Slot
The Book of Amaterasu
Mascot Gaming
The Book of Amaterasu is a Mascot Gaming slot released in 2021, built on 5×3 with 10 paylines. Its default theoretical RTP is 95%, volatility is high, and the documented maximum win is 5,550x. The visual identity uses a fantasy setting of magical creatures, castles, fire and enchanted treasure. The gameplay is driven mainly by Book Wild/Scatter, free spins, expanding symbols, so the title’s rhythm depends on how those mechanics change the base reel state.
Layout and pay model
The technical layout is 5 reels by 3 rows with 10 paylines. This pay model defines how much of the screen a single Wild, Rockfall, expanding symbol or Hold & Win sequence can affect. The geometry stays separate from the RTP: changing symbol coverage can alter hit patterns, but it does not turn the theoretical return into a short-session guarantee.
How the mechanics work
The Book works as both Wild and Scatter; when the bonus opens, a chosen symbol can become the special expanding symbol across full reels. Free Spins move the main mechanic into a bonus sequence without requiring a new paid stake, often strengthening Wild, multiplier or symbol-expansion behaviour. An expanding symbol or Wild grows to cover an entire reel when its condition is met, increasing the number of paylines or ways it can complete. Mystery symbols hide their identity until evaluation, then reveal a common symbol or substitute role that can create broader matching groups. The separate risk option lets a completed prize be gambled for a higher return instead of being collected immediately. Buy Feature gives direct paid access to the bonus where enabled, replacing the need to wait for its natural trigger.
RTP and volatility
The default theoretical RTP is 95%. Certified or operator-selected builds can differ, so the value shown in the game information panel is the one that applies to a specific deployment. High volatility concentrates more value in less frequent strong sequences, so short sessions can sit far from theoretical RTP. The documented maximum win is 5,550x.
Theme and gameplay rhythm
The visual style uses a fantasy setting of magical creatures, castles, fire and enchanted treasure. The title was released in 2021. The artwork supports mechanic readability rather than changing the mathematics: special symbols and bonus states are visually separated, while the pay model remains defined by 10 paylines, the default RTP and high volatility.
Who this slot suits
With high volatility, the session rhythm is driven mainly by Book Wild/Scatter, free spins, expanding symbols. High volatility concentrates more value in less frequent strong sequences, so short sessions can sit far from theoretical RTP. This makes the slot a better fit for players who prefer clearly defined bonus mechanics over an overloaded ruleset. The RTP is a long-run theoretical measure, while the documented maximum win is a ceiling rather than a normal session expectation.
FAQ
What is the default RTP of The Book of Amaterasu?
The default theoretical RTP is 95%. Certified or operator-selected builds can differ, so the value shown in the game information panel is the one that applies to a specific deployment.
What layout and pay model does The Book of Amaterasu use?
It uses 5×3 with 10 paylines.
What is the volatility of The Book of Amaterasu?
The most-cited volatility level is high. High volatility concentrates more value in less frequent strong sequences, so short sessions can sit far from theoretical RTP.
What is the maximum win of The Book of Amaterasu?
The documented maximum win is 5,550x.
How do the main bonus mechanics work?
The Book works as both Wild and Scatter; when the bonus opens, a chosen symbol can become the special expanding symbol across full reels. Free Spins move the main mechanic into a bonus sequence without requiring a new paid stake, often strengthening Wild, multiplier or symbol-expansion behaviour. An expanding symbol or Wild grows to cover an entire reel when its condition is met, increasing the number of paylines or ways it can complete. Mystery symbols hide their identity until evaluation, then reveal a common symbol or substitute role that can create broader matching groups. The separate risk option lets a completed prize be gambled for a higher return instead of being collected immediately. Buy Feature gives direct paid access to the bonus where enabled, replacing the need to wait for its natural trigger.