The wild symbols in Siren’s Kingdom are represented by the sirens. They can appear on any reel and expand to cover the entire reel, substituting for other symbols to create winning combinations. In the Free Spins feature, the wilds become sticky and fill 2 adjacent symbols before disappearing.

Comments

Subscribe
Notify of
guest

0 Comments
Oldest
Newest

Chris Grand Casino & Games Reviewer

As a content writer specializing in iGaming, my goal is to provide players with the latest casino bonuses, new slot game releases, and industry news. I strive to create honest, accurate, and insightful content that helps players discover trusted online casinos and make informed gaming decisions.

Last Update: March 4, 2025