Book of Aztec Bonus Buy Slot Review
Book of Aztec Bonus Buy is Amatic’s classic Book-style slot with 10 paylines, 5×3 reels, and a Bonus Buy option. Trigger free spins with 3+ Books and play for expanding-symbol wins.
This review covers how the Book symbol works as Wild + Scatter, how the expanding-symbol free spins feature is selected, and what high volatility means if you’re using the Bonus Buy.
Book of Aztec Bonus Buy key information
| Provider | Amatic Industries |
|---|---|
| Release date | August 2022 |
| Game type | Video slot |
| RTP | 97.63% (listed) |
| Volatility | High (listed) |
| Max win | 5,000× (commonly listed) |
| Reels / rows | 5 / 3 |
| Paylines / ways | 10 fixed paylines |
| Min / max bet | 1 – 3,000 (coins) |
| Bonus Buy | Yes |
| Theme | Aztec, jungle, ancient temple |
Some casinos run different configurations of the same slot. If the in-game info panel in your casino shows a different RTP or limits, follow your casino’s version for the final numbers.
What Book of Aztec Bonus Buy is
Book of Aztec Bonus Buy takes the classic “Book of…” formula and adds a direct feature purchase. You play on a familiar 5×3 setup with 10 fixed paylines,
exploring an Aztec jungle full of artifacts, coins, and the iconic BOOK symbol that drives both base wins and the bonus flow.
The Book symbol: Wild + Scatter in one
The BOOK is the centerpiece: it substitutes like a Wild, and it also works as the Scatter. That means it can pay anywhere on the reels,
while also serving as the trigger for bonus spins when enough appear.
Free spins with expanding symbols
Land 3+ BOOK symbols to enter the free spins round. At the start of the bonus, one regular symbol is selected as the expanding symbol (the BOOK itself is excluded).
When the chosen symbol lands during free spins, it expands to cover the reel and pays on all active lines—this is where the biggest swings usually happen.
Main features
- Book of… mechanic: BOOK acts as Wild and Scatter, paying anywhere.
- Free spins: triggered by BOOK scatters; can retrigger in some sessions.
- Expanding symbol: randomly selected at the start of the bonus (excluding BOOK).
- Bonus Buy: purchase access to the feature (availability depends on casino settings).
High volatility usually means quieter base-game stretches and bigger spikes when the expanding-symbol bonus performs well. If you use Bonus Buy, set a session budget and a strict stop point first.
Who will enjoy this slot
- Fans of classic Book slots who want a faster route to features.
- Players comfortable with high volatility and bonus-driven results.
- Anyone who likes simple fixed paylines (10 lines) instead of complex grids.
- Aztec/adventure theme lovers who prefer a straightforward ruleset.
Two similar slots to compare
| Slot | Why it’s similar | What’s different |
|---|---|---|
| Book of Aztec | Same base “Book” identity and expanding-symbol free spins. | May not include the same Bonus Buy structure depending on version. |
| Book of Fortune | Another Amatic Book-style game with feature-led swings. | Different theme and tuning/volatility feel depending on casino build. |
18+ only. Gambling is entertainment with risk—use limits and take breaks. More guidance: Responsible Gambling.
It’s listed at 97.63% RTP. Some casinos may run different RTP configurations, so check the in-game info panel for your exact version.
Yes—it’s listed as high volatility. Expect quieter periods mixed with bigger spikes when the expanding-symbol bonus performs well.
Free spins trigger when you land 3 or more BOOK symbols (Scatter) anywhere on the reels.
Bonus Buy lets you purchase direct access to the bonus spins feature (if enabled in your casino). It speeds up feature access but can increase session swings.
Game Screenshots
Top real money casinos
iWild Casino is a Goodwin N.V. brand launched in 2021 under a Curacao license. The site offers 10,000+ games, 174 live dealer tables, fiat and crypto payments, cashback up to 20%, and two welcome packages: a standard 550% casino bonus and a separate VIP offer for high rollers.
Gamblezen Casino combines a huge game library, strong promotions, many payment options, and VIP cashback in a Curacao-licensed platform launched in 2023.
Hypekasino is a new online casino focused on gamified rewards, weekly promos, and a large multi-provider game library. The main highlight is Hype Shop, where Hype Coins can be exchanged for wager-free free spins, bonus games, bonus money, and even real cash. It also supports several fiat account currencies, 24/7 live chat, and loyalty-based withdrawal upgrades.
Bizzo Casino is a Curacao-licensed online casino launched in 2021 with 5,000+ games, 20+ account currencies, app support, weekly promos, and withdrawal limits up to €/$4,000 per day. Payments and bonus terms can vary by country and promo version.
Riobet was one of the first casinos to introduce CP-based quests that reward players with bonuses and status progress.
TonyBet.nl is a unique casino and sportsbook platform for the Netherlands. You get 3,000+ games, fast banking, two bonus programmes and no cashout limits. Withdrawals are typically 12–24 hours, but some methods can take up to several business days.
Starda combines casino games and sports betting on the same platform and backs that up with a busy promotions calendar. The welcome package is larger than average, while cashback, Birthday bonus, VIP rewards, and sports bonuses make the account more useful over time instead of only at signup.
Starda combines casino games and sports betting on the same platform and backs that up with a busy promotions calendar. The welcome package is larger than average, while cashback, weekly reloads, VIP rewards, and sports bonuses make the account more useful over time instead of only at signup.
Starda combines casino games and sports betting on the same platform and backs that up with a busy promotions calendar. The welcome package is larger than average, while cashback, weekly reloads, VIP rewards, and sports bonuses make the account more useful over time instead of only at signup.
Trickz is a promo-heavy online casino built around a 4-step welcome pack, weekly rewards, and a loyalty model that adds more value over time. The platform also stands out for fast withdrawals, broad payment coverage, and recurring provider campaigns that keep the promotions page active after signup.
Winnerz is a multi-product platform that combines online casino play with sportsbook betting under one account. The biggest draw is not only the welcome package, but the way weekly cashback, loyalty rewards, weekend promos, provider tournaments, and sports campaigns keep the platform active after the first deposits.
Winnerz is a multi-product platform that combines online casino play with sportsbook betting under one account. The biggest draw is not only the welcome package, but the way weekly cashback, loyalty rewards, weekend promos, provider tournaments, and sports campaigns keep the platform active after the first deposits.
Wisho is a euro-only online casino available in selected EU countries (Estonia, Finland, Ireland, Denmark, Sweden), focused on simple payments, controlled access, and a streamlined game library without multi-currency complexity.
Mason Slots combines a distinctive Masonic theme with 5,000+ games, a welcome package up to €/$300 + 100 free spins, and one of the more detailed VIP ladders in this segment. It is especially appealing for slot-focused players who value fast withdrawals, level rewards, and recurring tournaments.
Avalon78 Casino blends a medieval theme with a 4,000+ game library, welcome bonuses, and VIP rewards. It suits players who enjoy immersive design alongside regular promotions and a broad provider mix.
WooCasino is a casino and sportsbook platform launched in 2020 with fiat and crypto payments, a 4-step welcome pack up to $/€3,500 + 200 free spins, sportsbook offers, cashback, daily races, and a VIP program that can end with a Porsche 911.
