Slot Overview: Book of Thieves


In slots, where criminals are more commonly associated with gold, currency, and banks, the pairing of books and thieves is less common. This is not as far-fetched as it may sound, considering the extraordinary worth of some books. Here we have the ‘Codex Leicester’ by Leonardo da Vinci as an example. Bill Gates paid a cool $30.8 million in 1994 for this 72-page notebook including some of his thoughts, sketches, and observations on the natural world. Although the book may be accessed in part online, Mr. Gates has likely taken extensive precautions to prevent the actual copy from falling into the wrong hands. This tidbit of literary information ushers us into our review of Book of Thieves, an online slot game by developer Blue Guru Games with a literary, thievish spin on the traditional ‘book of’ style of online slot play.

Book of Thieves transports players to a bygone era of Robin Hood and the Sheriff of Nottingham, setting action in a medieval-style village at day’s end. The 5-reel, 3-row game grid is set against a backdrop of a timber and tiled organized town with moody sky overhead and warmth pouring out from open doors, lamps, and candles. Theft was a problem even back then, so this is as good a time as any to use to illustrate the point.

Book of Thieves may be played on any device and features betting possibilities between 10 pence and £/€200 per spin. Book of Thieves is a medium-volatile slot with two different RTPs (96.21% for single-spin betting and 96.19% for buying extra spins). There are 10 fixed paylines in this grid, with payouts ranging from 2-5 OAK for low payments to 3-5 OAK for highs.

Five of a kind wins from bronze coins, silver coins, gold coins, a dagger, or a cup pay anywhere from 5x to 15x the wager. Then, the premium symbols, which consist of 4 character symbols, pay 50-250 times the wager for a winning combination of 5 identical symbols. Finally, Book of Thieves contains a dedicated wild symbol and a scatter symbol represented by a book. The wild symbol may appear on any reel and is worth as much as the highest premium symbol, while also being able to replace any other pay symbol that isn’t an enlarged one.

Slot Features in “Book of Thieves”

Book of Thieves, like any other ‘book of’ slot, has special expanding symbols that might appear throughout the main game and the free spins bonus round. Keep an eye on the box on the outer structure’s roof above the center reel in the base game. The expanding symbol for the current spin is determined by the symbol that lands in this space. The selected symbol on the main reels will grow to fill the whole reel it is on, and any possible wins will be calculated. Bonus symbols pay on all lines regardless of where they land.

Bonus Turns

If you get three or more scatter symbols, you’ll receive 10 bonus spins. Up to three symbols can be chosen at random at the start of each free spin to become the growing special symbol. If a selected symbol expands to complete a winning payline, it does so regardless of its initial location. If you get three or more scatter symbols, you’ll get 10 more free games.

Spend Money on a Bonus

The free spins bonus round is unlocked with the bonus purchase. For 70 times the wager, players can purchase the feature, which theoretically returns 96.08%.

Book of Thieves: The Decided Slot

Following the debut of another crime-themed online slot, Leprechaun Heist, comes Book of Thieves. Although not a “book of” category, it included characters who committed questionable acts. Keeping with a criminal theme makes good financial sense as well, since role-playing games in which the player assumes a persona and engages in activities they would never consider in real life are extremely popular—just look at the continued success of the Grand Theft Auto series, which debuted in 1997.

We might be wrong, but we don’t think Book of Thieves will be the beginning of a successful series that will be going strong in the next several decades. However, it continues a long and successful trend of online slot games started by Book of Ra. Studio participation in this time-honored online slot tradition is now almost expected. Studios like Play’n GO have made a killing out of them, releasing dozens with slight tweaks or new features to tempt players. Book of Thieves also goes against the grain by including expanding symbols in both the regular and free spins gameplay. Both tools have been around for a while, but they haven’t been used to death. The medieval thief twist also adds to the story’s distinctiveness.

If the symbol value drop hadn’t been so extreme, Book of Thieves may have had more of an impact. To counteract the effects of having up to three expanding symbols at once during free spins, it’s easy to see why Blue Guru Games decided this was necessary. The maximum payout of 4,786 times the wager appears to have suffered as a result. Book of Thieves isn’t all that unusual from your standard ‘book of’ slot, but it lacks the emotional punch of top-tier elite ‘book’ slots due to pacing concerns and a lack of eye-catching aesthetic effects to celebrate things like symbols overflowing across reels.


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