Book of Helios Slot Game Review by Betsoft

Book of Helios Slot Game Review by Betsoft

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  • developed by Betsoft
  • 5-reel, 3-row, 10-payline video slot
  • mythological features and bonuses
  • Lower RTP 95.58%

Book of Helios Slot Game Review by Betsoft

Betsoft’s Book of Helios has recently landed in the world of slot gaming, promising an adventure through ancient Greek mythology bathed in the golden light of Helios, the sun god. However, in this game, we are taken on an adventure female adventurer as we go exploring the god’s temple! Join me as we step into the world of gods and mortals in pursuit of mythical riches.

How to Play

Book of Helios is a 5-reel, 3-row, 10-payline video slot that takes you into the magical realm of Greek myths. Begin your magical journey by manipulating the intuitive buttons to modify your bet size so that you can enjoy this adventure of great proportions. There you will choose your coin value as well as the amount of coins to stake per line respectively. Now, your choices of odds are done; press on that ‘spin’ option, and now it is your adventure in search of mythical payouts atop the sacred Helios’s shrine.


The symbols in Book of Helios pay homage to Greek mythology, featuring a collection of iconic elements. You’ll encounter symbols such as whips, crossbows, the female adventure, Helios, and the classic playing card symbols (A, K, Q, J, 10). The highest-paying symbol is Helios, but the book is perhaps more valuable as it serves as both the wild and scatter symbol. This symbol is central to the game’s features and the key to unlocking the riches hidden within.

Return to Player Rate (RTP)

Understanding the return to player rate (RTP) is crucial when assessing any slot game, and Book of Helios offers a competitive RTP of approximately 95.58%. This signifies that, on average, players can anticipate below-average returns on their wagers over time given the industry average of 96%, but there is a lot that continues to add to the game’s allure aside from the lower RTP rate.

Main Features and Bonuses:

Book of Helios shines with its mythological features and bonuses that bring it to life and offer thrilling opportunities for significant wins.

1. Free Spins: To trigger the free spins feature, you’ll need to land three or more book of Helios symbols anywhere on the reels. This activates 10 free spins, during which a special expanding symbol is randomly selected. When this symbol appears during free spins, it expands to cover the entire reel, potentially leading to substantial wins. Free spins can also be re-triggered, providing even more chances to uncover mythical treasures.

2. Expanding Symbol: During the free spins feature, one symbol is randomly chosen to become the expanding symbol. This symbol has the power to expand and create more winning combinations when it appears on the reels. The anticipation of this expanding symbol adds excitement to every spin during free spins. The book symbols can offer even more, as they will always expand vertically and substitute if possible, as well as offer a 5x win multiplier!

3. Bonus Buy Feature: If you do not want to try and land a minimum of three Book symbols, you can pay to trigger the Free Spins feature. This is costly, though, as it will set you back 65.5x your bet.


With Book of Helios, I have been in the temple of Helios, and it is a game that has impressive graphics, unique functions and a hint of mythological splendour. This is done by symbols that help in creating a vivid and visionary environment.

A sparkling touch is added to it through the free spins feature which has an expanding symbol. The expansion phase of the chosen symbol during this free spin makes things more interesting as it is often accompanied by exciting wins.

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