Mascot Gaming

The Book of Amaterasu

A Japanese mythology variation on the expanding-symbol Book format

SlotRanker Score

/ 99

05099

The SlotRanker Score is calculated from the visible data below. It is not affected by affiliate deals, and it cannot be bought.

How this score is built

RTP

95.53%

return to player

Volatility

High volatility

variance

Max win

—

top multiplier

Min bet

$0.20

per spin

Reels

10 lines

Player rating

4.0 ★

5 votes

DEMO Play free, no signup

Mascot Gaming

Embed on your site

4.0 / 5

5 ratings

User ratings are shown separately from the Slot Score unless stated otherwise.

Five weighted signals shape the composite. Four context signals refine ties. See how we rate for the full methodology.

Payouts & RTP8/10

RTP 95.53% → 8.0/10

Volatility9/10

high → 9.0/10

Win Potential—

no data

Features7.5/10

12 features → 7.5/10

Game Mechanics4.2/10

f=12 r=5 p=10 → 4.2/10

Context signals (tie-breakers)

Layout6/10

5x3 → 6.0/10

Bet Flexibility4/10

0.2–20 (×100) → 4.0/10

Provider Reputation6/10

provider avg 6.0 → 6.0/10

Popularity6.7/10

synthetic proxy → 6.7/10

Popularity blends real player search demand (~30 markets) with a catalogue-derived proxy; games without measurable search demand use the proxy alone. Not live play telemetry.

Cite this score

SlotRanker Score: 69 — The Book of Amaterasu by Mascot Gaming

https://slotranker.com/mascot-gaming/the-book-of-amaterasu#score

How to cite

Slot Summary

Choosing whether to risk a win or buy direct access to Free Spins is the decisive action in The Book of Amaterasu. Mascot Gaming places that choice inside a high-volatility, 95% RTP Book Of format where a Mystery symbol serves two jobs and the selected special symbol expands during the feature. The Asia and Mythology identity changes the setting, while the risk decision changes how players reach the game's main payoff route.

How It Plays

The base game uses ten paylines on a 5x3 layout. Its Mystery symbol can substitute in regular combinations while also contributing toward Scatter combinations.

A risk option can exchange a qualifying win for a chance at a more valuable Free Spins series. Bonus Buy offers a separate decision after a non-winning bet.

Theme & Atmosphere

The Asia and Mythology setting centers on Amaterasu, the Japanese sun goddess, replacing the Egyptian imagery commonly associated with the Book Of format.

Lucky imagery, a divine central figure and the book symbol connect the setting to the mechanic without changing the recognizable special-symbol structure.

Mythology Asia Lucky

Features & Win Potential

High volatility concentrates attention on the expanding-symbol feature rather than frequent results of similar size. The listed RTP for this version is 95%.

The Mystery symbol combines substitution with Scatter behavior. That dual purpose means the same symbol can help an ordinary line win or advance feature access.

High volatility Free Spins 5 Reels Expanding Wilds Mystery Symbols Book Of...Bonus Buy Additional Free Spins Expanding Symbols RTP range 10 Paylines Mystery symbol

Bonus & Free Spins

Free Spins select a random special symbol that expands and also pays under Scatter rules, in addition to any regular wins it forms.

Additional Free Spins can retrigger during the round. Bonus Buy provides direct access to the Free Spins series when its jurisdiction and game configuration permit it.

Spec sheet

The Book of Amaterasu at a glance.

Identity

Slot nameThe Book of Amaterasu

StudioMascot Gaming

Released6/3/2021

Math

SlotRanker Score69

RTP95.53%

VolatilityHigh volatility

Max win—

Bet range$0.20 – $20.00

Player rating4.0 / 5 · 5 votes

Format

Reels5

Paylines10

Layout5x3

Features

Themes

Expected average based on this slot's 95.53% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$3.58

Cost per session$3.58

Estimate only, for entertainment purposes — treat gambling as entertainment, not a way to make money, and set a budget you can afford to lose.

How long could a bankroll last on The Book of Amaterasu? We simulate thousands of sessions from this game's published RTP and volatility — the long-run math, not a prediction of your next spin.

Bankroll ($)Bet per spin ($)Speed

Volatility tier: High

Running simulation…

How this works

Each simulated spin either misses or returns a win drawn from a log-normal distribution, with the hit rate and spread set by the slot's volatility tier (High). The model is calibrated so the average return equals this slot's published RTP (95.53%), with wins capped at its top multiplier (1,000×).

This is a simplified, parametric model of the game's math — not its real paytable. It exists to make the house edge visible over many sessions, so the numbers above are averages across thousands of runs, never a forecast of one.

This is math, not a prediction. Real sessions vary wildly, and no strategy changes a game's built-in house edge. Play for fun, set limits, and never bet more than you can afford to lose.

Where to play The Book of Amaterasu

No matching casinos for your region yet

Casino availability depends on where you play from. We only show casinos that accept players from your country.

Compare The Book of Amaterasu with other games

	The Book of Amaterasu Score 69This game	Lunar Rabbit Score 87	Fortune Frog Skillstar Score 81	Temple of Prosperity Score 79	God Of Cookery Score 79
Identity
Studio	Mascot Gaming	GameArt	Lightning Box	Play'n Go	Genesis
Released	6/3/2021	1/23/2023	11/19/2021	9/14/2023	1/25/2018
Math
RTP	95.53%	96.59%	96.07%	96.2%	97.1%
Volatility	High volatility	High volatility	High volatility	High volatility	High volatility
Max win	—	20,000×	4,672×	10,000×	—
Format
Reels	5	7	5	5	5
Layout	5x3	7x7	5x3	5x3	5x4
Paylines	10	—	40	5	100
Min bet	0.2	0.25	0.4	0.1	0.01
Max bet	20	100	50	20	200
Features
Progressive	—	—	—	—	—
Wild symbol	—	✓	✓	—	✓
Free spins	✓	✓	✓	✓	✓
Scatter symbol	—	✓	✓	✓	✓
Multiplier	—	✓	✓	✓	—
Bonus game	—	—	✓	—	—
Respins	—	—	—	—	—

Every number is shown as a delta against The Book of Amaterasu.

Comparing against

The Book of Amaterasu

Mascot Gaming

RTP

95.53%

Max win

—

Score

+ Wild+ Scatter+ Multiplier

Fortune Frog Skillstar

+ Wild+ Scatter+ Multiplier+ Bonus Game

+ Scatter+ Multiplier

Explore More Games with Similar RTP

	Provider	RTP	Volatility	Max win	Score
House of Fun	Betsoft	94.96%	Medium volatility	—	66
Mystic Panther Treasures of the Wild	Infinity Dragon Studios	94.97%	High volatility	14,000×	71
Wild Fox	BGaming	94.98%	Medium volatility	2,000×	70
Cyber Wildz	Greentube	94.99%	High volatility	20,000×	73
Gold Rush Frenzy Megaways	Four Leaf Gaming	95%	High volatility	50,000×	83
Monkey God Hold and Win	Kalamba Games	95.01%	High volatility	10,000×	77
Rabbit Garden	Pragmatic Play	95.02%	High volatility	10,000×	82
Megapearl Gigablox	ReelPlay	95.03%	High volatility	16,297×	81
Diamond Tales: The Ugly Duckling	Greentube	95.04%	High volatility	50,000×	80
Stinkin' Rich Super Rich Re-Spins	King Show Games	95.05%	High volatility	37,800×	76
The Book of Amaterasu	Mascot Gaming	95.53%	High volatility	—	69