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Book of Helios Slot

Book of Helios
Book of Helios
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Updated: 22.07.2025
Reviewed by: Fabio Duarte

In the Book of Helios slot, you are invited to a thrilling adventure with an acclaimed hero Olivia Brave, as both of you will enter the temple of the Greek God of the Sun - Helios. To be released on 30/06/2022, this is a 5x3 slot, with 10 paylines, which features not only high-quality and an amazing max win, but there are some fantastic features to enjoy, like Free Spins, Expanding Symbols, Multipliers, and a Buy Feature option!

So if you also want to get along on this fantastic journey, join us in this Book of Helios review, where you will find out all the important info: from technical details, RTP, volatility, max win, how to trigger game features, to even where you can play Book of Helios both for free, in a demo mode, and for real money in the best casinos!

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In this review
  1. Slot details
  2. Theme
  3. Bonus Rounds & Free Sipns
  4. Summary
  5. Where to play
General information about Book of Helios slot

General information about Book of Helios slot

Rating by Fabio Duarte:
6.7
User’s Rating: (based on  reviews):
9.0
Betsoft
Write a review +25 SJ points
  • Release Date:
    30.06.2022
  • Volatility:
    High
  • RTP:
    95.6%
  • Multiplier:
    Yes
  • Max. win:
    20,168x
  • Bonus game:
    No
  • Free spins:
    Yes
  • Scatter Symbol:
    Yes
  • Wild symbol:
    Yes
  • Symbol Stacked:
    No
  • Jackpot Game:
    No
  • Slot lines:
    10
  • Slot reels:
    5
  • Layout:
    5-3
  • Stakes range (€/£/$):
    0.2 to 20
  • Slot Theme:
    Ancient Greece
  • Technology:
    HTML5
More infoLess info

Licensed and tested by

  • ADM
  • GLI (Gaming Labs Certified)
  • MGA
  • ONJN
  • Quinel

How to Play

It may seem like the Book of Helios is somewhat too complicated, but once you familiarize yourself with the features and try out the gameplay, you will realize that this is a very simple to play slot. Let us walk you through to get started!

  • Consider the casino you want to play Book of Helios in, register there, make a deposit and then launch this slot
  • When you are in the game set your stake amount - the minimum starts at €0.20 and the maximum is €20
  • Then click on the “⋮” or “i” where you can access the options menu and can read the rules of the game as well as find out the symbol value
  • Next to the reels, you can click on the shopping cart to access the Buy Feature option. It allows you to immediately access the Free Spins feature without the need to wait. The cost of this feature will be automatically calculated for you
  • When you familiarize yourself with all the information and are ready to play, click the spin button or select auto spin! Good luck!

Book of Helios RTP and Volatility

5.8 
The volatility rate of Book of Helios is high, and its Return to Player rate is 95.58%.
Book of Helios will be a great slot for players that want higher risks and bigger rewards. Because in high volatility slot you are at a higher risk of losing, but the reason for that is that the slots of this volatility have much bigger winning than medium or low volatility slots. As for the RTP rate, in Book of Helios, it is set at 95.58% which is just slightly below the industry's average of 96%.

Theme

7 

The central theme of the slot is a mix of Adventure and Greek Gods, which makes for a fantastic experience. To be specific, in the Book of Helios you join our main hero - Olivia Brave as she enters the domain of Helios - the Greek God of the Sun.

We have to say in terms of the design Book of Helios looks very high-quality. Take the background, for instance. You can see the highly detailed and well-made scenery of the temple, and surrounding the reels are the God Helios on his chariot and the 2 horses on the sides of the reel. Speaking of reels those are also really well made, with a stone design that matches the scenery very well. Finally, we can't forget to mention the epic music that plays in the background. Overall, the visuals of Book of Helios certainly deserve an A+ in your book!

Now let's take a closer look at the paytable: you have both regular and unique symbols. The regular ones are 10-A, where 10 and J have the same value of 0.2x, 1x, and 5x for 3, 4, and 5 symbol combo, and these are the lowest paying in the game. The symbols of the higher value are the whip, the bow, our main character - Olivia Brave, and finally, the god Helios himself is the highest paying regular symbol with the value of 2x, 5x, 10x, and 20x for 2, 3, 4, and 5 symbols, respectively.

You also have one special symbol - a book of Helios that acts as both a Scatter and Wild. Just like the Wild, it can substitute for all other symbols in the game, and like a Scatter it can appear on reels 2, 3, and 4 and if you collect three of these scatters they will trigger the Free Spins feature.

Theme
Book of Helios Slot - Paytable

Mobile Compatibility

Mobile Compatibility
Book of Helios uses HTML5 technology and is fully available with both PC as well as iOS and Android, so you can easily play this slot on a smartphone or tablet. Keep in mind though that there is no app and if you want to play Book of Helios on mobile you need to visit the casino of your choice via mobile browser and launch the slot from there, it will work just fine!

About Betsoft

Established in 2006, Betsoft is one of the industry’s top providers, with more than 170 games in its portfolio. Creator of such fantastic and popular slots as Thai Blossoms, Stay Frosty!, Back to Venus, Triple Juicy Drops, and many others, Betsoft implements modern, mobile-friendly technology to give players the best gaming experience.

With a license by Malta Gaming Authority, a bunch of awards, like the Mobile Gaming Provider of the Year category, RNG Casino Supplier of the Year, etc, as well as the millions of fans from around the world, you can be sure that with Betsoft you get nothing but premium quality.

Bonus Rounds & Free Spins

5.9 

Free Spins

By collecting three scatters on the real you will be awarded 10 free spins. Before this feature starts, 1 paytable symbol will be randomly selected and it will become the Special Expanding Symbol.

In this feature, after a payout, all regular wins have two options:

  • If any Wilds are available on the reels they will expand vertically and will cover the entire real revealing a wind multiplier that ranges from 1x to 5x. On top of that, the Wild will substitute for the Special Expanding symbols and will also include any when multipliers it has.
  • If the chosen Special Expanding symbol is located on more than 2 or 3 reels it can form a win that will expand vertically to cover the entire reel.

What we should also mention is that you cannot retrigger free spins when this feature is active.
Book of Helios Slot - Free Spins

Buy Feature

If you want, you can also trigger the Free Spins mode whenever you want, courtesy of the Buy Feature. As we mentioned for that you need to click on the shopping cart symbol next to the reals, and, depending on your current bet, the game will calculate the price for this feature wich is 65.5x the bet.

Book of Helios Demo Play

There is a great option for you to play Book of Helios without having to pay anything or register. With the help of the demo mode, you can enjoy the same game with the same features, with the bigger difference that you will be making bets with and win virtual money.

Max Win

8 
The maximum win in Book of Helios is 20,168x your bet.
Even with the high volatility and an RTP rate that is slightly below the industry's average, the maximum win of 20,168x (plus multipliers!) it's still a fantastic potential. While there is no jackpot, you do have a Bonus Buy feature, which allows you to get 10 free spins immediately, thus improving your winning chances even further!

Overall Rating

6.7
In our humble opinion and given everything we've learned we can certainly say that the Book of Helios is a very immersive interesting and high-quality gam,e that will appeal not only to fans of these thematic but also to those that are looking for a game with big payoffs. From the fascinating and immersive atmosphere to the features this is a very worthwhile game we highly recommend!
Hits
Very well-made design
Great max win
Bonus Buy future that allows you to get free spins immediately
Has multipliers and Expanding symbols
Misses
Low RTP
Only one available bonus game - Free Spins

FAQ-section

Is there a jackpot in the Book of Helios?

No, the game, unfortunately, features no jackpot.

What is the hit rate of Book of Helios?

In the best game, the hit rate of the Book of Helios is, 35.03% and in the Free Spins, the hit rate is 51.73%.

What is the Free Spins trigger chance in Book of Helios?

The trigger chance is 1 in 114 Paid Spins.

What is the minimal resolution recommended for the best Book of Helios experience?

The minimal recommended resolution for desktop is 1280x720, and 960x540 for mobile.

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Fabio Duarte
Fabio Duarte
Expert in: News, Blog, Slot reviews, Payments
Fabio is a young writer with +6 years of experience in gambling & betting. Fabio creates professional reviews of casino and slots. Every single article Fabio made exhibits deep analytical skill and comprehensive coverage of a topic. It’s Fabio – one of the leading authors on slotsjudge.com.

2162 articles

Reviewed by Editor-in-Chief
Nikita Lukanenoks

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Overall rating

Based on 3 reviews

9/10
Scott own avatar
Scott
1 lvl Rookie
10
Lost for words
26.12.2022
Sloto Toto own avatar
Sloto Toto
6 lvl Superstar
8
Winning: €4
Multiplier: x22
Yet another slot of the “Book Of” mechanics with expanding wild symbol during FS.
It’s more epic than you would expect, as it has a potential for huge wins and additional scenario for free spins. Ofc, the the game is FS-oriented, so your main goal should be getting those 3 books.
I’ve triggered FS at first after 60 spins to get only an x22 win. Tried again, bit another 200 spins were empty.
Slot can be incredibly greedy on a down streak, Still, a good modern Book Of example.
Review image 1030-0
30.06.2022
Primstan own avatar
Primstan
6 lvl Superstar
9
Winning: €12
Multiplier: x61
Book of Helios is indeed an inspiring slot from Betsoft. Whenever you spin it, animations create really interactive and immersive atmosphere, simply consuming. At first the slot seems like good old classic book games, however, there is one tiny little things, that create a major difference. Upon landing free spins you will be awarded with 10 spins and random expanding symbol, nothing new here. However, every book acts as a wild and expands along with that random symbol, adding multiplier.
Review image 1026-0
30.06.2022
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