If our Book of Helios free play version convinced you to give this game a try, continue reading our slot review and see if this game is truly for you. You will not only learn some useful tips and tricks which will help you win more, you will also be pointed towards other similar games and towards the best online casinos in which you can play the game.
Even more so, our review also contains many of the important technical details, instructions about how to play the game and analysis of the design which might be of interest to both amateurs and real slot fans.
Theme and Design
The game design is reason enough to consider giving this game a try. Seeing how everything unfolds on the grid and around it is truly an experience you shouldn’t miss.
First, the background, which depicts the dark halls of the temple of the Greek god Helios. You will see his statue together with the statues of his two horses around the grid, staring at you with flashy red eyes.
The grid itself will be the place on which many effects and cool animations will take place. The symbols start pumping when they connect and the Scatter lands on the reel accompanied by a yellow bolt falling from above. Also, when spinning, the outlines of the reels start turning red as if they would grind to each other at a very fast speed. During the free spins, both the angry god and his horses come to life and you are transported in a sky full of flames and storms. 
The sound design complements the atmosphere perfectly. There are two epic soundtracks which play during the free spin and the normal part of the slot. Also, each individual reel will make a metallic sound when stopping in place.
Technical Features
Reels
5
Rows
3
Paylines
10
Adjust paylines
❌
Min. bet
0.20
Max. bet
20
Jackpot
❌
Gamble
❌
Autoplay
✔️
Free spins
✔️
Bonus round
❌
Lines pay
left to right
Wager limits
| Reels | 5 |
|---|---|
| Rows | 3 |
| Paylines | 10 |
| Adjust paylines | ❌ |
| Min. bet | 0.20 |
| Max. bet | 20 |
| Jackpot | ❌ |
| Gamble | ❌ |
| Autoplay | ✔️ |
| Free spins | ✔️ |
| Bonus round | ❌ |
| Lines pay | left to right |
The wager limits will be comfortable for beginners who want to try a mythology inspired slot for the first time or just want a simple game with few special features to worry about, but still with good design and up to date interface. The only problem is that they can’t go higher than 20 pounds.
Bonus features
The game has few bonus features to worry about:
- Free spins - landing 3 book Scatter symbols will give you 10 free spins. During these spins, one symbol is chosen as a special symbol, making it extend on the whole reel when it appears and being able to connect in winning combinations from everywhere on the grid. The Scatter gives more spins when appearing at least 3 times and it also gives random multipliers. Free spins can be bought anytime in the game
- Wild symbol - the book Scatter is also a Wild.
Slot tip: Don’t go overboard with buying free spins. They might not always be the best choice for your deposit and you could be a few spins away from actually landing 3 Scatter symbols.
RTP and volatility
The Book of Helios RTP rate sits at an average 95.58%. This is not great, but neither bad. Plenty of big wins can still be pulled from this game. The volatility is high which means most of the profits will come from rare big wins or free spins in which your earnings can get multiplied. This video slot is great for the high risk high reward type of players.
Symbols
The symbols are beautifully drawn and a close look at them will reveal many fine details like shadows, fine patterns and textures. First, there are the low paying card inspired symbols, the 10, J, Q, K and A. The higher paying symbols are the following: the whip, the bow, the woman and the most valuable one, the god Helios Symbol. 
How to play Book of Helios
The game interface is modern and will prove easy to learn. On the bottom you will see your cash deposit, your bet value which can be adjusted and the value of your latest win. On the right side of the screen you will see the spin and auto-play buttons. Also, by pressing the I button or the 3 dotted one, you will be transported to a menu which will explain the paylines and bonus features.
Slot tip: Try the Book of Helius demo version to get used to all the features and functions. Even though the game is simple enough, you might still be surprised by some buttons when playing the real money version.
Best Casinos to Play Book of Helios Slot with Real Money
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Book of Helios Free Spins and Bonus Offers
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Book of Helios Compared to Other Mythology Slots
Book of Helios
Book of Ra Deluxe
Gods of Olympus
RTP
95.58
95.10
97.50
Progressive
❌
❌ / ✔️
❌
Volatility
high
high
medium
Max Wager
20
20
25
Wilds
✔️
✔️
✔️
Scatters
✔️
✔️
✔️
Autoplay
✔️
✔️
✔️
Ways to win
10
10
20
SlotsCalendar Verdict
|
|
Book of Helios
|
Book of Ra Deluxe
|
Gods of Olympus
|
|---|---|---|---|
| RTP | 95.58 | 95.10 | 97.50 |
| Progressive | ❌ | ❌ / ✔️ | ❌ |
| Volatility | high | high | medium |
| Max Wager | 20 | 20 | 25 |
| Wilds | ✔️ | ✔️ | ✔️ |
| Scatters | ✔️ | ✔️ | ✔️ |
| Autoplay | ✔️ | ✔️ | ✔️ |
| Ways to win | 10 | 10 | 20 |
Hits:
- great graphics
- awesome sound design
- great for both amateurs and veterans
Misses:
- few special features
