Book of Holla: Bonus Spin Slot: Comprehensive Data Analysis
Core Game Specifications
| Attribute | Value |
|---|---|
| Developer | Hölle Games |
| Release Date | August 29, 2024 |
| Theme | Fantasy, Magic, Fairy tale |
| Layout | 5×3 |
| Paylines | 10 |
| Core Mechanics | Book Spins, Bonus Spins, Collector Charms, Expanding special symbol, Progressive collection bar, Gamble feature, Wild, Scatter, Free Spins |
| Technology | HTML5 |
| Mobile compatibility | Yes |
Mathematical & Payout Model
Return to Player (RTP)
95.63%
Volatility
Medium - High
Max Win Potential
100x
Symbols & Paytable Hierarchy
| Tier | Symbol(s) | Function & Value |
|---|---|---|
| Low Tier | 10, J, Q, K, A | Provides small, frequent wins to maintain gameplay. |
| Mid Tier | Potion, Scroll, Butterfly, Mushroom | Thematic items offering moderate payouts. |
| High Tier | Forest Fairy, Magic Book | Highest paying symbols. Top hits available with full combinations. |
| Wild | Magic Book | Acts as a substitute / feature trigger per game rules. |
| Scatter | Magic Book | Triggers free spins / bonus round when enough appear. |
Book of Holla: Bonus Spin Bonus Features Mechanics
| Feature | Trigger | Initial Award | Core Mechanic | Enhancement/Retrigger |
|---|---|---|---|---|
| Book Spins | Landing three or more Book (Scatter/Wild) symbols | Free spins with expanding special symbol | Collector Charms fill a bar unlocking 2×, 3×, 5× multipliers on special symbol wins | |
| Gamble feature | After any win | Choose card or ladder gamble to double or multiply win |
Frequently Asked Questions (FAQ)
| What is the RTP of Book of Holla: Bonus Spin? | The RTP is 95.63%. |
| What is the volatility level? | The game has medium‑high volatility. |
| How do I trigger the Book Spins feature? | You need to land three or more Book symbols (which act as Scatter) to trigger Book Spins. |
| What do Collector Charms do? | During Book Spins, every three Collector Charms fill a segment of the collection bar, unlocking 2×, 3×, and 5× multipliers on special symbol wins. |
| What is the maximum win multiplier? | The maximum win per line is 100× your bet. |
| Does the game offer a gamble feature? | Yes, after a win you can use a card or ladder gamble to try to increase your prize. |
| Can I play this slot on mobile? | Yes, it is built in HTML5 and fully mobile‑compatible. |
Book of Holla: Bonus Spin Performance Summary: Strengths vs. Weaknesses
Strengths
- Innovative Book Spins with progressive multipliers
- Engaging fairy‑tale theme with immersive graphics
- Medium‑high volatility suits experienced players
Weaknesses
- RTP is average rather than high
- Bet range details not widely published
- Hit frequency not specified
Overview
Book of Holla: Bonus Spin is a 5×3, 10‑payline video slot by Hölle Games, released August 29, 2024. It features Book Spins and Bonus Spins, with a progressive collection bar during Book Spins that unlocks 2×, 3×, and 5× multipliers on special symbol wins. The game offers medium‑high volatility and an RTP of 95.63%.
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.
Latest posts by Rachel Pine (see all)
- Top 6 Low Volatility Slots in the UK - September 30, 2025
- Best Online Casino Strategies That Actually Work - September 21, 2025
- Volatility in Online Casino Games - July 28, 2025