Book of Helios

Olivia Wood, a brave explorer, has stepped inside the hidden temple of Helios, what awaits her there is a mysterious book with the power to invoke the Greek god of Sun. In popular culture, Helios is also known as Hyperion and is often confused with a fictional superhero in Marvel comics. While Greek mythology is full of stories centering around Zeus, Poseidon, Prometheus and Hercules, the Sun god also enjoys a considerable reputation amongst the Greek pantheon.

BetSoft’s latest slot, Book of Helios, is based on this mighty Greek god and the adventures of a mortal, Olivia Wood. Will the solar deity bestow her luck with his grace, or will the explorer face utter desolation at the hand of this powerful god? Let us find out.

Book of Helios Slot Review

Where Can I Play Book of Helios Slot?


BetSoft released Book of Helios on 30th June 2022. Although the game has only 10 paylines, promising payouts and features ensures that it holds several lucrative prizes. The slot’s minimum betting amount is 0.20 coins, while the maximum bet stands at 20 coins per spin. The wagering limits are deliberately kept within a feasible range so that most players can participate in this adventure.

The slot looks most ambitious in its payouts category. With such affordable betting margins, the game offers a maximum potential win of 20,164x the stake. Book of Helios is only the second ‘Book of’ slot from the game provider: The first being Book of Darkness. However, if you seek more variety, you’ll get plenty of options in BetSoft’s gaming portfolio, like Triple Juicy Drops and Alkemor’s Elements.


The slot reveals a magnificent albeit somewhat terrifying sculpture of Helios on his chariot. Helios’ gleaming red eyes reveal both his identity and portray his fearful wrath, which he is about to unleash on his enemies. The reels are placed between the two horses drawing the carriage. Like the sculpture, the transparent reels are also framed in stone and provide a view of the sun symbol emblazoned on Helios’ chariot.

Looking at the slot’s paytable in ascending order reveals A to 10 card royals offering 5x to 8x the bet amount for a winning combination of five or more identical symbols. Then we move to the high-paying symbols constituting a whip, bow and arrow, Olivia Wood, and Helios himself. While landing five Olivia symbols pay 15x the stake, Helios is the game’s most lucrative symbol offering 20x the bet amount for landing a five-of-a-kind win.

But the most special game symbol is the bulky Book of Helios. Although this symbol doesn’t offer any payouts it acts as both the scatter and wild symbol. The book appears only on reels 2, 3, and 4 as a scatter symbol which also carries the power of wilds to substitute all other symbols.


Since Book of Helios carries the max winning potential of over 20,000x the stake, it doesn’t surprise that the slot has a high variance maths model. High variance or volatility implies that you shouldn’t expect frequent wins in the game. Wins might take a while before appearing. But highly volatile games also offer the best chances of winning bigger payouts.

Despite being strong on numbers, one area where Book of Helios might let down players a bit is its RTP. The slot’s theoretical return to player is 95.58% which fails to breach the average benchmark of 96% reserved for online slots. Although the game’s RTP is not too bad, we expected more from Betsoft in this segment.

But if there is one thing compensating for the slot’s low RTP is the game’s maximum win of 20,164x the stake.

Gameplay and Features

Free Spins

Landing 3 book scatter symbols in a spin triggers the bonus feature with 10 free spins. Before the feature starts a paying symbol is randomly selected and transformed into a special expanding symbol. If the selected symbol appears on 2+ or 3+ reels with the possibility of forming a win, each special symbol present on these reels will expand vertically to cover the entire reel. Although the special symbol pays like a regular symbol, it can create wins even when not in adjacent order.

Also, if a book symbol appears during the free spins feature, it expands to cover an entire reel, thereby revealing a win multiplier of 1x to 5x. The book symbol also substitutes special symbols but not without considering the win multiplier.

Buy Feature

The Buy Feature directly provides free spins without playing the base game. To activate this feature, you need to pay 65.5x the bet amount whereupon 10 free spins will be handed out to you.

Book of Helios Payouts

The winning procedure in the Book of Helios slot machine is pretty simple: land 3 or more identical symbols on any of the 10 paylines to form a winning combination. Symbols must line up from left to right, starting from the leftmost reel.

Payouts depend on the winning symbol rank and the number of symbols involved in the winning formation. But if all goes in your best interests, you can win up to 20,164x the bet amount from the game.


Book of Helios complements easy gameplay with an excellent game design. The slot delivers solid performance from all aspects, except its RTP. Even the game’s low-paying card symbols offer much better payouts than many high-value symbols from other slots. But where the slot shines the most is its bonus feature. The game delivers excellent payout potential without cluttering the gameplay with too many bonus features.

While it is too early to make any claims about the game, Book of Helios’ simplicity and stunning payouts will surely lure many players at least once.

Best Casinos to Play Book of Helios

Book of Helios is widely available in many UK casino sites. However, not every platform leverages the same advantages. There are some online casinos where you can win exciting rewards and gather a more satisfactory gaming experience. Two such online platforms where you can play Betsoft’s Book of Helios are: Voodoo Dreams and Betiton Casino.

If you love playing ‘Book of’ slots, then Voodoo Dreams would be a perfect platform for you. The casino offers a 100% welcome bonus of up to £50 and 50 free spins on the popular slot, Book of Dead. Furthermore, what makes this casino an excellent choice is its low wagering requirement of only 30 times, after which you can transfer your winnings and bonus amount to your bank account or e-wallet.

Betiton Casino is another excellent venue where you get tempting welcome bonuses. Betiton rewards new players with a 100% match deposit bonus of up to £80, whereas the minimum betting requirement is only £10. Apart from Betsoft, the online casino also hosts slots from Microgaming, NetEnt, Pragmatic Play, Play’n Go, Big Time Gaming and several other reputed brands.

Book of Helios Profile

Slot Varience - High



Release Date: 2022
Studio: Betsoft
Game Type: Video Slots
Reels: 5
Paylines: 10
Stake Range: 0.20 - 20

Jackpot - 20,164x


Book of Helios logo

Free Spins, Expanding Symbols, Buy Feature

4.5 Play now

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