Hailing from the extremely consistent Spinberry development studio, the Book of Deities slot first made its way onto casino platforms in March 2025. As is the case with a wide array of online casino slots in today's iGaming world, this brandishes an Egyptian-inspired theme inspired by this once prominent ancient civilisation. Besides the era-accurate imagery and symbols depicting mythical gods, the Book of Deities slot also features several nuances, including expanding symbols and respins.

Getting into the general design of the Book of Deities slot, this game utilises a 5x3 layout that many genre contemporaries also employ. The thick, golden frame features 10 paylines, its corners adorned with red, shiny jewels. To the right of the screen, the pharaoh surrounded, glowing Book of Deities logo can be seen, and beneath this, the luminous green spin button is located.

Sitting on either side of the main Book of Deities playgrid are two burning basins, their flickering flames illuminating the interior of an ancient temple. As goes for Eye of Horus Rise of Egypt, and the Book of Dead slot, this forgotten structure is lined by thick stone pillars that have many intricate hieroglyphics across them. A cracked stone floor complements this setting, and an opening in the roof allows moonlight to creep into this tomb as well.

Despite the era of the Egyptians coming many millennia before the first live casino games, card royals have still found a way to be added to the paytable of this Book of Deities slot. These are backed by stone blocks, though, in order to match the style of the temple they land within. As for the rest of the symbols, this depicts many pharaohs and mythical gods of this civilisation, all of which sit within their own separate gold frames.

Lower Value Symbols:

Green Queen Stone Block (Q)

Red King Stone Block (K)

Yellow Ace Stone Block (A)

Medium Value Symbols:

Ma'at

Anubis

Horus

Montu

Higher Value Symbols:

Male Pharaoh

Female Pharaoh

The golden Book of Deities itself is one of the bonus symbols that Spinberry has added, with this having two separate roles in play, just like the book found in Legacy of Dead. Both of these nuanced abilities could bring their own unique layers to the gameplay if landed.

The first ability of the golden Book of Deities is that it serves as the main wild symbol in play. Should this be landed across any of the 15 symbol segments that make up the playgrid, this could take the place of all base game symbols in the Book of Deities slot. This is due to it possessing substituting qualities, a characteristic that is constant across retro, Megaways, and online jackpot slots, which has proven very popular. When it lands in a position to do so, the Book of Deities wild symbol can make or increase matching base game symbol combinations in play

However, as we mentioned earlier, this golden book has more than one role. In fact, this is also the scatter symbol in the Book of Deities slot. By landing between 3 and 5 of these book scatters in view at once, this could trigger 10 free spins. Before any of the bonus round gameplay begins, though, one of the book scatters will actually open and turn to a random page. The page in question will display one of the base game symbols at random. If this same selected symbol appears on the playgrid during the 10 free spins, this will actually expand and fill a column 3-rows high. This modifier is not only found in the Book of Deities slot, but also appears in similarly named titles, such as Book of Atem.

When moving onto the user experience of the Book of Deities slot, Spinberry have ensured that the Egyptian visuals and highly refined gameplay at hand are optimised for many device types. Whether users have a preference towards smartphones, laptops, or any other play methods in between, the quality provided stays the same. Just like most genre entrants at BoyleSports Games, this is something that can be attributed to the adaptive software that supports cross-device play across various screen sizes.

By incorporating some tried-and-tested game systems already popular in the Egyptian genre and combining them with graphically impressive visuals, the Book of Deities slot showcases Sprayberry's expertise. The dual-purpose book symbol is the main nuance worth making note of here, with this playing into the game's name rather well.

Games like Temple of Iris and Pyramid King are also popular Egyptian-themed releases, should you like the art style of this Book of Deities slot.

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