7 Best-Rated "Book Of" Slots to Try (Part 3)

The “Book Of” slot style has been around for years, built on a setup most players instantly recognize: a book symbol that triggers free spins and expanding symbols that can take over the reels. The format was originally popularized by Book of Ra and later brought to a wider online audience with titles like Book of Dead, which helped cement it as one of the most familiar slot styles today.

In Part 1 and Part 2, we went through seven classic picks and newer releases each, all built around that formula.

Now, this third part wraps things up with one more batch of the next seven best-rated games to try, adding a few more well-known titles and rounding out the full “Book Of” collection.

Be assured, they are absolutely no less interesting and exciting than the first fourteen titles. What’s more, we finally get even a couple of games with six reels, a fresh twist on the classic book mechanic.

You will also be pleasantly surprised by a diverse choice of themes and really captivating stories, supported by crisp visuals and matching soundtracks for an incredibly immersive experience.

Without much further ado, here is another bunch of the best-rated “Book of” slots that are worth spinning.

Sheer Thrill of High Volatility

Nearly all games listed below are distinguished by high volatility, which is actually no wonder, given that high-volatility slots are generally very popular among online casino players.

When speaking about one-armed bandits, the term volatility is applied to describe how often a particular game delivers payouts and how big (in relation to the bet) they can be.

High volatility slots pay less often on average, but the chance to hit big wins in a short time span is higher. With low volatility slots, the situation is opposite – payouts are more frequent, but smaller, not so impressive. Games built to be medium volatile offer something in between, trying to strike a balance in terms of the frequency and size of payouts.

No prizes for guessing, many slot buffs give preference to high volatility because they love its ability to generate considerable winnings. Of course, small wins are also nice and exciting; however, a rare player is satisfied with them. Typically, the winning potential of slots is packed in their bonus features; therefore, triggering free spins or another second-screen event is already a joy in itself.

Now, let’s take a closer look at the third seven “Book of” online slots that are so popular among players:

#15 Book of Secrets 6

Book of Secrets 6 is a 6-reel online slot designed by SYNOT Games, a leading provider of casino games licensed and certified across multiple jurisdictions in Europe and South America.

Players are set for an exciting journey through the old burial site of the late Pharaoh in the company of the lovely, brave archaeologist guide. She brings them exactly to the depths of the mystery where all the riches lie – the Bonus pyramid.

It is a high volatility game, which also has a high hit rate and a considerable maximum win of 10,000x bet or $110,000 in a single round. The RTP of this slot is very flexible and can range from 88.14% to 98.12%, but typically, at the casinos featured on LCB, it is just a bit above 96%.

This online slot offers wilds and free spins with a specially chosen symbol for more success. It is also enhanced with a gamble option that lets players gamble any win not exceeding $55,000 for a chance to double it. The feature is card-based, and players have to guess the color of the next revealed card. They can also choose to gamble just half of their winnings.

#16 Book of Cats

Released in 2020, Book of Cats is a captivating slot from BGaming, which was among the first software developers to incorporate Provably Fair technology into its games.

Another slot with 6 reels and 10 pay lines, it transports players to ancient Egypt, where they can be part of the greatest festival held in honor of Bastet, the goddess of cats, home, fertility, and protection.

Boosted by a very high volatility, this title offers an RTP of 94% and a modest betting range that starts at $0.1 and goes up to $10. As expected, the magical Golden Book takes center stage, being both a wild that substitutes for all other icons and a scatter that triggers 10 free spins with an expanding symbol.

By turning the pages of the magical book, Bastet is not only sharing her wisdom but also the riches of up to $7,500. The game also offers a Buy Bonus option and a classic gamble feature.

#17 Book of Eskimo

Book of Eskimo is an homage to the popular “Book of” series from Expanse Studios, a relatively young supplier of online casino content based in Malta. Taking players to the snowiest parts of the globe, it introduces them to the icy realm of bonuses, offering a decent RTP of 96.11%.

Even though this slot has a standard playfield with five reels, three rows, and 10 pay lines, it does stand out from the competition thanks to an interesting re-spin feature with extended jokers that is in charge of starting the party.

The fun continues with free spins, where up to two regular symbols are converted into jokers, contributing to better payout potentials. For risk lovers, there is a gambling feature, in which a simple selection of the card leads to twice as good payouts.

A wild and a scatter in this slot are two different symbols; the latter pays but does not appear during free spins. Hitting 3 or more scatters anywhere on the screen will trigger 7 free spins with 1 or 2 random symbols converted into special wilds for the duration of the feature.

Chained in Ice Re-spins are activated by 2 or more wilds appearing anywhere on the reels. All wilds will expand to fill the respective reels and will also hold and move down one position at the beginning of each re-spin.

#18 Book of Time

Not for nothing is Hacksaw Gaming one of the most beloved studios among slot streamers. Their games are not only fun but also capable of delivering impressive payouts.

Book of Time is not an exception, bringing up to $25,000 or 10,000x bet to all those who want to see Canny the Can returning in a 5x4 slot with both a classic book mechanic bonus and a spreading wild multiplier feature.

Once the bonus is triggered by landing 3, 4, or 5 book scatters in the base game, one or more symbols are selected as the special symbol for the duration of the feature. The math goes like that: 3 books bring 10 spins with 1 symbol, 4 books 15 spins with 2 symbols, and 5 books 20 spins with 3 symbols.

And that’s not all, because if the special symbols land anywhere on at least 3 reels, they will spread to cover the respective reels to make even more winning combinations.

It is a mid-high volatility slot with a pleasant 96.13% payback and a pretty extensive betting range that will suit low-rollers and high-pullers alike. With the minimum bet of just $0.1, this game is very affordable, even for players with small bankrolls. The maximum bet is $100, plus, there are plenty of options in between the two extremes.

#19 Book of the Sphinx

Released by legendary IGT back in 2019, Book of the Sphinx is a 5-reel online slot that has 20 fixed pay lines and two lucrative bonus features: Eye of Ra with expanding symbols and free spins.

The book is a wild, substituting for all other symbols except the Eye of Ra icon and a special symbol selected during the free spins feature. Books are also in charge of triggering 10, 15, or 30 free spins when three or more appear anywhere on the reels.

At the start of the feature, one of the symbols (excluding the book) is randomly selected as the special symbol and, when three or more of them appear on any position, they will expand to form as many winning combinations on active pay lines as possible.

The cool thing is that winning combinations do not need to be aligned to the left, and the symbols do not need to be positioned on consecutive reels. Plus, free spins can be retriggered multiple times, up to a maximum of 250 per bonus.

As for the Eye of Ra feature, it is activated by three or more same-named symbols appearing anywhere on the screen. The Eye of Ra symbols are then replaced by a randomly-selected symbol that will expand on all reels on which it appears to pay for 3, 4, or 5 of a kind on any active payline regardless of reel position.

#20 Book of Fortune

Book of Fortune was released by Amatic in 2014, so it is a kind of old-school slot when it comes to design. The game, however, still enjoys popularity among players because it offers the much-loved free spins bonus with expanding symbols.

The book symbol here also plays two roles – of a wild and a scatter. It substitutes for all other icons available in the pay table and pays at any position when 3, 4, or 5 appear on the reels. Naturally, with at least three books on the screen, you will also get 10 free spins that can be re-triggered the same way.

At the beginning of the feature, the expanding symbol is selected at random to pay in all active lines, no matter whether the symbols that make winning combinations are consecutive or not.

It is a high volatility slot with a wide range of stakes that starts at $0.1, and an RTP above 95%.

#21 John Hunter and the Book of Tut

In 2020, Pragmatic Play replenished its popular John Hunter series with John Hunter and the Book of Tut, a high volatility slot that transports players to the ruins of Ancient Egypt as they search for King Tut’s tomb on the banks of the River Nile.

The 3×5 game is packed with extras, while the highlight bonus is a well-familiar free spins feature enhanced with expanding symbols for more staggering wins of up to $50,000. Traditionally, the book is both a wild and a scatter; hitting five wild symbols pays 200x bet.

Landing three or more books on the reels also brings 10 free spins with the aforementioned special expanding symbol. The bonus can be re-triggered an unlimited number of times. In certain jurisdictions, this slot also offers a Buy Bonus feature, letting players purchase direct access to free spins for 100x bet. The RTP of this game is 96.50%.