Book of Poseidon slot – Play the Demo & Master the Jackpot Quest!

Book of Poseidon is an Ancient Greek mythology-themed slot developed by Booming Games, featuring 5 reels, 3 rows, and 10 paylines. As a high-volatility game with an RTP of 95.68%, it provides an exciting but risky experience for players. The game is built around the popular “Book” mechanic, where the Book of Poseidon acts as both the wild and scatter, triggering free spins with expanding symbols.
While the graphics are simple, the game offers unlimited retriggerable free spins, a gamble feature for risk-takers, and a maximum win of 5,000x the stake. Fans of classic “Book of” slots may find Book of Poseidon appealing, despite its lack of innovation in design and features.
Game Theme, Design, and Sound Effects
The game takes players deep beneath the ocean, where Poseidon, the Greek God of the Sea, reigns. The reels are encased in a golden frame, with the deep-sea backdrop featuring coral, underwater plants, and ruins of an ancient civilization.
Graphics and Symbols
The graphics are decent but lack animation. There are no moving sea creatures or bubbles, making the underwater setting feel static.
Sound and Music
- The background music is an orchestral score, which adds an epic feel but lacks originality.
- Spin and win effects are simple, with no immersive underwater soundscapes.
- The audio doesn’t enhance the theme as effectively as other slots in the same genre.

Gameplay and Features
Reels and Paylines
- 5 reels, 3 rows, and 10 fixed paylines.
- Winning combinations are formed from left to right.
Symbols
- Poseidon – Pays 5,000x for five-of-a-kind.
- Kraken – Pays 1,600x for five-of-a-kind.
- Dolphin & Turtle – Pays 600x for five-of-a-kind.
- A, K – Pays 120x for five-of-a-kind.
- Q, J, 10 – Pays 80x for five-of-a-kind.
Bonus Features
The game’s core mechanics revolve around the Book symbol, which serves both as a wild and scatter.
Book of Poseidon Wild/Scatter Symbol
- Acts as a wild, substituting for all symbols to create winning combinations.
- Acts as a scatter, triggering 8 free spins when 3 or more land on the reels.
Free Spins with Expanding Symbols
- Triggered by landing 3 or more Book of Poseidon scatters.
- A random symbol is selected to become an expanding symbol.
- The selected symbol expands to cover an entire reel when part of a win.
- The free spins feature can retrigger indefinitely, allowing for potentially unlimited spins.
Gamble Feature
After a winning spin, players can choose to gamble their winnings.
Options:
- Guess the color (Red or Black) → 2x winnings.
- Guess the suit (Hearts, Diamonds, Spades, Clubs) → 4x winnings.
Losing the gamble means forfeiting winnings from that spin.
Winning Combinations
- Wins are formed by landing 3+ matching symbols on a payline, starting from the leftmost reel.
- Expanding symbols in free spins increase chances of landing big wins.
Autoplay and Quick Spin Options
- Autoplay allows players to set a specific number of spins.
- Turbo mode speeds up spins for faster gameplay.

Betting Options, RTP, and Volatility
- Minimum bet: 0.10 per spin.
- Maximum bet: 20 per spin.
- RTP: 95.68% (slightly below industry average).
- Volatility: High, meaning big wins are possible, but payouts may be less frequent.
How to Play
- Verify Your Bet – Click the chip icon and adjust the bet size.
- Spin the Reels – Press the spin button to begin.
- Autoplay/Turbo Mode – Choose to automate gameplay or speed up spins.
- Trigger Free Spins – Land 3 or more Book of Poseidon scatters to activate the bonus round.
- Use Gamble Feature – After a win, opt to gamble winnings for a chance to multiply them.
Mobile Compatibility
- Fully optimized for mobile (Android & iOS).
- Same features and gameplay as the desktop version.
- Responsive and smooth performance on smaller screens.
Pros and Cons
Pros:
- Unlimited retriggerable free spins.
- Gamble features for extra risk and rewards.
- Expanding symbols increases win potential.
- Classic “Book of” gameplay fans will enjoy it.
Cons:
- Static background and uninspired design.
- Lower-than-average RTP (95.68%).
- Lack of innovation compared to other "Book" slots.
Conclusion
The Book of Poseidon slot is a solid yet uninspired entry in the “Book of” game genre. While it features classic mechanics like expanding symbols and unlimited free spin retriggers, it doesn’t offer anything groundbreaking. The high volatility and gambling feature add to its thrill factor, but the uninspiring graphics and lower RTP may disappoint some players.
Who Would Enjoy This Slot?
- Fans of high-volatility slots who enjoy big-risk, big-reward gameplay.
- Players who like the “Book of” slot mechanics.
- Gamblers who enjoy free spins and gamble features.
If you love Greek mythology-themed slots and expanding symbol mechanics, the Book of Poseidon slot is worth trying in demo mode first. However, those looking for innovation or high RTP might prefer other options. Play this or many other legit slots here at our verified online casino, Tower.bet.