Game ThemeBook |
ProviderPlaytech |
VolatilityHigh |
RTP96.63% |
Max Multiplier |
Min Bet0.10 CHF |
Max Bet20.00 CHF |
Book of Kings follows the grand tradition of Egyptian-themed video slots, combining a proven “Book Of” mechanic with a clear visual identity. Playtech offers here a compact and readable format based on 5 reels and 10 paylines, where a single pivot symbol — the Book — orchestrates the core of the action. This Book with a dual role (Wild and Scatter) structures the entire progression, from forming combinations to accessing free spins, with a notable variation: Books marked with a serpent that activate a x3 multiplier during the bonus feature.
The universe immediately immerses players in the heart of dunes and temples, with an explorer heroine at the center of the visual narrative. The atmosphere evokes archaeological tales and reputedly cursed burial chambers: a classic aesthetic of the genre, supported by emblematic symbols — pharaoh, Eye of Ra, and royal iconography. The setting is deliberately clean, highlighting the main mechanic: expanding symbols during the Free Spins. Just before the free spins counter starts, the Book opens and randomly selects an Expanding Symbol for the entire feature. This unique choice can turn a simple appearance into a full-screen spectacle when it expands across all reels.
The payout structure follows the standard logic of the genre: alignments of “royal” symbols (10–A) form the base of the main game, while thematic symbols (Eye of Ra, winged figure, pharaoh mask, explorer) carry the highest relative payouts. Another key feature enhances the bonus: when the symbol selected for expansion covers the entire grid during the Free Spins, values can skyrocket. In particular, the presence of the serpent on one or more Books triggers a x3 multiplier on all bonus wins.
Finally, book of kings explicitly fits into the “Book Of” lineage, taking on all the hallmarks that made this family of games successful: a Book combining Wild and Scatter roles, 10 Free Spins at the heart of the experience, and a symbol that expands to try to fill the grid. Within this classic framework, the serpent variant is the distinctive touch that energizes the feature and gives the main mechanic extra intensity. The goal is clear: focus attention on the moment everything aligns, with a maximum potential of 15,000x the bet when the most rewarding icon expands across all five reels and the multiplier is active.
The game adopts the most emblematic Egyptian imagery: dunes, temples, and pyramidal silhouettes frame the reels. The color palette favors golds, beiges, and browns, with touches of bright colors on thematic symbols. The interface leverages this simplicity to highlight the Book, the central element on screen and in gameplay. The result is a classic, readable visual style, organized around familiar archaeological markers.
The graphics display sharp and polished quality. The relief of the symbols, their borders, and hieroglyphic patterns provide a clean finish. Visually, progression revolves around the appearances of the Book, which set the rhythm of the session. The explorer occupies a prominent place and acts as a true “value benchmark,” especially during Free Spins when the Expanding Symbol appears across multiple reels. Overall, the game delivers a calibrated exploration atmosphere, without unnecessary effects.
The symbol hierarchy is clear and reflects the “Book Of” logic. The elements below structure the relative payouts and the core features:
A useful reference to gauge the impact of expansions during Free Spins: when the Expanding Symbol covers all 5 reels, the displayed values can reach:
These levels clearly show how the expansion mechanic, combined with the x3 multiplier from the serpent, can rebalance the session during the bonus feature.
The soundtrack aligns with traditional Egyptian style, using “authentic” sound textures in the base game. Winning sequences are accompanied by lighter jingles, reminiscent of a fairground aesthetic, which modulate the audio emphasis during streaks. Standard effects — reel spins, alignment confirmations, bonus triggers — support the clarity of key moments. The result favors clarity and auditory tracking of significant events, especially when the Book opens and the Expanding Symbol is selected.
Book of Kings revolves around a few powerful and identifiable mechanics: 5 reels and 10 paylines form the base, the Book combines Wild and Scatter, the free spins (10) concentrate the game’s volatility, and the selection of an Expanding Symbol acts as an accelerator. The “serpent” variant applies a x3 multiplier to all bonus wins. The feature is complemented by the ability to re-trigger Free Spins with new Books appearing during the bonus.
The 5-reel, 10-payline grid allows simple reading of connections. This classic structure enhances the clarity of symbol expansions, especially when the chosen Expanding Symbol covers an entire reel.
The Book acts as a Wild to complete lines and optimize combinations. It also functions as a Scatter, which bypasses line restrictions when triggering the bonus feature. The Book has its own paytable, providing standalone value even outside the bonus.
Landing 3 or more Books triggers 10 Free Spins. At the start of the feature, an iconic animation of the Book opening randomly selects the Expanding Symbol for the duration of the Free Spins. This sequence is the keystone of the experience.
The Expanding Symbol chosen before the first bonus spin expands vertically to cover the reel it lands on, regardless of paylines. This quickly transforms the reel layout, especially if the selected symbol is premium (Pharaoh or Explorer). The payout levels listed above illustrate the mass effect when expansions occur simultaneously on multiple reels.
If one or more triggering Books display a serpent, all Free Spin wins receive a x3 multiplier. This does not change the feature duration or the Expanding Symbol selection, but it boosts each win calculation throughout the sequence.
During the feature, new Books can appear to re-trigger the Free Spin counter. This extends the window during which the Expanding Symbol and, if applicable, the x3 multiplier remain active.
The maximum potential reaches 15,000x the bet, a scenario associated with the expansion of the highest-value icon (the Explorer) across all 5 reels with the x3 multiplier active. This highlights the importance of the symbol selected by the Book during the bonus.
| Feature | Details | Key Effect |
|---|---|---|
| Grid and paylines | 5 reels and 10 paylines | Classic structure that favors clarity of connections |
| Book (Wild) | Substitutes all regular symbols | Completes and extends winning lines |
| Book (Scatter) | Triggers 10 Free Spins without line constraints | Direct access to the bonus feature |
| Expanding Symbol | Randomly selected by the Book before Free Spins | Vertical expansion on the reel, potentially massive wins |
| x3 Multiplier | Active if one or more triggering Books display a serpent | Triple all wins during Free Spins |
| Free Spin Re-trigger | New Books in bonus: re-trigger possible | Extends the window for the Expanding Symbol |
| Maximum potential | Up to 15,000x the bet | Achieved when the Explorer expands across 5 reels with x3 active |
| Symbol distribution |
| Thresholds for full-screen expansion in bonus |
Book of Kings condenses the DNA of “Book Of” slots into a coherent set focused on the essentials. The combination of Wild/Scatter in a single Book, access to 10 Free Spins, and the presence of an Expanding Symbol form the backbone of the game. The variation introduced by the serpent — and thus the x3 multiplier applied to all bonus wins — defines the game’s unique identity, amplifying the impact of each alignment during the feature. Within this framework, the role of premium symbols, especially the Explorer, becomes central: a high-ranking Expanding Symbol can transform the Free Spins.
From an audiovisual perspective, the iconography draws on classic Ancient Egypt motifs: pyramids, masks, the sacred eye, and golden reliefs. The soundtrack favors a traditional tone during the base game, while lighter jingles play during winning sequences. The overall design prioritizes clarity and emphasizes key moments such as the appearance of the Books, the selection of the Expanding Symbol, and simultaneous expansions.
Mechanically, its similarity to other “Book Of” titles is deliberate. Book of Kings, for instance, provides an experience very close to Book of Dead in the way Free Spins are triggered and animated: same structure, same focus on the selection of the symbol and full-screen expansions. The key difference lies in the x3 multiplier linked to the Serpent Books, absent in many other titles; this lever increases the Free Spins’ potential at each win calculation.
Two factors clearly distinguish this title from similar alternatives:
Compared to other titles built on the same framework, Book of Kings stands out less for additional features and more for the quality of execution of its core mechanics and its handling of the multiplier. As such, it is a solid iteration of the “Book Of” model, with clear technical framing and immediate readability of stakes.
For close references, fans of the “Book Of” genre will recognize familiar markers in titles using the same pattern — Book combining Wild/Scatter, 10 Free Spins, randomly selected Expanding Symbol — while offering their own variations. Within this constellation, Book of Kings (Playtech) occupies a clear position: fidelity to the formula, emphasis on the serpent and its x3 multiplier, and maximum potential of 15,000x when all parameters align.
In summary, this production is a distillation of the “Book Of” grammar: 5 reels, 10 paylines, dual-role Book, 10 Free Spins, Expanding Symbol, optional x3 via the serpent, and classic Egyptian theming. The balance between overall simplicity and bonus peak potential gives Book of Kings exceptional readability, while maintaining a distinct signature through the multiplier treatment.
What is the grid and paylines structure?
5 reels and 10 paylines, for a simple and classic readability of connections.
How are Free Spins triggered?
With 3 or more Books in view: 10 Free Spins are awarded, and they can be retriggered during the bonus.
What is the role of the Book symbol?
It acts both as Wild and Scatter: it substitutes symbols and triggers Free Spins. The Serpent version activates a x3 multiplier in the bonus.
How does the Expanding Symbol work?
Selected before the Free Spins, it expands vertically on its reel and pays without paylines, potentially creating full-screen symbols.
What is the maximum possible win?
Up to 15,000x the bet, if the highest paying symbol expands over 5 reels with the x3 multiplier active.
OL-AGG-20200922-092
