How It Plays – Scatter / Wild / Expanding Symbols
Book of Flames runs on a standard 5-reel, 3-row grid with 10 fixed paylines. The game combines scatter triggers, wild symbols, and expanding symbols that climb vertically when they land. This is where the slot builds tension – when an expanding symbol hits, it can fill an entire reel, stacking wins across multiple lines in one spin.
Scatter symbols unlock the free spins round. Land them and the bonus activates – no need to match left-to-right on a payline. Once free spins begin, expanding symbols return with added weight. The hold mechanic lets players lock certain reels mid-spin, a sharp tool when the wait for a big expansion feels close.
| Spec | Value |
|---|---|
| Provider | Novomatic |
| Min bet | 0.5 |
| Max bet | 700 |
| Reels | 5 |
| Paylines | 10 |
| Bonus buy | yes |
Free Spins / Expanding Mechanics
When scatters trigger free spins, expanding symbols take center stage. Each free spin can generate multiple expansions – a single symbol type stretches the full reel height, then locks. This creates cascading potential across the bonus round. The game does not disclose exact spin counts or multiplier stacks in the public spec, but the mechanic rewards patience and symbol clustering.
Additional free spins can retrigger during the bonus. The expanding mechanic does not reset between retriggered rounds – momentum builds. This is where Book of Flames separates itself from flat base-game grinding.
Bonus Buy Feature
Novomatic offers a bonus buy option for players who want to skip the scatter hunt. The cost varies by operator and jurisdiction – some casinos list it as a fixed multiplier of the current bet, others tier it by desired free spin count. Since exact costs are casino-specific and not published in the game spec, check your operator’s menu before spinning.
Buy feature availability depends on your region. Players in restricted territories (AU, BE, BR, CH, CZ, DE, EE, ES, FR, GB, IL, MT, NL, SE, SI, UA, US) may have limited or no access to the buy option.
Betting Range / Game Size
Minimum bet is 0.5 per spin. Maximum bet climbs to 700 – a wide range that suits both micro-stakers and high-volume players. The game file is 18.8 MB and runs on HTML5 / JavaScript, meaning it loads fast on desktop and mobile without lag.
Book of Flames was last updated 23 February 2026, ensuring compatibility with current casino platforms and player devices.
Theme / Visual Design
The slot draws from ancient Egypt and pharaonic treasure – gold, scarabs, medallions, and hieroglyphic card suits fill the reels.
