Game Information
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Provider
IGT
Type
Slots
Theme
Book of
Reels
5
Min Bet
0.01
Max Bet
5
Max Win per Spin
25000000
Book of the Sphinx Slot: Comprehensive Data Analysis
Core Game Specifications
| Attribute | Value |
|---|---|
| Developer | IGT |
| Release Date | May 29, 2019 |
| Theme | Ancient Egypt |
| Layout | 5 reels, 3 rows |
| Paylines | 20 |
| Bet Range | $0.20–$100 |
| Core Mechanics | Eye of Ra expanding symbol feature, Book acts as wild and scatter, Free spins with expanding special symbol, Gamble feature |
| Technology | HTML5 |
| Platform | Mobile and desktop compatible |
Mathematical & Payout Model
Return to Player (RTP)
94.22%
Volatility
High
Max Win Potential
2500x
Symbols & Paytable Hierarchy
| Tier | Symbol(s) | Function & Value |
|---|---|---|
| Low Tier | 10, J, Q, K, A | Provides small, frequent wins to maintain gameplay. |
| Mid Tier | Tablet, Snake, Ankh, Anubis, Scarab | Thematic items offering moderate payouts. |
| High Tier | Pharaoh | Highest paying symbols. Top hits available with full combinations. |
| Wild | Book of the Sphinx | Acts as a substitute / feature trigger per game rules. |
| Scatter | Book of the Sphinx | Triggers free spins / bonus round when enough appear. |
Book of the Sphinx Bonus Features Mechanics
| Feature | Trigger | Initial Award | Core Mechanic | Enhancement/Retrigger |
|---|---|---|---|---|
| Eye of Ra expanding symbol | Three or more Eye of Ra symbols in base game | Random symbol expands to fill reels | ||
| Free spins with expanding symbol | Three or more Book symbols | 10, 15, or 30 free spins | One special symbol expands on each free spin | Retrigger possible up to 250 free spins |
| Gamble feature | After any win | Guess card color to double win |
Frequently Asked Questions (FAQ)
| What is the RTP of this slot? | The return to player is 94.22%. |
| How many paylines does it have? | It has 20 fixed paylines. |
| What triggers free spins? | Landing three, four, or five Book symbols triggers 10, 15, or 30 free spins. |
| What does the Eye of Ra feature do? | It expands a random symbol to fill reels when three or more Eye of Ra symbols land. |
| What is the maximum win? | The maximum win is 2500 times the stake. |
| Can I gamble my winnings? | Yes. After a win you can gamble by guessing a card color to double your win. |
| Does the Book act as wild? | Yes. The Book symbol substitutes for other symbols and also acts as scatter. |
Book of the Sphinx Performance Summary: Strengths vs. Weaknesses
Strengths
- High max win potential
- Engaging expanding symbol features
- Free spins with retrigger potential
- Gamble option adds excitement
Weaknesses
- Below average RTP
- High volatility may deter casual players
Overview
Ancient Egypt themed video slot by IGT. It features expanding Eye of Ra symbols, Book wild/scatter, free spins with expanding special symbol, gamble option, and high volatility.
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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