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Siren Song

Review, Demo Play, Payout, Free Spins & Bonuses

Siren Song is an online slot developed by True Lab Games. This underwater-themed slot has 25 betways and a x30,000 top win. Additional features include free spins with ...three modes, win multipliers, and a pick-and-click bonus. Siren Song is a high-variance slot with a 96.33% RTP.

Siren Song is an online slot developed by True Lab Games. This underwater-themed slot has 25 betways and a x30,000 top win. Additional features include free spins with three modes, win multipliers, and a pick-and-click bonus. Siren Song is a high-variance slot with a 96.33% RTP.
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Pros
  • x30,000 max win
  • Free spins bonus with three modes
  • Pick and click bonus game
  • Steering wheel of fortune feature
Cons
  • High variance
  • Average 96.33% RTP

Introduction

If you can’t resist the tempting call of the Sirens - and let’s face it, even the most hardened sailors found that to be an impossible task - you could unlock some sizeable treasures including a x30,000 maximum win. You’ll have to keep your wits about you, though, so let’s learn more about this underwater world.

Theme, Graphics & Soundtrack

The blue-green background is both tempting and slightly disconcerting, which works well to reflect the theme and ambience True Lab slots often try to achieve. The stunning sirens and menagerie of intriguing sea creatures are instantly captivating, with the sound effects only seeking to heighten the sense of immersion. Plus, the smooth animations give the feeling that everything is floating gracefully beneath the crashing waves above.

Siren Song

Siren Song RTP and Variance

Siren Song from True Lab Games is a high-variance slot with a theoretical RTP (return to player) of 96.33%. This is a very average return percentage, and when weighed up alongside the game’s high variance, Siren Song may not be suited to the newest slot players.

How to Play Siren Song

  1. Begin by clicking on the ‘+’ icon in the bottom left corner of the screen. This menu will reveal the paytable, bonus features, win lines, and more.
  2. From the main screen, use the ‘-’ and ‘+’ buttons on either side of the ‘bet level’ box to adjust your stake. Alternatively, hit the ‘max bet’ button to go all in.
  3. When the ‘cash bet’ box displays a stake you’re comfortable with, you can start spinning.
  4. Siren Song has several spin modes: standard, auto and turbo. Simply select the spin mode that best suits your playing style.
  5. Keep an eye on your overall balance throughout and use the timeout features offered by Slots Temple.
  6. When the fun stops, stop playing.

Bet Sizes & Paytable Wins

When playing Siren Song, players can place a 0.20 minimum stake and a 50.00 maximum stake, which isn’t the largest of bet variations but should still suit many players.

The skull, pirate and harp are the game’s highest-paying symbols, with 5 of a kind triggering a x60 win. The pink conch shell symbol is the second highest-value symbol, with a combination of 5 matching symbols unlocking a x28.8 win.

Max-win 30,000x
Volatility High
Top RTP 96.33%

Siren Song Bonus Features

Wild Sirens

There are three wild siren symbols in play, all of which can replace all other symbols on the paytable aside from the scatter and may help lucky players to make additional winning combinations. Additionally, wild sirens will always nudge to fill a full reel.

Free Spins Bonus Round

When three scatter symbols land on reels 1, 3 and 5, players will unlock 8 free spins. There are three different free spins modes to choose from.

Emerald Free spins

During the Emerald free spins round, all skull wilds will be transformed into sticky wilds and will remain in place until the end of the round.

Silver Free Spins

During every free spin in this mode, the silver siren will call up to 20 bonus fish symbols to the reels. If several fish land in the same spot on a reel, that position will award a win multiplier.

Crimson Free Spins

In this free spin mode, key symbols will appear on the reels. At the end of the round, players will unlock a pick-and-click bonus game. During this bonus game, players will be presented with a screen filled with 10 chests. The number of keys collected determines how many chests can be opened, but there is one chest that will award up to 3 additional keys.

One of the 10 chests is the multiplier chest, which will increase the value of any additional win multiplier chests that are opened by x2. There are win multipliers worth up to x500 on offer here.

Steering Wheel of Fortune

At the end of every free spins round, players will be invited to spin the steering wheel of fortune. This feature delivers instant win prizes, including additional free spins and win multipliers. This can award up to x100 win multipliers.

Our Verdict: Siren Song Review

With up to x30,000 prizes on offer during Siren Song’s bonus rounds, this offering from True Lab Games has certainly been designed to capture attention at first glance. It’s important to understand, however, that maximum wins during regular spins are capped at x1,500, which is still a decent prize but significantly lower than the huge numbers you’ll see splashed around.

If you want to explore a selection of other slots with a free spins bonus round, the Slots Temple search functionality allows players to search by theme, developer, and feature. If you’re looking for specific recommendations based on your enjoyment of Siren Song, we think you may enjoy the Pixies of the Forest slot from High 5 and IGT. Pixies of the Forest is a low-variance slot with 99 paylines and a 93.95% RTP. It has a x2,000 max win and several additional features, including free spins.

Slot Data
Slot Name: Siren Song
Software: Truelabs
RTP: 96.33%
Volatility: High volatility
Paylines: 25
Reels: 5
Min Bet (all lines covered): £0.25 (GBP)
Max Bet: £50 (GBP)
Top Win: 30000
Features: Bonus Game, Wild Symbol, Multiplier, Free Spins, High volatility, 5 Reels, Symbol Collection
Themes:
Last Update: 29/06/2026
UK Available in UK? No. :maker does not have a UKGC license and cannot offer their games at UK licensed casinos.

FAQs

What is the RTP of Siren Song?

Siren Song from True Lab Games has an expected RTP of 96.33%. This is about average for many contemporary video slots.

How volatile is Siren Song?

As a high-variance slot game, new players may wish to proceed with caution when getting accustomed to its mechanics.

Does Siren Song have a bonus free spins round?

Land at least 3 orb scatter symbols to unlock 8 free spins.

What is the biggest win available when playing Siren Song?

The luckiest players could unlock a x30,000 max win. This is a sizeable maximum win and is larger than many other video slot games around at the moment.

Does Siren Song have any other notable additional features?

Wild symbols will nudge to fill a full reel, and at the end of every free spins round, players will be invited to spin the steering wheel of fortune.

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