Game Information
Provider
Retro Gaming
Type
Slots
Theme
Book of
Restrictions
GB
Book of Ruby Slot: Comprehensive Data Analysis
Core Game Specifications
| Attribute | Value |
|---|---|
| Developer | Retro Gaming |
| Release Date | 19.09.2022 |
| Theme | Ancient temple, Gems, Book of Ruby |
| Layout | 5×4 |
| Paylines | 10 |
| Bet Range | 0.1–100 |
| Core Mechanics | Bonus Bet (Retro Bet) with 1×–5× multipliers, Book‑of… expanding symbol mechanic, Free Spins with expanding symbols, Wild/Scatter book symbol |
| Technology | HTML5, JavaScript |
| Platform | Desktop (not mobile) |
Mathematical & Payout Model
Max Win Potential
1000x
Symbols & Paytable Hierarchy
| Tier | Symbol(s) | Function & Value |
|---|---|---|
| Wild | Book (also acts as Scatter) | Acts as a substitute / feature trigger per game rules. |
| Scatter | Book (also acts as Wild) | Triggers free spins / bonus round when enough appear. |
Book of Ruby Bonus Features Mechanics
| Feature | Trigger | Initial Award | Core Mechanic | Enhancement/Retrigger |
|---|---|---|---|---|
| Retro Bet multipliers | Activate Bonus Bet | Applies 1×–5× multipliers to all wins when Retro Bet is active. | ||
| Free Spins with expanding symbol | Land 3–5 book scatter symbols | 10 free spins | One symbol expands to fill reels after wins. | Retro Bet multipliers apply if active during feature. |
Frequently Asked Questions (FAQ)
| What is the Retro Bet feature? | Retro Bet is an optional side bet that applies a 1×–5× multiplier to all wins when activated. |
| How do I trigger free spins? | Landing three, four, or five book symbols (wild/scatter) triggers 10 free spins with an expanding symbol. |
| What does the expanding symbol do? | A randomly chosen symbol expands to fill its reel after wins, increasing chances for bigger payouts. |
| What is the maximum win? | The maximum win is 1000× your stake. |
| Can I play on mobile? | No, Book of Ruby is available on desktop only. |
Book of Ruby Performance Summary: Strengths vs. Weaknesses
Strengths
- Engaging expanding symbol mechanic
- Retro Bet adds strategic multiplier option
- High maximum win potential (1000×)
Weaknesses
- RTP, volatility, and hit frequency not publicly disclosed
- Not available on mobile
Overview
Book of Ruby is a 5‑reel, 4‑row video slot by Retro Gaming featuring 10 paylines. It includes a Bonus Bet (Retro Bet) that applies 1×–5× multipliers, a Book‑of… mechanic with expanding symbols, free spins, wild/scatter book symbols, and is built in HTML5/JS.
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