Reel Kingdom

Book of Kingdoms

Slots Video Slots Action & Adventure Jungle Book Animals Treasure Exploration Middle east

Desert treasure fiction split between book and coin features

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

95.67%

return to player

Volatility

Medium volatility

variance

Max win

100×

top multiplier

Min bet

$0.25

per spin

Reels

25 lines

Player rating

3.7 ★

15 votes

DEMO Play free, no signup

Reel Kingdom

Embed on your site

3.7 / 5

15 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 & RTP8/10

RTP 95.67% → 8.0/10

Volatility8/10

medium → 8.0/10

Win Potential4/10

x100.00 (100×) → 4.0/10

Features8/10

12 features → 8.0/10

Game Mechanics5.6/10

f=12 r=5 p=25 → 5.6/10

Context signals (tie-breakers)

Layout6/10

5x3 → 6.0/10

Bet Flexibility6/10

0.25–250 (×1000) → 6.0/10

Provider Reputation7.1/10

provider avg 7.1 → 7.1/10

Popularity0/10

synthetic proxy → 0.0/10

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: 59 — Book of Kingdoms by Reel Kingdom

https://slotranker.com/reel-kingdom/book-of-kingdoms#score

How to cite

Slot Summary

A book symbol can open Free Spins and nominate an expanding symbol, while coin landings lead toward a separate respin route. Book of Kingdoms uses those two feature paths to turn an exploration story into a choice between symbol expansion and held-value collection. Released through the Reel Kingdom collaboration with Pragmatic Play in 2020, it pairs a 95.67% RTP with a mystical desert-city search for the named book.

How It Plays

The base game uses 25 paylines across 5 reels. Stacked symbols can occupy several positions, making their placement more important than isolated single-symbol landings.

Book and coin symbols direct play into different routes. Books lead away from the base reels, while a sufficient coin count changes the round into a held-value respin sequence.

Theme & Atmosphere

Book of Kingdoms places its exploration story in a mystical desert city, combining Middle east imagery with a search for treasure and a supposedly fate-changing book.

Animals and jungle elements widen the expedition beyond the city itself. The mood resembles serialized adventure fiction, with the book serving as both objective and supernatural device.

Action & Adventure Jungle Book Animals Treasure Exploration Middle east

Features & Win Potential

During Free Spins, a randomly chosen regular symbol becomes the Expanding Symbol. It can pay across separated reels, so adjacency is not required for that selected symbol.

The respin feature holds landed money values while remaining spaces continue to turn. Every new money symbol restores the available respins, extending the collection attempt.

Free Spins Scatter Symbol Wild Symbol Respins Medium volatility 5 Reels Stacked Symbols High Payout Book Of...Expanding Symbols RTP range 25 Paylines

Bonus & Free Spins

At least 3 Book symbols activate Free Spins and select an Expanding Symbol for the round. Its paying copies can expand even when they occupy nonadjacent reels.

A separate bonus starts from at least 5 coin symbols. It grants 3 respins, resets that count whenever another coin lands, and totals the held values when the round ends.

Screenshots

3 gameplay frames

Gameplay screenshot of Book of Kingdoms (1 of 3)

Gameplay screenshot of Book of Kingdoms (2 of 3)

Gameplay screenshot of Book of Kingdoms (3 of 3)

Spec sheet

Book of Kingdoms at a glance.

Identity

Slot nameBook of Kingdoms

StudioReel Kingdom

Released10/21/2020

Math

SlotRanker Score59

RTP95.67%

VolatilityMedium volatility

Max win100×

Bet range$0.25 – $250.00

Player rating3.7 / 5 · 15 votes

Format

Reels5

Paylines25

Layout5x3

Features

Themes

Expected average based on this slot's 95.67% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$4.33

Cost per session$4.33

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 Kingdoms? 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: Medium

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 (Medium). The model is calibrated so the average return equals this slot's published RTP (95.67%), with wins capped at its top multiplier (100×).

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 Kingdoms

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Compare Book of Kingdoms with other games

	Book of Kingdoms Score 59This game	John Hunter and the Aztec Treasure Score 69	Cash Explorer Score 63	3 Secret Cities Score 88	Treasure Temple Score 82
Identity
Studio	Reel Kingdom	Pragmatic Play	Red Tiger Gaming	4ThePlayer	Wizard Games
Released	10/21/2020	7/25/2019	12/8/2024	5/19/2021	10/9/2019
Math
RTP	95.67%	95.5%	95.74%	96.5%	96.97%
Volatility	Medium volatility	High volatility	Medium volatility	High volatility	High volatility
Max win	100×	10,804×	2,000×	50,000×	—
Format
Reels	5	5	5	5	5
Layout	5x3	5x6	5x3	5x3	5x3
Paylines	25	7776	20	1024	243
Min bet	0.25	0.2	0.1	0.1	0.2
Max bet	250	100	40	20	40
Features
Progressive	—	—	—	—	✓
Wild symbol	✓	✓	✓	✓	—
Free spins	✓	✓	✓	✓	✓
Scatter symbol	✓	✓	✓	✓	✓
Multiplier	—	✓	✓	✓	—
Bonus game	—	—	—	✓	✓
Respins	✓	—	—	—	—

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

Comparing against

Book of Kingdoms

Reel Kingdom

RTP

95.67%

Max win

100×

Score

John Hunter and the Aztec Treasure

+ Multiplier− Respins

+ Multiplier− Respins

+ Multiplier+ Bonus Game− Respins

+ Progressive+ Bonus Game− Wild− Respins

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