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Siren's Spell Slot Review

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I recently came across a video on the internet of a guy fishing offshore, alleging to hear Mermaids singing.

Pros & Cons
Bonus buy feature
Only 25 fixed paylines
Ante bet feature
Max payout of 3,000x the bet
Up to 97.67% RTP
Symbol upgrades
Nudging wilds feature

The Siren’s Spell Slot Game

Developed by Habanero, this new online slot takes players to a mysterious world underwater. Before we proceed, load Siren’s Spell demo play from and use it alongside this review!

It’s free and accessible at any time, as long as you’re above the gambling age.

From the onset, you can tell that the team of designers took their time with the visual quality. Several fortresses portray Greek mythology roots, with fish and other sea creatures swimming across the screen. There’s plenty to describe, but the bottom line is that the graphics are worth admiring!

An immersive melody and sound effects enhance Siren’s Spell slot atmosphere. Despite the humongous reel set, there’s little space at the bottom of the screen to accommodate the control bar.

Symbols and Payouts

The Siren’s Spell online slot game consists of 10 symbols — 8 regulars and 2 feature icons. All the icons are designed according to the game’s theme, thereby extending the aura onto the reels.

Like most expert gamblers, perusing through the paytable will give you a better glimpse of all the symbols and their potential win combination payouts.

You can also consult from the paytable when trying out Siren’s Spell free demo. All line wins are multiplied by the stake per line value.

The minor paying symbols are Nautilus, Snail, Seashell, and Clam and they give out up to 15, 20, 30, and 40 times the line per bet, respectively. Then, the high-win creatures are the Sea Turtle, Shark, Seahorse, and Jellyfish. If you manage up to 5 of the same, you’ll receive 75, 150, 300, and 1500 times the stake/line, respectively.    

The Siren acts as the game’s wild and it pays 1500 times when 5 of its kind appear along a payline. Also, it can replace all regular symbols in a winning combination. The Pearl scatter only appears on odd-numbered reels of the base game and pays 3x the total stake.

Although the regular payouts are decent, watch out for the feature symbols since they can trigger extra bonuses. Find out how in the next Siren’s Spell slot review segment.

Siren’s Spell Slot Bonus Features

The most excitement in this slot game takes place when you activate the free spins. Here, you can also enjoy the Upgrade feature!

Nudging Wild

Any Siren symbol that lands partially on a column will nudge down or up and cover the column entirely. That way, you receive better chances of landing paying sequences.

Siren’s Spell Free Spins

When 3 scatters appear on the 1st, 3rd, and 5th columns, the game will award 15 free plays. The games are non-re-triggerable and use the stake and lines of the triggering game.

Upgrade Feature

This feature is only active during the Siren’s Spell bonus spins and can upgrade the Sea Turtle to Shark, and then to the Seahorse. Every payline win reduces the counter for the active upgrade possibility. The active upgradeability completes when an upgrade ability’s counter reaches zero.

Buy Feature

This feature’s button displays a cost of 50.08x the stake, whereby you can pay the amount and instantly trigger the free spins. When you tap ‘Yes’ from the popup, you agree to proceed with the purchase.

Super Bet

This Ante Bet option from the base game doubles your bet. When activated, it increases the odds of activating the Siren’s Spell free play rounds. The wilds also appear more frequently during the free spins.

How to Win at Siren’s Spell Slot

First of all, the Siren’s Spell online slot makes use of a traditional reel set with 5 reels, each having 3 rows. The reel set uses 25 permanent paylines, that play at a fixed cost of 25 coins.

To win, you should try to manage three, four, or five OAK symbols in successive positions of valid paylines from the leftmost towards the right-hand side. You receive payouts only for the longest wins per line.

The stakes range from as little as €0.25 up to a staggering €5000 per spin. The bets change when you configure the bet level (1 to 10) and €0.01 to €20 coins.

Press Play for a single spin of the reels or use Autoplay for continuous spins based on preselected settings. You can cancel an ongoing Siren’s Spell slot game using the Stop button.

The last buttons include the “i” and Settings which reveal the paytable and other game options, respectively.

Siren’s Spell Slot RTP & Volatility

The available Siren’s Spell RTP values range from 92.06% to 97.67%. Meanwhile, the volatility is very high and the game can only award up to 3,351x the total stake!

The Final Thoughts

Before I pass my judgement about the game, I hope this Siren’s Spell slot review has boosted your know-how of the gameplay!

If you love immersive games, that should be a reason enough for you to try this Siren’s Spell. Still, the gameplay’s features will take your excitement to another level. From nudging wilds to free spins with upgrading symbols, you won’t miss something worth looking forward to when gambling.

Despite the engaging features, the game has a registered max win of slightly over 3000x the bet, which isn’t industry competitive.

Also, Habanero, don’t you think an extremely volatile slot with high bets only is a little bit unfair to the low-rollers?

Slot type
Video Slots
Slot bonus features
Nudging Symbols
Free Spins
Symbol Upgrades
Bonus Buy
Super Bet
Slot details
Animals · Fantasy & Fairytales
Very High
Release date:
Siren's Spell screenshot
Siren's Spell screenshot
Siren's Spell screenshot
Siren's Spell screenshot
Nerijus Grenda
Nerijus Grenda
Last Update: 09 Aug 2023
Nerijus Grenda is a prolific contributor to the GoodLuckMate site. With a deep understanding of the online casino industry, gained from his own experience as an avid player, he offers valuable insights on what sets the best casinos apart from the rest. As a writer, Nerijus shares his expertise through expert analysis and thoughtful commentary on various topics related to online gambling, including casino reviews, game guides and industry trends.
Emma Sjökvist This article has been Quality Assured by Emma Sjökvist

Can I play Siren's Spell for free?

A: Yes, many online casinos offer the Siren's Spell slot in demo mode, allowing players to try it out for free before wagering real money.

Can I win real money playing the Siren's Spell slot?

A: Yes, it is possible to win real money from the Siren's Spell slot. As long as you're playing for real money that is, of course. It's important to note that the amount of money that can be won from the Siren's Spell slot, or any other slot game, is based on chance and there is no guarantee of winning.

Can I play Siren's Spell with bonus money?

A: Yes, in most cases. Whether or not you can play Siren's Spell with bonus money depends on the specific terms and conditions of the online casino offering the bonus. Some online casinos may restrict certain games, including Siren's Spell, from being played with bonus money, while others may allow it.

Is the Siren's Spell slot available on mobile devices?

A: Yes, the Siren's Spell slot is available on both desktop and mobile devices.

What is the volatility of the Siren's Spell slot?

A: The Siren's Spell slot has high volatility, which means that payouts are less frequent but can be larger.


How many paylines does the Siren's Spell slot have?

A: The Siren's Spell slot has 25 paylines.

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