Sirens Treasures 15 Lines Series Slot - Review, Free & Demo Play logo

Sirens Treasures 15 Lines Series Slot - Review, Free & Demo Play


Sirens Treasures 15 Lines Series is a slot created by Spinomenal and released on 20/06/2019. If you love sea travel and are not afraid of the seductive Sirens that you can meet on the way, then get ready for a risky trip! We'll help you deal with the excitement and suspense by providing a detailed account of this game on this page. In addition, here you can also find a free version of the slot, which will help you travel across the sea.

Software: Spinomenal
Release Date: 20.06.2019
Volatility: Medium
RTP: 96.7%
Multiplier: Yes
Max. win: 1,000x
Bonus game: Yes
Free spins: Yes
Scatter Symbol: Yes
Wild symbol: Yes
Symbol Stacked: Yes
Jackpot Game: No
Slot lines: 15
Slot reels: 5
Layout: 5-3
Stakes range (€/£/$): 0.15 to 150
Slot Theme: Fantasy
Technology: JS, HTML5

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Sirens Treasures 15 Lines Series Free Play

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How to Play

To start playing Sirens Treasures 15 Lines Series, do the following:

  1. Click on the title
  2. Watch the intro video
  3. Click on "Help"
  4. Read the rules of the game
  5. Bet from €0.15 to €150
  6. Spin the reels

The slot has 15 payment directions, as well as 9 regular symbols. In addition to the usual elements, there are special ones, such as Bonus, Wild and Free Spins. They are responsible for the bonus features of the title, which can be activated during the spins of the reels in the base round.

In addition, the game has a mysterious symbol that can turn into almost any other after falling onto the grid. The exception is the bonus element and the Scatter, which activates the free spins. An additional feature of the main round is a 2x to 5x bet multiplier that also appears randomly.

Sirens Treasures 15 Lines Series RTP and Volatility

The RTP of the title is 96.66% and the volatility is medium.

The return percentage is an indicator of the amount that you can get when you finish spinning the reels of the slot. Please note that RTP refers to statistics. It cannot be used when planning a game session, since the result of any spin depends on the unpredictable behavior of the random number generator.

Medium volatility is an indicator that promises a balanced game. You will receive fairly large prizes, and profitable combinations will appear on the grid not as rare as in slots with high volatility.



Sirens Treasures 15 Lines Series

Spinomenal slots always feature great graphics and this one is no exception. The translucent playing field is located against the backdrop of a rocky shore, wrapped in a disturbing fog. Look, the Siren will appear on the horizon and call unlucky sailors to her! The fog in the slot is alive, it constantly floats in the field of view, which creates good optical illusions.

The soundtrack of the title would be great for any war game, but not this one. Despite the fact that the siren's voice is clearly heard in the melody, it does not inspire. Much more interesting than the music are the sounds of the game events, which are well chosen.

The symbols of the title are 5 card denominations, as well as the Cup, Shield, Lute, and Warship. The mystery symbol is represented by a red-haired siren, and the multiplier is a pearl in a pink shell.

The Wild in the game is a mermaid with a gorgeous green tail, and the Bonus symbol looks like a chest lost in the ocean. Free spins are activated using the image of a sailor.

Sirens Treasures 15 Lines Series slot paytable

Mobile Compatibility

Sirens Treasures 15 Lines Series slot mobile
The slot has a mobile version that can be launched by tapping on the slot in your phone's browser. To download it, you will need a minimum-speed internet connection. The game automatically adjusts to the screen resolution of your device, so it's really convenient to play using the mobile version.

About Spinomenal

Spinomenal is a quality online slot provider that is considered one of the most promising in the iGaming industry. The company has created some great titles including Lucky Miners, Toys of Joy, and Western Tales. Today, the company continues to conclude deals with partner operators, expanding its activities into regulated markets.

Bonus Rounds & Free Spins


Free Spins

Three sailor icons on the grid trigger a 10 free games round. If you are lucky enough to get any winnings during the round, they will be paid out with a 3x bet multiplier.
Sirens Treasures 15 Lines Series slot Free Spins

Bonus Game

If you see 3 Bonuses on the screen, an extra round will start. In it, you must choose chests with rewards from several presented on the screen. You will get as many attempts as you have collected bonus symbols.

Stacked and Sticky Wild

If the Wild takes up 3 full reels on the screen, it will stick to it. Then one re-spin will be activated. During free spins, the Wild can also randomly appear on the grid and stay there until the end of the round.

Bonus Buy

If you want to get 10 free games, just pay 32x the bet – this is a reasonable price for a potential win.

Sirens Treasures 15 Lines Series Demo Play

If you don't want to play for money, try spinning the reels in the demo version of the slot. It's no different from the standard one. You can easily explore all the features of the title, as well as try to trigger bonuses.

Max Win

Maximum win — 1,000x the bet.
The developer did not provide exact information about the maximum win in the bonus rounds, however, you can get up to 1,000x the bet in the base game. Such a payout is due to players who have collected 5 Wilds or the same number of warships on the screen. However, during bonuses, it is possible that you can earn more. To try to run them, use medium rates, replacing them with small ones from time to time.
Overall Rating
Sirens Treasures 15 Lines Series is an exciting slot that comes with a range of attractive and lucrative bonus features. Beginners, as well as experienced users, will find it quite interesting. However, the game has medium volatility, which makes it unnecessarily risky for casual players.
Free spins
Random multipliers
Wild features
Only 15 paylines

Sirens Treasures 15 Lines Series Slot - FAQ

What is the most valuable symbol in Sirens Treasures 15 Lines Series?
It’s the Warship symbol.
How many paylines are there in Sirens Treasures 15 Lines Series?
There are 15 paylines.
What is the Return to Player (RTP) rate of Sirens Treasures 15 Lines Series?
The RTP of the game is 96.66%.

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Joe Booth

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Joe is an expert online casino player, who knows all the tricks and tips on how to get to the most massive wins. He is also an experienced online casino games reviewer, with hundreds of written articles behind him, on all kinds of online casino games. He makes sure to play them, see how they work, and then gives his honest expert opinion about them to other players, our readers. 

Reviewed by Editor-in-Chief:
Aleksandra Andrishak
Updated: 18.11.2022

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