Book of Secrets Extra

Rate This Free Game
(26 votes)
148 more slots

Get up to 300% Welcome Match + 100% Cashback

Ready to play Book of Secrets Extra for real?

Play for Real Money
Book of Secrets Extra Slot Review

Book of Secrets Extra Slot Review

The Book of Secrets Extra slot machine is a spin-off of the Book of Secrets slot from Synot Games, and as the name suggests, it comes with some ‘extra’ magic! So, besides the free spins and gamble feature, there’s a buy bonus option to add a dash of spice to your payout potentials. Win up to 250K coins!

Catch a Flight Back in Time to Ancient Egypt

The Book of Secrets Extra slot machine is another quaint slot in the Synot Games collection, casting a spotlight in the ever so intriguing ancient Egypt. In this edition, we meet up with a stunning brave archeologist in her quest to uncover the treasures that lie in a maroon-ish Pharaoh’s tomb.

The gorgeous explorer, a pharaoh mask, a green scarab, and an ankh cross are the slot game’s highest-earning symbols whereas the A, K, Q, J, and 10 are the lower-paying icons. Moving on to the specials, the Book of Secrets is both the wild and scatter symbol.

Unlock Mysteries to Land Wins on the Reels

Synot Games’ Book of Secrets Extra online slot is a medium-high variance hitter playable on a 5x3 grid layout with 10 fixed paylines, and a high 96.07% RTP. Launch the title and you’ll have the option of setting your wagers between 0.1 and 20 coins for a shot at the payouts listed below:

Five on a Payline
Four on a Payline
Three on a Payline
Two on a Payline
Beautiful Explorer
Pharaoh Mask
Book of Secrets (Scatter)
Green Scarab, Ankh Cross
A, K
Q, J, 10

Hit Massive Rewards via Secret Special Features

As you play Book of Secrets Extra slot online, your reel spinning exercise in will be juiced up by bonus features such as:

  • Free Spins

3 or more scatters unlock 10 free spins to let you play Book of Secrets Extra for free with a randomly selectedn of special symbol from the standard characters. Whenever you earn a win, the special symbol may expand to cover the entire grid and will pay you out irrespective of the positions it occupies on the grid.

  • The Gamble Feature

If your win in a spin doesn’t exceed 125,000 coins, then you will be eligible to play the gamble feature if you like. Guess the correct color of the next face-down card to double your initial win, and you risk the new payout again up to 10 more times. However, an incorrect guess leaves you empty handed. 

  • Buy Feature

If you aren’t down to collecting scattered wild icons to trigger the free spins organically, the Buy Feature is the shortcut your need. Spend 100x your stake (up to 200 coins max) for direct entry into the 10 free spins. However, only non-UK players can experience this feature due to their gaming regulations.

Read Other Mysterious Books

Flip a couple more pages of ‘Book of’ spinners by playing the Book of Alchemy slot by GameArt and the Book of Anime slot by Fugaso.

Rock on With Synot Games

After reading the Book of Secrets Extra online slot review, you should know that it is one of the many  Synot Games slots you can play for free on our site. Get spinning!

Book of Secrets Extra Slot FAQs

Where can I play the Book of Secrets Extra slot for free?

Play Book of Secrets Extra slot for free right here at VegasSlotsOnline whenever you are ready. Experiment the fantastic features without spending any real money or downloading software.

Is the Book of Secrets Extra slot safe to play for real money?

Yes! Like all real money slots created by licensed software providers, the game is 100% safe. For a security guarantee, only play the game for real cash in a certified casino.

Is the Book of Secrets Extra slot available to play on my Windows tablet?

Yes! The Book of Secrets Extra slot is a responsive mobile slot compatible with all tablets powered by Windows, Android, and iOS operating systems without interfering with the game quality.

Is the Book of Secrets Extra slot a good game?

This ancient Egyptian spinner is one of the best new slots you can plat today. While it offers simple gameplay, players still have the room to relish in-game boosters form a touch of modern excitement.

Can I play the Book of Secrets Extra slot with Bitcoin?

Yes, you can. Spin the Book of Secrets Extra Slot machine at any of our favorite Bitcoin casinos. Pick a platform offering Synot Games slots to start playing with BTC today.

Free to Play SYNOT Games Slot Machine Games

Our Favourite Casinos

By subscribing you: consent to receive bonus offers and other emails from VSO; confirm that you are of legal age to gamble in your country of residence; and acknowledge that you have read and accepted our privacy policy. You can unsubscribe at any time. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

You've Won a Free Spin

Claim Bonus

Will You Win?

Choose one of the treasure chests to see if you've won an exclusive bonus.


Treasure Box


Treasure Box


Treasure Box


No thanks

You've Won!

Treasure Box

Enjoy Your Prize!

You've won an exclusive one-time only bonus at:

Get 100% up to $2000 + 20 free spins
Claim Bonus
No thanks

Report a problem with

Let us know what went wrong:

Submit Your Feedback

Thank you for providing feedback! We’re sorry didn’t work.

If you’d like to tell us more about your experience Click here.

While we resolve the issue, check out these similar games you might enjoy.