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Book of Helios Review
Here's a look at Book of Helios, an addition to the popular “Book of” style of slot games, with a standard payline structure. The game unfolds across 5 reels, 3 rows and 10 fixed paylines.
The theme revolves around a female adventurer seeking riches in a temple dedicated to Helios. The visuals are well above average, showcasing well-designed symbols, smooth animations, and engaging visual effects.
Book of Helios features high volatility, so anticipate some fluctuations. However, the hit frequency is 35.03%, offering wins roughly every three spins. The betting range caters primarily to players who prefer smaller stakes. The minimum bet is £0.10, while the maximum is £10. Some higher-stakes players might find this limiting. Lastly, the theoretical RTP is 95.58%, slightly below the standard.
Book of Helios Slot Features
There are 9 standard symbols in Book of Helios, with 5 lower-value and 4 higher-value symbols. The lower-value symbols are card ranks from Tens to Aces, with Aces paying up to 8x your bet for five matching symbols. The higher-value symbols include whips, crossbows, the adventurer, and Helios. Helios is the most valuable, awarding a 20x payout for a five-of-a-kind combination.
As a “Book of” slot, Book of Helios includes a Book symbol. This symbol acts as both the Wild and the Scatter. It can complete winning combinations and trigger the Free Spins feature.
To activate the Free Spins feature, you need 3 Book symbols in a single spin. This grants 10 free spins and selects one random standard symbol to act as an Expanding symbol for the duration of the feature. Note that retriggers are not available.
Expanding symbols can expand to cover an entire reel and pay out even when not fully adjacent. The game introduces Book symbols that can land during free spins. These always expand vertically and substitute for the current Expanding symbol. Moreover, they reveal a win multiplier of up to 5x that will increase your wins!
Players can instantly access the Free Spins feature by using the Buy Feature option. This is available at any time and costs 65.5x your bet.
Review Summary
Book of Helios is a solid “Book of” slot that enhances the classic gameplay with win multipliers. This addition enables a larger potential jackpot, allowing you to win over 20,000x your bet with some luck.
| Pros | Cons |
|---|---|
| High production values | Slightly disappointing 95.58% RTP |
| Adds win multipliers to the “Book of” formula |
