Game Information
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Provider
Light & Wonder
Type
Slots
Theme
Book of
Release Date
July 13, 2022
Reels
5
RTP
95.97
Volatility
3
Max Exposure
6519
Min Bet
0.1
Max Bet
30
Book of Fusion Slot: Comprehensive Data Analysis
Core Game Specifications
| Attribute | Value |
|---|---|
| Developer | SG Digital (Light & Wonder) |
| Release Date | 2022-07-13 |
| Theme | Science, Mad scientist lab, Magic book |
| Layout | 5×3 |
| Paylines | 10 |
| Bet Range | €0.10–€35 |
| Core Mechanics | Wild/Scatter Book symbol, Free Spins with dual expanding symbols, Retriggers adding more expanders, Bonus Buy (where available) |
| Developer | SG Digital (Light & Wonder) |
| Platforms | Desktop, mobile, tablet |
Mathematical & Payout Model
Return to Player (RTP)
95.97%
Volatility
Medium - High
Hit Frequency
33.1%
Max Win Potential
6519x
Symbols & Paytable Hierarchy
| Tier | Symbol(s) | Function & Value |
|---|---|---|
| Low Tier | 10, J, Q, K, A | Provides small, frequent wins to maintain gameplay. |
| Mid Tier | Magnet, Voltmeter, Switch, Tesla Coil | Thematic items offering moderate payouts. |
| High Tier | Scientist | Highest paying symbols. Top hits available with full combinations. |
| Wild | Book of Fusion | Acts as a substitute / feature trigger per game rules. |
| Scatter | Book of Fusion | Triggers free spins / bonus round when enough appear. |
Book of Fusion Bonus Features Mechanics
| Feature | Trigger | Initial Award | Core Mechanic | Enhancement/Retrigger |
|---|---|---|---|---|
| Free Spins with expanding symbols | 3+ Book symbols in base game | 10 free spins | Two random symbols expand to cover reels when they win | Retriggers (up to 4) add 10 spins and two more expanders each, up to 10 total |
| Bonus Buy | Player chooses to buy feature | Entry to Free Spins for cost of 70× bet | Skip base game to start Free Spins immediately |
Frequently Asked Questions (FAQ)
| What is the RTP of Book of Fusion? | The RTP is 95.97%, though versions with 89.99% and 93.98% also exist depending on jurisdiction. |
| What is the maximum win? | You can win up to 6519× your bet. |
| How do free spins work? | Landing 3 or more Book symbols triggers 10 free spins with two expanding special symbols; retriggers add more spins and expanders. |
| What does the Book symbol do? | It acts as both Wild (substitutes symbols) and Scatter (triggers free spins and pays on its own). |
| Can I buy the bonus? | Yes, in some jurisdictions you can use the Bonus Buy to enter free spins for 70× your bet. |
| What is the volatility? | The volatility is medium‑high. |
| How often do wins occur? | The hit frequency is approximately 33.1%, or about one win every three spins. |
| What theme does the game use? | It’s set in a mad scientist’s lab with a magical book and scientific gadgets. |
Book of Fusion Performance Summary: Strengths vs. Weaknesses
Strengths
- Dual expanding symbols in free spins
- High max win potential
- Bonus Buy option
Weaknesses
- RTP slightly below average
- High volatility may lead to long dry spells
Overview
Book of Fusion is a science‑themed 5×3 video slot by SG Digital (Light & Wonder) featuring 10 fixed paylines. The Book symbol acts as both Wild and Scatter, triggering a Free Spins bonus where two expanding special symbols can cover entire reels. Retriggers add more expanding symbols up to a maximum of 10, with a Bonus Buy option available in some jurisdictions.
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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