Book of Ancient Ra icon

Book of Ancient Ra

Egyptian Mythology Slot with Expanding Symbols & Retriggerable Free Spins

Unlock 10 Free Spins with Sacred Expanding Symbols on Your First Session

Download Book of Ancient Ra
4.6
Player Rating
500K+
Downloads
10
Paylines
Free Spins Bonus Active - Download Within 24 Hours

Claim Your Sacred Offering

Choose your path to the ancient treasures - exclusive bonuses for new players

No Deposit
20 Free Spins
PHARAOH20
  • Wagering requirement: x30
  • Valid on Book of Ancient Ra only
  • Expires in 7 days
Claim Spins
Free Spins Pack
50 Spins on Registration
SPHINX50
  • Valid on Ancient Ra slot series
  • Wagering requirement: x30
  • Valid for 14 days
Get Spins

Wagering requirements apply to all bonuses. Minimum deposit required for welcome match. New players only. Bonuses valid for limited time. Full terms available after registration.

Behind the Reels

Book of Ancient Ra operates on a proven 5-reel, 3-row architecture with 10 adjustable paylines. The core engine uses medium volatility mathematics with an RTP of 96.1%, delivering balanced payout frequency across base game and bonus rounds. Symbol expansion mechanics trigger when scatter symbols activate free spins mode.

The scatter system requires minimum 3 Book symbols appearing anywhere on reels to unlock 10 free spins with a randomly selected expanding symbol. During free spins, the chosen symbol expands to cover entire reels when sufficient positions are filled, creating multi-line wins without requiring adjacent positioning. Retrigger mechanics allow additional free spins when 3+ scatters appear during the bonus round.

Payline structure follows left-to-right evaluation with configurable bet levels from 0.01 to 5.00 per line. Maximum win potential reaches 5,000x line bet when five Ra symbols align on an active payline. The gamble feature offers double-or-nothing on wins below threshold through card color prediction with 50/50 probability distribution.

Verified Specifications

Version 2.4.1
Size 47 MB
Developer MysticPlay Studios
Age Rating 18+
Requirements Android 6.0+
Language English
Last Updated 24.04.2026
Release Date April 2026

Your Toolkit

Expanding Symbol Mechanics

One symbol selected randomly at free spins start expands to fill entire reel positions when appearing in sufficient quantity. Expanded symbols pay on any position across the payline, not requiring left-to-right adjacency. This mechanic multiplies win potential during the 10 free spins bonus round.

Retriggerable Free Spins

Landing 3 or more Book scatter symbols during active free spins awards an additional 10 spins using the same expanding symbol. No limit exists on retrigger frequency within a single bonus session, allowing extended play sequences when scatter symbols appear consistently.

Adjustable Payline System

Configure active paylines from 1 to 10 with independent bet level control per line. Total bet calculation multiplies active lines by selected line bet, offering stake flexibility from micro-bets to maximum exposure across all 10 lines simultaneously.

Gamble Feature

Wins below the gamble threshold unlock optional double-or-nothing rounds. Predict red or black card color with 50% probability to double the win amount. Incorrect prediction forfeits the entire win. Gamble chain continues until maximum limit or player collection.

Scatter Trigger System

Book symbols function as scatter pays, awarding wins based on total count appearing anywhere on the 5 reels. Three Books trigger free spins mode while also paying 2x total bet. Four or five Books increase scatter wins to 20x and 200x total bet respectively before entering bonus rounds.

Autoplay Configuration

Set automatic spin sequences from 10 to 100 rounds with customizable stop conditions. Define loss limits, single win thresholds, and free spins triggers to halt autoplay. Speed settings adjust reel spin duration and result display timing for faster session progression.

Game Systems

Reel Mechanics

  • 5 independent reels with 3 visible symbol rows create 15 total positions per spin
  • 10 fixed payline patterns evaluate left-to-right across reel positions for winning combinations
  • Symbol weighting determines appearance frequency with premium symbols at lower probability distribution
  • Reel spin duration averages 2.5 seconds with configurable turbo mode reducing to 1.2 seconds

Bonus Round Logic

  • Free spins mode activates when 3+ Book scatters appear anywhere on reels during base game
  • Expanding symbol selected randomly before first free spin from all regular symbols excluding scatters
  • Chosen symbol expands vertically to cover entire reel when 2+ instances appear after spin completes
  • Retrigger adds 10 additional spins maintaining the same expanding symbol throughout extended session

The Temple Awaits Your Arrival

Free download on Android 6.0+. No registration required to install. Full game ready in under 60 seconds.

Download for Android Now

Age 18+ required. Contains simulated gambling. Game includes optional in-app purchases. 47 MB download size.