Greentube

Book of Ra

Slots Video Slots Action & Adventure History Egypt Book Animals Sea Ancient

The original Egyptian archaeology entry in Greentube's Book of Ra series

SlotRanker Score

/ 99

05099

The SlotRanker Score is calculated from the visible data below. It is not affected by affiliate deals, and it cannot be bought.

How this score is built

RTP

92.13%

return to player

Volatility

High volatility

variance

Max win

5,000×

top multiplier

Min bet

$0.01

per spin

Reels

9 lines

Player rating

3.8 ★

10 votes

DEMO Play free, no signup

Greentube

Embed on your site

3.8 / 5

10 ratings

User ratings are shown separately from the Slot Score unless stated otherwise.

Five weighted signals shape the composite. Four context signals refine ties. See how we rate for the full methodology.

Payouts & RTP3/10

RTP 92.13% → 3.0/10

Volatility9/10

high → 9.0/10

Win Potential7.4/10

x5000.00 (5000×) → 7.4/10

Features7/10

11 features → 7.0/10

Game Mechanics4.2/10

f=11 r=5 p=9 → 4.2/10

Context signals (tie-breakers)

Layout6/10

5x3 → 6.0/10

Bet Flexibility8/10

0.01–18 (×1800) → 8.0/10

Provider Reputation5.5/10

provider avg 5.5 → 5.5/10

Popularity2.5/10

synthetic proxy → 2.5/10

Popularity blends real player search demand (~30 markets) with a catalogue-derived proxy; games without measurable search demand use the proxy alone. Not live play telemetry.

Cite this score

SlotRanker Score: 52 — Book of Ra by Greentube

https://slotranker.com/greentube/book-of-ra#score

How to cite

Slot Summary

Choosing whether to keep a win or send it into the Gamble feature is Book of Ra's sharpest optional decision. Greentube's 2005 original established the series through an Ancient Egypt archaeology premise, a Book motif, and a compact set of Free Spins, Expanding Symbols, Wild Symbol, and Scatter Symbol functions. Its presentation now reads as dated, yet the direct formula helps explain why sequels, revamps, and updates repeatedly returned to the same franchise.

How It Plays

A 5x3 layout distributes outcomes across 5 reels and 9 paylines, keeping the base game easy to read. Wild Symbol and Scatter Symbol functions add alternatives to ordinary line combinations.

After an eligible win, the Gamble option creates a separate choice: keep the result or risk it in the Double game. Because that decision is optional, it does not interrupt every base spin.

Theme & Atmosphere

Ancient Egypt and History give Book of Ra its central reference point. Ra, the Egyptian god named by the title, connects the game directly to its pharaoh, pyramid, and archaeology inspirations.

Action & Adventure comes through the search for a mysterious Book rather than a modern expedition narrative. The older presentation preserves the straightforward visual identity associated with the original release.

Action & Adventure History Egypt Book Animals Sea Ancient

Features & Win Potential

Expanding Symbols can occupy more of the 5x3 layout than standard symbols, while Wild Symbol and Scatter Symbol functions provide distinct ways for special outcomes to develop.

High volatility and a x5000.00 maximum place more weight on less frequent feature results. The optional Gamble adds another risk decision after qualifying wins have already landed.

High volatility Free Spins Scatter Symbol Wild Symbol 5 Reels Gamble Book Of...Additional Free Spins Expanding Symbols RTP range Risk/Gamble (Double) game

Bonus & Free Spins

Free Spins provide the dedicated bonus phase, and Additional Free Spins can extend its duration after play begins. Expanding Symbols supply the principal special-symbol feature associated with that phase.

Spec sheet

Book of Ra at a glance.

Identity

Slot nameBook of Ra

StudioGreentube

Released3/3/2005

Math

SlotRanker Score52

RTP92.13%

VolatilityHigh volatility

Max win5,000×

Bet range$0.01 – $18.00

Player rating3.8 / 5 · 10 votes

Format

Reels5

Paylines9

Layout5x3

Features

Themes

Expected average based on this slot's 92.13% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$0.31

Cost per session$0.31

Estimate only, for entertainment purposes — treat gambling as entertainment, not a way to make money, and set a budget you can afford to lose.

How long could a bankroll last on Book of Ra? We simulate thousands of sessions from this game's published RTP and volatility — the long-run math, not a prediction of your next spin.

Bankroll ($)Bet per spin ($)Speed

Volatility tier: High

Running simulation…

How this works

Each simulated spin either misses or returns a win drawn from a log-normal distribution, with the hit rate and spread set by the slot's volatility tier (High). The model is calibrated so the average return equals this slot's published RTP (92.13%), with wins capped at its top multiplier (5,000×).

This is a simplified, parametric model of the game's math — not its real paytable. It exists to make the house edge visible over many sessions, so the numbers above are averages across thousands of runs, never a forecast of one.

This is math, not a prediction. Real sessions vary wildly, and no strategy changes a game's built-in house edge. Play for fun, set limits, and never bet more than you can afford to lose.

Where to play Book of Ra

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Compare Book of Ra with other games

	Book of Ra Score 52This game	Charles Raider & The Book of Origins Score 69	Book of Claws Score 75	Lost in Giza 20 Score 68	Queen of Gold Score 67
Identity
Studio	Greentube	Darwin Gaming	Clawbuster	Pateplay	Pragmatic Play
Released	3/3/2005	12/9/2024	8/22/2024	5/3/2024	2/23/2017
Math
RTP	92.13%	95.79%	96%	96%	95.5%
Volatility	High volatility	—	High volatility	—	Medium volatility
Max win	5,000×	37,500×	50,000×	5,000×	—
Format
Reels	5	5	5	5	5
Layout	5x3	5x3	5x3	5x3	5x3
Paylines	9	10	10	20	25
Min bet	0.01	0.1	0.1	—	0.25
Max bet	18	20	20	—	125
Features
Progressive	—	—	—	✓	—
Wild symbol	✓	✓	✓	✓	✓
Free spins	✓	✓	✓	✓	✓
Scatter symbol	✓	✓	✓	✓	✓
Multiplier	—	✓	—	—	✓
Bonus game	—	—	—	✓	—
Respins	—	—	—	—	—

Every number is shown as a delta against Book of Ra.

Comparing against

Book of Ra

Greentube

RTP

92.13%

Max win

5,000×

Score

Charles Raider & The Book of Origins

+ Progressive+ Bonus Game

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01Is Book of Ra the original game in its series?

Yes. The supplied series context identifies Book of Ra as the original game in the Book of Ra Series, followed by numerous sequels, revamps, and updates.

02What is Book of Ra's RTP?

Book of Ra has a 92.13% RTP. This is a long-run theoretical return and does not predict the result of an individual session.

03How volatile is Book of Ra?

The game has High volatility and a maximum win of x5000.00. That profile places substantial importance on its feature outcomes and optional Gamble decision.

04Which features distinguish Book of Ra?

Its listed features include Free Spins, Additional Free Spins, Expanding Symbols, Wild Symbol, Scatter Symbol, and a Risk/Gamble Double game.

Series

Book of Ra

View all 4 games

Game	Year	RTP	Volatility	Slot Score
Book of RaCurrentGreentube	2005	92.13%	High volatility	52
Book of Ra deluxe 10: Win WaysGreentube	2022	95.15%	High volatility	77
Book of Ra Multi Card Bingo DeluxeGreentube	2022	93.89%	High volatility	50
Book of Ra Deluxe Win WaysLatestGreentube	2023	95.13%	Medium/High	75

Book of RaCurrent
Greentube · 2005
RTP92.13%Score52High volatility
Book of Ra deluxe 10: Win Ways
Greentube · 2022
RTP95.15%Score77High volatility
Book of Ra Multi Card Bingo Deluxe
Greentube · 2022
RTP93.89%Score50High volatility
Book of Ra Deluxe Win WaysLatest
Greentube · 2023
RTP95.13%Score75Medium/High