Book of Scarab

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Wagering requirement: x30
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Inside the Ancient Temple Engine

Book of Scarab operates on a 5-reel, 3-row slot engine with 10 fixed paylines that activate on every spin. The core mechanic revolves around the sacred scarab symbol serving as both wild and scatter, triggering the free spins bonus round when three or more land anywhere on the reels. During base gameplay, the expanding symbol feature randomly selects one symbol per spin to expand across entire reels when forming winning combinations, multiplying payout potential dramatically.

The free spins bonus round awards 10 initial spins with a special expanding symbol chosen at random before the feature begins. This selected symbol expands to cover all positions on its reel whenever it appears during free spins, creating opportunities for massive multi-reel wins. The scarab scatter can retrigger the feature, awarding an additional 10 spins with the same expanding symbol, allowing for extended bonus sessions with cumulative win potential reaching up to 5,000x the initial bet.

The mathematical model implements medium-high volatility with an RTP of 96.21%, balancing frequent base game wins with substantial bonus round payouts. Symbol values range from low-paying hieroglyphic card symbols (10, J, Q, K, A) to high-paying thematic icons including the ankh, Eye of Horus, and the golden pharaoh mask as the premium symbol. The scarab wild substitutes for all symbols and appears on reels 2, 3, and 4 during base play, expanding its presence during the triggered bonus rounds.

Verified Specifications

Version 2.8.1

Size 87 MB

Developer Pyramid Gaming Studios

Age Rating 18+

Platform Android 6.0+

Language English

Last Updated 15.08.2026

Release Date August 2026

Sacred Reel Arsenal

Expanding Scarab Wilds

The sacred scarab symbol acts as a wild substitute covering entire reels when part of winning combinations. During free spins, one randomly selected symbol gains permanent expansion capability, transforming every appearance into a full-reel overlay that dramatically increases multi-line win frequency and maximum payout potential per spin.

10-Spin Bonus Temple

Landing three or more scarab scatter symbols anywhere on the reels triggers the free spins bonus round, awarding 10 spins with a pre-selected expanding symbol. The feature can retrigger indefinitely during active free spins, adding 10 additional spins each time three scatters reappear, creating extended bonus sessions with cumulative win escalation.

Mystery Symbol Selection

Before each free spins round begins, the game randomly selects one symbol from the paytable to serve as the special expanding icon for the entire bonus duration. This mystery selection includes all symbols from low-value hieroglyphs to the premium pharaoh mask, with higher-value selections creating significantly larger win potential throughout the feature.

5,000x Max Win Ceiling

The maximum win potential reaches 5,000 times the initial bet amount, achievable through optimal expanding symbol combinations during extended free spin sessions. This ceiling represents full-screen coverage of the highest-paying pharaoh mask symbol across all five reels with maximum bet multipliers applied, creating the theoretical peak payout within the game's mathematical model.

Adjustable Bet Range

Bet configuration spans from 0.10 to 100.00 credits per spin across all 10 fixed paylines, accommodating both conservative bankroll management and high-roller strategies. The bet adjuster allows precise incremental control, with the total stake displayed prominently before each spin confirmation, ensuring complete transparency in wagering amounts.

Auto-Spin Expedition Mode

Auto-spin functionality enables automated gameplay for 10, 25, 50, or 100 consecutive spins at the selected bet level, with configurable loss limits and single-win thresholds that halt the sequence when triggered. Advanced settings include stop-on-bonus-trigger and stop-on-win-exceeds parameters for disciplined session management during extended play periods.

Reel Mechanics Decoded

Core Spin Systems

5x3 reel grid with 10 fixed paylines evaluating left-to-right winning combinations on every spin
Scarab wild symbol appears on reels 2, 3, and 4 during base play, substituting for all symbols except itself as scatter
Winning combinations require minimum three matching symbols on adjacent reels starting from leftmost position
Random expanding symbol mechanic activates on any base game spin, selecting one symbol to expand when forming wins

Bonus Trigger Logic

Three or more scarab scatters landing simultaneously anywhere on visible reels trigger 10 free spins with pre-selected expanding symbol
Expanding symbol chosen randomly before free spins begin, covering entire reel on every appearance during bonus round
Retrigger mechanism awards additional 10 spins when three or more scatters appear during active free spins session
Free spins play at the same bet level as the triggering base game spin, with all 10 paylines remaining active throughout

About the Developer

Developer: Pyramid Gaming Studios | Version: 2.8.1 | Platform: Android 6.0 and above

Released: August 2026 | Category: Casino Slots | License: Regulated iGaming

Pyramid Gaming Studios specializes in Egyptian-themed slot mechanics with mathematically balanced volatility models. Book of Scarab represents their flagship title combining classic expanding symbol gameplay with modern mobile optimization, achieving over 500,000 downloads since launch with consistent 4.6-star player ratings across Android distribution platforms.