Synot Games

Book of Secrets

Slots Video Slots Action & Adventure History Egypt Book Carnival Exploration Ancient

High-volatility Egyptian Book slot with expanding symbols

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

96.05%

return to player

Volatility

High volatility

variance

Max win

6,227×

top multiplier

Min bet

$0.20

per spin

Reels

10 lines

Player rating

4.9 ★

1 votes

DEMO Play free, no signup

Synot Games

Embed on your site

4.9 / 5

1 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 & RTP9/10

RTP 96.05% → 9.0/10

Volatility9/10

high → 9.0/10

Win Potential7.6/10

x6227.00 (6227×) → 7.6/10

Features8.5/10

14 features → 8.5/10

Game Mechanics4.2/10

f=14 r=5 p=10 → 4.2/10

Context signals (tie-breakers)

Layout6/10

5x3 → 6.0/10

Bet Flexibility6/10

0.2–100 (×500) → 6.0/10

Provider Reputation6.1/10

provider avg 6.1 → 6.1/10

Popularity5/10

synthetic proxy → 5.0/10

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: 73 — Book of Secrets by Synot Games

https://slotranker.com/synot-games/book-of-secrets#score

How to cite

Slot Summary

Anyone comfortable with high volatility and a 6227x ceiling has the clearest reason to examine Book of Secrets. Synot Games uses the established Book formula in a compact 10-line format: the Book handles Wild and Scatter duties, opens Free Spins, and hands one randomly selected regular symbol the power to expand across reels during the feature.

How It Plays

The base game evaluates combinations over 10 paylines on five reels. The Book can replace ordinary symbols, contribute its own Scatter award, and unlock the feature.

After a qualifying base-game win, the Risk/Gamble Double game offers a separate card-color decision. A correct choice doubles the amount placed at risk.

Theme & Atmosphere

Egypt, Ancient history, and Exploration frame the action as an archaeological search for a pharaoh's hidden treasure, with the Book serving as the central artifact.

The Action and Adventure treatment comes from the explorer and tomb-search premise. Carnival imagery sits outside that main Egyptian identity and does not control the mechanics.

Action & Adventure History Egypt Book Carnival Exploration Ancient

Features & Win Potential

Substitution Symbols support ordinary line formation through the Wild Book, while the Expanding Symbols rule applies to the separately chosen symbol inside Free Spins.

The Risk/Gamble Double game follows completed wins rather than changing reel outcomes. It allows a color guess on a card, with the chosen amount lost after an incorrect call.

High volatility Free Spins Scatter Symbol Wild Symbol 5 Reels Gamble Sub Symbols In Feature Book Of...Expanding Symbols RTP range 10 Paylines 96% RTP Risk/Gamble (Double) game Substitution Symbols

Bonus & Free Spins

Three Book symbols trigger 10 Free Spins and cause one regular symbol to be selected randomly as the special Expanding Symbol.

During the round, the selected symbol can cover its full reel when enough copies are present to form a win, then pays without requiring adjacent reels.

Three more Books retrigger the feature with another 10 Free Spins. The same selected expanding symbol continues through the added spins.

Spec sheet

Book of Secrets at a glance.

Identity

Slot nameBook of Secrets

StudioSynot Games

Released2/1/2018

Math

SlotRanker Score73

RTP96.05%

VolatilityHigh volatility

Max win6,227×

Bet range$0.20 – $100.00

Player rating4.9 / 5 · 1 votes

Format

Reels5

Paylines10

Layout5x3

Expected average based on this slot's 96.05% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$3.16

Cost per session$3.16

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 Book of Secrets? 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 (96.05%), with wins capped at its top multiplier (6,227×).

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 Book of Secrets

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Compare Book of Secrets with other games

	Book of Secrets Score 73This game	Jungle Jim and the Lost Sphinx Score 79	Book of Duat Score 75	Book of Montezuma Score 73	Cat Wilde and the Lost Chapter Score 73
Identity
Studio	Synot Games	Stormcraft Studios	Quickspin	Amatic	Play'n Go
Released	2/1/2018	11/3/2019	11/9/2021	6/12/2023	12/18/2020
Math
RTP	96.05%	96.3%	94%	97.13%	96.2%
Volatility	High volatility	High volatility	High volatility	High volatility	High volatility
Max win	6,227×	6,250×	32,760×	5,000×	10,000×
Format
Reels	5	5	5	5	5
Layout	5x3	5x3	5x3	5x3	5x3
Paylines	10	50	10	10	10
Min bet	0.2	0.1	0.1	0.1	0.2
Max bet	100	20	100	100	100
Features
Progressive	—	—	—	—	—
Wild symbol	✓	✓	✓	✓	✓
Free spins	✓	✓	✓	✓	✓
Scatter symbol	✓	✓	✓	✓	✓
Multiplier	—	✓	✓	—	—
Bonus game	—	—	✓	—	—
Respins	—	✓	—	—	—

Every number is shown as a delta against Book of Secrets.

Comparing against

Book of Secrets

Synot Games

RTP

96.05%

Max win

6,227×

Score

Jungle Jim and the Lost Sphinx

+ Multiplier+ Respins

+ Multiplier+ Bonus Game

Cat Wilde and the Lost Chapter

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