Book of Flames
High-volatility fire-themed book slot with expanding bonus symbols
The SlotRanker Score is calculated from the visible data below. It is not affected by affiliate deals, and it cannot be bought.
Why this score
Partial data (57%)Five weighted signals shape the composite. Four context signals refine ties. See how we rate for the full methodology.
Popularity blends real player search demand (~30 markets) with a catalogue-derived proxy; games without measurable search demand use the proxy alone. Not live play telemetry.
SlotRanker Score: 43 — Book of Flames by Novomatic
https://slotranker.com/novomatic/book-of-flames#scoreSlot Summary
How It Plays
Base play uses a 5x3 layout and 10 fixed paylines. Regular combinations pay from left to right, while the Book operates separately from ordinary line symbols.
The Book serves as both Scatter and Wild, giving one symbol two jobs. Outside the bonus, it can support line results or move the game toward free spins.
Theme & Atmosphere
Fire gives the Book theme a sharper presentation, turning the central object into more than a neutral bonus icon and tying it directly to the game's title.
Magic and Mystery shape the surrounding tone. The presentation treats the Book as a concealed source of power, with the bonus revealing its randomly chosen special symbol.
Features & Win Potential
The Expanding Symbols feature applies to one randomly selected symbol during free spins. When enough copies land, that symbol can cover full reel positions for the resulting win.
The Scatter Symbol and Wild Symbol functions meet in the Book. Its Scatter role opens the bonus, while its Wild role supports ordinary winning combinations.
Bonus & Free Spins
At least 3 Book symbols award 10 free spins. Before the round begins, the game randomly selects one regular symbol to become the expanding symbol.
The feature supports Additional Free Spins. Landing at least 3 more Book symbols during the round adds another 10 spins without replacing the selected expanding symbol.
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Compare Book of Flames with other games
 Book of Flames Score 43This game |  Monsterville Secrets Score 84 |  The Watcher Score 81 |  Book of Unseen Score 79 |  Fury of Hyde Megaways Score 79 | |
|---|---|---|---|---|---|
| Identity | |||||
| Studio | |||||
| Released | 8/21/2025 | 10/22/2024 | 10/28/2024 | 12/4/2024 | 2/8/2023 |
| Math | |||||
| RTP | — | 96.04% | 96.01% | 96.2% | 96% |
| Volatility | — | Medium/High | High volatility | High volatility | High volatility |
| Max win | — | 12,500× | 9,000× | 2,500× | 10,000× |
| Format | |||||
| Reels | 5 | 5 | 6 | 5 | 6 |
| Layout | 5x3 | 5x4 | 6x6 | 5x3 | 6x7 |
| Paylines | 10 | 243 | 40 | 10 | 117649 |
| Min bet | 0.1 | 0.2 | 0.2 | 0.1 | 0.2 |
| Max bet | 140 | 50 | 100 | 100 | 20 |
| Features | |||||
| Progressive | — | — | — | — | — |
| Wild symbol | ✓ | ✓ | ✓ | ✓ | ✓ |
| Free spins | ✓ | ✓ | ✓ | ✓ | ✓ |
| Scatter symbol | ✓ | ✓ | ✓ | ✓ | ✓ |
| Multiplier | — | ✓ | ✓ | ✓ | ✓ |
| Bonus game | — | — | — | ✓ | — |
| Respins | — | — | — | — | — |
Every number is shown as a delta against Book of Flames.
Questions & Answers
Book of Flames FAQ
Landing at least 3 Book symbols triggers 10 free spins and selects a special expanding symbol for the round.
Yes. Another group of at least 3 Book symbols during the feature adds 10 more free spins.
The available game listing classifies Book of Flames as high volatility, so its expanding-symbol bonus carries much of the payout pressure.
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