Book of Doom
- RTP
- 96.31%
- Volatility
- HIGH
- Max win
- 5,000×
- Hit freq
- -
- Grid
- -
- Bet
- -
- Released
- 2020-01-01
A playable demo is not available in your region.
Our take
5-reel Egyptian-themed slot from Belatra with 96.31% RTP, high volatility, and 5,000× max win.
Belatra's Book of Doom sets players on a quest through Egyptian tombs in search of a predictive book—a narrative hook shared across the sprawling Book of series. The 5×3 grid and 10 paylines create a traditional framework that feels instantly accessible.
The standout feature is the expanding symbol mechanic during free spins, where a randomly selected symbol stretches to cover entire reels, multiplying winning combinations. This mechanic is well-executed, creating distinct phases within the bonus round rather than static multipliers.
At 96.31% RTP, Book of Doom sits above average, offsetting the high volatility somewhat. The 5,000× max win comes via rare symbol combinations, making the occasional big hit plausible but not probable. Visually, the game delivers captivatingly detailed graphics and rich colours, though the theming is now thoroughly familiar in the book-slot landscape.
Pros
- 96.31% RTP sits above industry average, offsetting volatility
- Expanding symbol mechanic during free spins creates dynamic winning chains
- High-quality visuals with detailed Egyptian artwork
- Straightforward 5×3 layout appeals to players seeking simplicity
Cons
- High volatility can lead to prolonged sessions without substantial wins
- Egyptian pharaoh theme offers nothing novel—heavily used across book slots
Math & maxes
Math breakdown
- Volatility score
- 3 / 5
- Max win
- 5,000x the stake
FAQ
How do you trigger the free spins round?
Free spins unlock via standard scatter symbols. A random symbol expands during the bonus, multiplying paylines.
What's the RTP?
Book of Doom has a 96.31% RTP, which is above the modern average for online slots.
Is the game volatile?
Yes, high volatility means wins arrive less frequently, but when they do, they're often larger due to expanded symbols.
What's the max win?
The maximum win is 5,000 times your stake, typically achieved through rare symbol combinations and expanding reels.
Does Book of Doom work on mobile?
Yes, the game is fully mobile-optimised and plays smoothly on all devices.
