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Siren Symphony Slot is currently available only in free play mode in your country.
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Siren Symphony Slot TrueLab Games

Siren Symphony slot features 5 reels and 25 paylines and is the new addition to True Lab portfolio. This mysterious slot is taking you deep into the abyss of the ocean where you will get to revisit the Greek mythology once again. Dive deep underwater where you will be welcomed by the three sirens here for fun or at any True Lab Casino where you can do it real.

How to Play Siren Symphony Slot

Set your bets and see for yourself why the sirens are one of the most feared creatures in the ancient stories.

  • Bet Level +/- will let you either decrease or increase your bets.
  • Spin will get the reels moving once the bets have been set.
  • Max Bet will set the maximum allowed bet with one click.
  • Auto will open a panel and let you choose from a set of automated spins.
  • Buy Bonus will let you buy your way into the bonus round.

Slot Features

There are 3 Sirens, and all of them are the Wild symbol that can substitute for all the other symbols in the game, except for the Scatter, to help you form win combos. In addition to that, the Wild Sirens will always nudge to cover a whole reel.

Free Spins

Pearl is the Scatter, and you will need 3 of those to land, on the same spin, on reels 1, 3 and 5, to trigger the Free Spins round. Or, instead of waiting for the regular trigger, you can hit Buy Bonus and get into the round without any waiting. Once triggered, you will get to choose one of the three Free Spins modes: Crimson, Silver and Emerald, each granting 10 spins, but each on different volatility level, with some twists on each.

In Emerald Spins, the Skull Wilds will become Stick Wilds that will remain on the reels until the feature ends, and first Skull Wild on each reel will provide you with an extra spin. In Silver Spins, after every win combo, the Siren will call up to 15 Bonus Fish symbols that will take a random position on the grid, and multiple Fish landing on the same spot will award multiplicative multipliers that equals to the number of Fish on that position. In Crimson Free Spins the Key symbols will get added to the grid, and at the end of the round you will get to play Pick & Click Bonus round, and the number of picks will equal to the number of Keys collected.

Crimson Pick & Click

When the Crimson Spins end, you will be presented with a screen that’s loaded with 10 chests that are filled with random prizes.  One Chest will always hold the Key that can award between 2 and 4 additional keys. One Chest is always the Multiplier that can multiply upcoming bet chests by 2 and award an extra Key. The remaining 8 Chests are called Bet Chests that award a random number of bets multiplied by the current multiplier.

Helm of Fortune

Once the Free Spins end, regardless of which Siren Spins you played, you will be awarded with the Helm of Fortune bonus. A Helm will spin here and the section it stops on, will be awarded to you on top of the wins from the Free Spins round. Thus, you can get awarded with a Multiplier or Bet Prize that will be topped on what you already won.


Siren Symphony looks amazing, and True Lab really stayed truthful to their style here despite being relatively new in the industry, and their games are exceptional and thrilling. Luckily for us, Siren Symphony is no different – highly volatile slot with varying RTP that can be as low as 92.15% and as high as 96.13% really adds to the thrill, and x30000 max exposure just spices things up. Overall, perfectly designed and action-packed slot that captures the true essence of the sirens, which, in our opinion, is going to be worth your time.


Play game
Software TrueLab Games
Slot Type Video slots
RTP 96.13%
Special feature Wild Scatter Free Spins
top10 Slot details
top10 More slot details More details
  • Software
    TrueLab Games
  • Slot Type
  • Paylines
  • Reels
  • Min Coins Size
  • Max Coins Size
  • RTP
  • Bonus Game
  • Progressive
  • Wild Symbol
  • Scatter Symbol
  • Autoplay Option
  • Multiplier
  • Free Spins
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