Book of Secrets Extra

Book of Secrets Extra slot free play demo

This is our own slot rating based on how popular the slot is, RTP (Return To Player) and Big Win potential.

Play Book of Secrets Extra free demo from Synot. Try without cost, just for fun. The best way to learn the rules, features and how to play the game. Also read our unique Book of Secrets Extra review with rating to get important information about Book of Secrets Extra slot.

Released:October 5 2022

Key Features
  • RTP: 95.18%
  • Max Win: 5000x
  • Volatility: High (4/5)
  • Reels: 5
  • Paylines/Ways: 10
Game Mechanics: Themes:

Book of Secrets Extra Slot Free Play

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Book of Secrets Extra Review

Book of Secrets Extra base game review

Book of Secrets Extra Reviewed October 5 2022 by

Book of Secrets Extra is a video slot from the provider Synot. In this Book of Secrets Extra slot review you can read more about the features of the game.

Pros and Cons of Book of Secrets Extra


  • Decent Max Win at 5000x
  • Bonus Buy
  • Popular Theme


  • Average RTP (95.18%)
  • No Progressive Jackpot
  • Bonus Buy Restricted in Some Countries

Gameplay and Atmosphere

This casino game has a layout that consists of 5 reels and up to 10 paylines / ways. Book of Secrets Extra is featuring theme and atmosphere related to Book, Egypt, Egyptian, Explorer, Pyramids, and even more.

Game Features

Book of Secrets Extra has several features including Buy Feature, Expanding Symbols, Gamble, Retrigger, Scatter Pays, Special Symbol, Wilds, and more. The game has a free spins bonus and this is usually where you can win the big money.

Max Win Potential and RTP

The RTP (Return to Player) for Book of Secrets Extra slot is 95.18%. This payback is good and considered to be about average for an online slot. Theoretically, this means that for every €100 put into the game, the expected payout would be €95.18. However, the RTP is calculated on millions of spins, which means that the output for each spin is always random.

The highest possible payout for this slot is 5000x your total bet which is pretty high and gives you the chance to win quite big wins. The maximum possible win is also calculated over a huge amount of spins, often one billion spins.


Book of Secrets Extra is a high volatile slot, and Synot rates the volatility High (4/5). Volatility, in the context of slot games, refers to how often and how much a slot game pays out. Book of Secrets Extra is designed to appeal to those who enjoy the adrenaline rush of substantial winnings that low volatility slots can't deliver, and are willing to accept the inherent risks of less frequent payouts.

Release Date

Book of Secrets Extra was released on October 5 2022.


This is our own slot rating based on how popular the slot is, RTP (Return To Player) and Big Win potential.

Frequently Asked Questions

How to play Book of Secrets Extra with real money?

- To play Book of Secrets Extra with real money, follow these simple steps:

  • Find a trustworthy online casino that offers Book of Secrets Extra, preferably one of our recommended casinos in this review.
  • After selecting a casino, make sure to sign up and deposit money in order to start playing with real cash, remember to take advantage of the welcome bonus.
  • Check out the casino's slot section to find Book of Secrets Extra game.
  • Click on the game and choose the amount you want to bet.
  • All you have to do now is click on the "spin button" and cross your fingers for a big win. Don't forget to play responsibly and set a budget for your gaming.

Can I play Book of Secrets Extra with free spins?

- Yes! You can try our Book of Secrets Extra free play demo for fun, without risk of losing any money, right here on You can also play fake money demos with free spins at most of our recommended casinos that have slots from Synot.

Can I have a Book of Secrets Extra bonus?

- Yes! Most of our recommended online casinos offers a first deposit bonus that you can use on Book of Secrets Extra.

Can I win big on Book of Secrets Extra?

- You can win average amounts of up to 5000x your stake on this game.

Example: If you bet 1 EUR you can win 5000 EUR at most (when playing with real money).

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