Book of the Priestess Bonus Buy Slot Review
Book of the Priestess Bonus Buy is an Evoplay video slot with 5 reels, 10 paylines, 95.96% RTP and instant access to 10 Free Spins through Bonus Buy in a compact book-style layout.
This review covers the medium-high volatility model, expanding symbols, Ancient Mask meter and demo play so readers can judge the feature cost and session risk before playing.
Key Information
| provider | Evoplay |
| release date | 03.2023 |
| RTP | 95.96% |
| volatility | Medium-high |
| max win | 6088x |
| reels | 5 reels, 3 rows |
| paylines/ways | 10 paylines |
| min/max bet | €0.10 to €75 |
| theme | Aztec temple, priestess, sacred book |
| bonus buy | Yes |
Sheet max is 6088x, while the game page lists €456,600.
We use 6088x here for cleaner slot comparison.
How Book of the Priestess Bonus Buy Works
The slot uses a 5×3 grid with 10 fixed paylines, so wins form from left to right on the active lines. The Book symbol acts as both Wild and Scatter, replacing regular symbols in paid combinations and triggering the Free Spins round when 3 or more land in view.
Bonus Buy changes the route into the feature by letting the player purchase 10 Free Spins directly. Before the round starts, one regular symbol is selected as expanding, and it can cover full reels when enough positions support a win.
Core Features in the Aztec Temple
- Bonus Buy opens 10 Free Spins instantly instead of waiting for 3 Books.
- Scatter Books work as Wilds in base play and trigger the feature with 3 symbols.
- One regular pay symbol becomes expanding before every Free Spins round.
- Ancient Mask meter adds 5 extra spins and another expanding symbol after 7 Books.
- Up to 9 expanding symbols can be active when the meter retriggers often enough.
- Medium-high volatility keeps the profile swingy without extreme slot pacing.
Players Who May Enjoy This Slot
- Book-style slot players who prefer Free Spins over many small side features.
- Bonus Buy users who want direct access to the expanding-symbol round.
- Evoplay fans looking for a 5×3 release with a clear feature path.
- Players comfortable with medium-high volatility and planned session limits.
Medium-high volatility can make balance swings sharp.
Set stake limits with Responsible Gambling in mind.
Bonus Structure and Payout Profile
The Free Spins round is the main payout zone because expanding symbols can create wins even from non-adjacent reels. At the start of the round, the chosen expanding symbol is random, so the feature can feel very different depending on whether a low or high pay symbol is selected.
The Ancient Mask meter is the extra layer. Each Scatter collected in Free Spins moves the counter from 7 toward 0, then awards 5 more spins and adds another expanding symbol, with a possible path to 9 expanding symbols if the feature keeps retriggering.
How It Compares With Similar Slots
| Slot | RTP | Volatility | Why it is similar |
|---|---|---|---|
| Book of Dead | 96.21% | High | 10 Free Spins and one expanding symbol |
| Book of Ra Deluxe | 95.10% | High | Classic book setup with 10 paylines |
Use the demo to test the Free Spins pace before choosing Bonus Buy.
The feature is simple, but the mask meter drives most tension.
FAQ
The RTP is 95.96%, based on Evoplay’s listed game data for Book of the Priestess Bonus Buy.
Bonus Buy lets the player purchase direct entry into 10 Free Spins instead of waiting for the Scatter trigger.
One regular symbol becomes expanding, while Scatters charge the Ancient Mask meter for extra spins and more expanding symbols.
Evoplay lists the volatility as medium-high, so the game can have uneven balance swings during short sessions.
Game Screenshots
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