Game Information
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Provider
Spinomenal
Type
Slots
Theme
Book of
Reels
5
Min Bet
0.01
Max Bet
10
Max Win per Spin
500000
Restrictions
GB
Book of Sirens Slot: Comprehensive Data Analysis
Core Game Specifications
| Attribute | Value |
|---|---|
| Developer | Spinomenal |
| Release Date | April 2022 |
| Theme | Underwater fantasy, Greek mythology |
| Layout | 5×3 |
| Paylines | 10 |
| Bet Range | 0.10–100 |
| Core Mechanics | Wild/Scatter book symbol, Free spins with expanding symbol, Bonus buy feature, Autoplay |
| Technology | HTML5 |
| Mobile compatibility | Yes |
Mathematical & Payout Model
Return to Player (RTP)
96.14%
Volatility
Medium To High
Max Win Potential
5000x
Symbols & Paytable Hierarchy
| Tier | Symbol(s) | Function & Value |
|---|---|---|
| Low Tier | 10, J, Q, K, A | Provides small, frequent wins to maintain gameplay. |
| Mid Tier | Purple dragon, Green dragon | Thematic items offering moderate payouts. |
| High Tier | Red‑haired siren, Blonde siren | Highest paying symbols. Top hits available with full combinations. |
| Wild | Book of Sirens (wild/scatter) | Acts as a substitute / feature trigger per game rules. |
| Scatter | Book of Sirens (wild/scatter) | Triggers free spins / bonus round when enough appear. |
Book of Sirens Bonus Features Mechanics
| Feature | Trigger | Initial Award | Core Mechanic | Enhancement/Retrigger |
|---|---|---|---|---|
| Free Spins with Expanding Symbol | Three or more book symbols | 10 free spins | Random symbol expands to cover reels when forming wins | Retriggers available |
| Bonus Buy | Player action | Allows purchase of free spins feature |
Frequently Asked Questions (FAQ)
| How many paylines does the game have? | The game has ten fixed paylines. |
| What is the RTP of the slot? | The RTP is 96.14%. |
| What is the maximum win potential? | The maximum win is 5000x your stake. |
| What triggers the free spins feature? | Landing three or more book symbols triggers ten free spins. |
| Can the free spins be retriggered? | Yes, landing three or more book symbols during free spins retriggers the feature. |
| What does the book symbol do? | The book symbol acts as both wild and scatter. |
| Is there a bonus buy option? | Yes, players can purchase the free spins feature. |
Book of Sirens Performance Summary: Strengths vs. Weaknesses
Strengths
- High max win potential
- Engaging expanding symbol free spins
- Bonus buy option
Weaknesses
- Variable RTP depending on operator
- Volatility may be high for some players
Overview
Book of Sirens is a 5‑reel, 10‑payline video slot by Spinomenal released in April 2022. It features a mythical underwater theme with sirens, dragons, and a magical book that acts as both wild and scatter. The game offers free spins with expanding symbols and a bonus buy option.
Rachel Pine is our slots expert who has worked in the online gambling industry for 10+ years. Over the course of her career, Rachel has reviewed more than 30,000 slots.
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