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Play Book of Helios for Free in Demo Mode by Betsoft Gaming

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Book of Helios

Game information

Game developer Betsoft Gaming
Progressive Jackpot
Configurable winlines
Free spins
Quickspin feature
Gamble feature
Number of winlines 10
Layout 3-3-3-3-3
Min bet $0.1
Max bet $10.0
Release date February 2023
Last update 11 Sep 2022
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Book of Helios

Try Book of Helios slot online for free in demo mode with no download and no registration required and read the game's review before playing for real money.

6.22 Guru Score
Quick verdict

This average RTP (96%), high volatility Greek mythology-themed slot is filled with dramatic adventure and fun bonuses.

Read full review

About game provider

Book of Helios review

Theme and Storyline

Book of Helios has a Greek mythology theme.

Players will be transported to an ancient world of chariots, gods, and magic. With some weapons at hand, they’ll come face-to-face with Helios, a fierce god of the sun.

This slot is an excellent choice for fans of ancient Greek mythology, and those in the mood for a dramatic fantasy.

Graphics, Sounds and Animations

The cinematic soundtrack sets an epic mood and brings to mind the climactic moment in a film when the hero meets the villain. The reels spin with the metallic clink of chains, adding a visceral feel to the gameplay.

On the reels, players will see an array of stone letters animated in the style of the Greek alphabet. They’ll also find a mysterious book, a golden bow and arrow, and a coiled leather whip.

Helios himself looms over the reels, his eyes glowing red, and his skin cracked like old stone. His expression is cryptic and intimidating. Players will also encounter a tough-looking heroine who peers out from her reel unafraid of the supernatural forces she faces.

Overall, the graphics and soundtrack combine to create an engaging world of ancient myth and adventure.


Book of Helios is a five reel, three row slot with 10 win lines.

The gameplay is swift and exciting, ensuring players will have no difficulty paying attention.

Players can buy directly into the Bonus if they choose (please see further details below).

Gameplay video

Wilds, Bonuses and Free Spins

The Wild symbol substitutes for all symbols. The Wild symbol also functions as a Scatter and appears on reels 2, 3, and 4.

If players land 3 or more Scatters, the Free Spins feature is triggered, starting with 10 free spins.

During the Free Spins feature, one paying symbol is chosen at random to function as a special expanding symbol.

If the special expanding symbol appears on 2 or more reels and a win is possible, the symbol expands vertically to cover the whole reel. The special expanding symbol pays like a regular symbol would, even on non-adjacent positions and on every line played.

If any Scatter-Wilds are present on the reels during this time, they expand vertically to cover their whole reel. They also reveal a win multiplier which can be between x1 and x5.

While in the Free Spins feature, it is not possible for players to acquire additional free spins.

Bet Sizes, RTP and Variance

The return to player of this game is 96%, right on our yardstick for average of roughly 96%.

The range of bets on the site we tested ran from a minimum bet per spin of $/£/€0.10 up to a maximum of $/£/€10.00 per spin.

The volatility of Book of Helios is high, which makes it a great match for our preferred slot machine strategies. Our slot strategies target the highest possible volatility.


We recommend this average RTP, high volatility Greek mythology-themed slot.

With a respectable RTP and robust volatility, Book of Helios is a solid pick for mathematically minded players.

The eye-catching animation and bonuses add further appeal to this engaging slot.

Author: Jon Pill | This review was last updated: 12 Aug 2022
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