Endorphina

Book of Conquistador

Slots Video Slots Aztec Action & Adventure Mythology History Egypt Book Treasure Exploration Ancient Native

Compact book slot with Aztec exploration and expanding symbols

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

96.05%

return to player

Volatility

—

variance

Max win

—

top multiplier

Min bet

$0.10

per spin

Reels

10 lines

Player rating

4.8 ★

3 votes

DEMO Play free, no signup

Endorphina

Embed on your site

4.8 / 5

3 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 & RTP9/10

RTP 96.05% → 9.0/10

Volatility8/10imputed

imputed medium (unknown) → 8.0/10

Win Potential—

no data

Features7/10

11 features → 7.0/10

Game Mechanics4.2/10

f=11 r=5 p=10 → 4.2/10

Context signals (tie-breakers)

Layout6/10

5x3 → 6.0/10

Bet Flexibility6/10

0.1–45 (×450) → 6.0/10

Provider Reputation6.6/10

provider avg 6.6 → 6.6/10

Popularity6.7/10

synthetic proxy → 6.7/10

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: 72 — Book of Conquistador by Endorphina

https://slotranker.com/endorphina/book-of-conquistador#score

How to cite

Slot Summary

For a taste centered on ten paylines and one decisive expanding symbol, Book of Conquistador keeps the route unusually compact. Endorphina uses the Book as both Wild and Scatter, then shifts the main interest to Free Spins, where a selected symbol can cover full reels and pay across nonadjacent positions. Bonus Buy and Gamble offer separate ways to reach or extend the risk.

How It Plays

Base-game wins run from left to right across ten fixed paylines. The Book substitutes for regular symbols, while the optional Gamble can risk a completed payout for a larger result.

The compact five-reel, three-row format places most of the variation in symbol behavior rather than reel size. Ordinary spins establish line wins before the expanding-symbol feature changes their evaluation.

Theme & Atmosphere

Aztec imagery, Exploration, and Treasure place the Conquistador inside an Ancient expedition story shaped by maps, pyramids, ornaments, and historical conquest references.

The Book theme links that setting to the familiar mystery-symbol format. History supplies the figure and setting, while Mythology influences the stylized treatment of the expedition.

Aztec Action & Adventure Mythology History Egypt Book Treasure Exploration Ancient Native

Features & Win Potential

The Expanding Symbols feature selects one regular icon before Free Spins. A qualifying set expands over complete reels, then pays across active lines without requiring adjacent positions.

The Risk/Gamble game follows ordinary wins and asks the player to identify a hidden card's color or suit. A wrong selection forfeits the amount placed at risk.

Free Spins Scatter Symbol Wild Symbol 5 Reels Book Of...Bonus Buy Additional Free Spins Expanding Symbols 10 Paylines 96% RTP Risk/Gamble (Double) game

Bonus & Free Spins

Three or more Scatter Symbols trigger ten Free Spins. Before the round starts, a Book reveals the symbol that will receive Expanding Symbols behavior.

Additional Free Spins are awarded when three more Scatters land during the feature. Bonus Buy can provide direct entry to the same Free Spins mechanic from the base game.

Spec sheet

Book of Conquistador at a glance.

Identity

Slot nameBook of Conquistador

StudioEndorphina

Released1/12/2024

Math

SlotRanker Score72

RTP96.05%

Max win—

Bet range$0.10 – $45.00

Player rating4.8 / 5 · 3 votes

Format

Reels5

Paylines10

Layout5x3

Expected average based on this slot's 96.05% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$1.58

Cost per session$1.58

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 Conquistador? 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: Mediumassumed — not published for this slot

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 (96.05%), with wins capped at its top multiplier (1,000×).

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 Conquistador

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Compare Book of Conquistador with other games

	Book of Conquistador Score 72This game	Jenny Nevada and the Diamond Temple Score 67	Book of Duat Score 75	Book of Montezuma Score 73	Lucky Jane and Aztec Book Score 72
Identity
Studio	Endorphina	Rival Gaming	Quickspin	Amatic	1spin4win
Released	1/12/2024	2/11/2025	11/9/2021	6/12/2023	9/14/2023
Math
RTP	96.05%	95.93%	94%	97.13%	97.07%
Volatility	—	—	High volatility	High volatility	High volatility
Max win	—	5,000×	32,760×	5,000×	2,000×
Format
Reels	5	5	5	5	5
Layout	5x3	5x3	5x3	5x3	5x3
Paylines	10	20	10	10	243
Min bet	0.1	0.2	0.1	0.1	0.1
Max bet	45	20	100	100	50
Features
Progressive	—	—	—	—	—
Wild symbol	✓	✓	✓	✓	✓
Free spins	✓	✓	✓	✓	✓
Scatter symbol	✓	✓	✓	✓	✓
Multiplier	—	✓	✓	—	—
Bonus game	—	✓	✓	—	—
Respins	—	—	—	—	—

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

Comparing against

Book of Conquistador

Endorphina

RTP

96.05%

Max win

—

Score

Jenny Nevada and the Diamond Temple

+ Multiplier+ Bonus Game

+ Multiplier+ Bonus Game

Lucky Jane and Aztec Book

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01What is the RTP of Book of Conquistador?

Book of Conquistador has a 96.05% RTP and uses ten fixed paylines across five reels.

02What does the Book symbol do?

The Book acts as both a Wild and a Scatter, substituting for regular symbols and triggering Free Spins when enough copies land.

03How does the expanding symbol work?

A regular symbol is selected before Free Spins. When enough copies land, it expands vertically and pays across active lines even from nonadjacent reels.

04Can the Free Spins round be retriggered?

Yes. Three additional Book Scatters during the round award another ten Free Spins with the same selected expanding symbol.

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