Synot Games
Book of Secrets Extra
Play Book of Secrets Extra slot by Synot Games for free in demo mode! Explore RTP, bonus rounds, and key features before playing for real.
RTP
96%
return to player
Volatility
High volatility
variance
Max win
500×
top multiplier
Min bet
$0.20
per spin
Reels
5
10 lines
Player rating
3.9 ★
9 votes
Why this score
High confidence (100%)Five weighted signals shape the composite. Four context signals refine ties. See how we rate for the full methodology.
Payouts & RTP9/10
RTP 96% → 9.0/10
Volatility9/10
high → 9.0/10
Win Potential5.4/10
x500.00 (500×) → 5.4/10
Features9.5/10
16 features → 9.5/10
Game Mechanics10/10
f=16 r=5 p=10 → 10.0/10
Context signals (tie-breakers)
Layout6/10
5x3 → 6.0/10
Bet Flexibility2/10
0.2–1 (×5) → 2.0/10
Provider Reputation6.9/10
provider avg 6.9 → 6.9/10
Popularity4/10
synthetic proxy → 4.0/10
DEMO Play free, no signup
Synot Games
Spec sheet
Book of Secrets Extra at a glance.
Math
Index score75
RTP96%
VolatilityHigh volatility
Max win500×
Bet range$0.20 – $1.00
Player rating3.9 / 5 · 9 votes
Format
Reels5
Paylines10
Layout5x3
Features
Themes
Compare Book of Secrets Extra with other games
 Book of Secrets Extra Score 75This game |  Book of Conquistador Score 78 |  Jenny Nevada and the Diamond Temple Score 74 |  Book of Duat Score 81 |  Book of Adventure Super Stake Edition Score 79 | |
|---|---|---|---|---|---|
| Identity | |||||
| Studio | |||||
| Released | 10/6/2022 | 1/12/2024 | 2/11/2025 | 11/9/2021 | 6/30/2020 |
| Math | |||||
| RTP | 96% | 96.05% | 95.93% | 94% | 96.68% |
| Volatility | High volatility | — | — | High volatility | High volatility |
| Max win | 500× | — | 5,000× | 32,760× | 5,503.5× |
| Format | |||||
| Reels | 5 | 5 | 5 | 5 | 5 |
| Layout | 5x3 | 5x3 | 5x3 | 5x3 | 5x3 |
| Paylines | 10 | 10 | 20 | 10 | 10 |
| Min bet | 0.20 | 0.10 | 0.20 | 0.10 | 0.10 |
| Max bet | 1.00 | 45.00 | 20.00 | 100.00 | 100.00 |
| Features | |||||
| Progressive | — | — | — | — | — |
| Wild symbol | ✓ | ✓ | ✓ | ✓ | ✓ |
| Free spins | ✓ | ✓ | ✓ | ✓ | ✓ |
| Scatter symbol | ✓ | ✓ | ✓ | ✓ | ✓ |
| Multiplier | — | — | ✓ | ✓ | — |
| Bonus game | — | — | ✓ | ✓ | — |
| Respins | — | — | — | — | — |
Every number is shown as a delta against Book of Secrets Extra.
Comparing against
Book of Secrets Extra
Synot Games
RTP
96%
Max win
500×
Score
75
Book of Conquistador
Endorphina
RTP
96.05%same
Volatility
—Max win
—
Score
78▲+3
Same feature set
Jenny Nevada and the Diamond Temple
Rival Gaming
RTP
95.93%▼−0.1
Volatility
—Max win
5,000×▲+4,500
Score
74▼−1
+ Multiplier+ Bonus Game
Book of Duat
Quickspin
RTP
94%▼−2
Volatility
High volatilityMax win
32,760×▲+32,260
Score
81▲+6
+ Multiplier+ Bonus Game
Book of Adventure Super Stake Edition
StakeLogic
RTP
96.68%▲+0.7
Volatility
High volatilityMax win
5,503.5×▲+5,004
Score
79▲+4
Same feature set
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