Holle Games

Book of Holla: Bonus Spin

Slots Video Slots Fantasy Magic Nature Forest Book Butterfly

Forest-fantasy Book slot with bonus access and gamble choices

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

92.07%

return to player

Volatility

Medium/High

variance

Max win

100×

top multiplier

Min bet

$0.10

per spin

Reels

10 lines

Player rating

4.2 ★

1 votes

DEMO Play free, no signup

Holle Games

Embed on your site

4.2 / 5

1 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 92.07% → 3.0/10

Volatility9/10

high → 9.0/10

Win Potential4/10

x100.00 (100×) → 4.0/10

Features7.5/10

10 features → 7.5/10

Game Mechanics5.1/10

f=10 r=5 p=10 → 5.1/10

Context signals (tie-breakers)

Layout6/10

5x3 → 6.0/10

Bet Flexibility6/10

0.1–50 (×500) → 6.0/10

Provider Reputation5.6/10

provider avg 5.6 → 5.6/10

Popularity5/10

synthetic proxy → 5.0/10

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: 53 — Book of Holla: Bonus Spin by Holle Games

https://slotranker.com/holle-games/book-of-holla-bonus-spin#score

How to cite

Slot Summary

August 29, 2024 placed Book of Holla: Bonus Spin in Holle Games' fantasy branch of the Book format, replacing desert ruins with a magical Forest and fairy folklore. The 5x3 game uses 10 paylines, a combined Wild and Scatter book, Free Spins, Bonus Buy access, multiplier collection, and two Gamble choices under a Medium/High volatility profile.

How It Plays

The base game uses 10 fixed paylines and pays standard combinations from left to right. The Book substitutes as a Wild Symbol and also acts as a Scatter Symbol.

After an eligible win, the Gamble option provides Card Gamble and Ladder Gamble choices. Both can increase an award, but an unsuccessful selection can reduce or remove it.

Theme & Atmosphere

Book, Butterfly, Fantasy, Forest, Magic, and Nature replace the usual desert setting of this slot format with woodland folklore and a fairy-centered premise.

The forest subject carries through the special symbols, including the book, charms, and fairy figure. These elements separate the game from a conventional Egyptian Book treatment.

Fantasy Magic Nature Forest Book Butterfly

Features & Win Potential

Bonus Buy offers direct access to the Free Spins feature, while the regular trigger remains available through Scatter Symbols during standard reel play.

The Multiplier increases as qualifying items are collected during Free Spins. Separately, Risk/Gamble choices allow an eligible base-game award to be placed at risk.

Free Spins Multiplier Scatter Symbol Wild Symbol Medium/High Gamble Book Of...Bonus Buy RTP range Risk/Gamble (Double) game

Bonus & Free Spins

Free Spins use the Book trigger and add a Multiplier that can rise as qualifying items are collected. The Bonus Buy provides an alternative route into that round.

Bonus Spin events can add spins without another paid wager. This mechanism operates separately from the main Free Spins round and its collected Multiplier.

Spec sheet

Book of Holla: Bonus Spin at a glance.

Identity

Slot nameBook of Holla: Bonus Spin

StudioHolle Games

Released8/29/2024

Math

SlotRanker Score53

RTP92.07%

VolatilityMedium/High

Max win100×

Bet range$0.10 – $50.00

Player rating4.2 / 5 · 1 votes

Format

Reels5

Paylines10

Layout5x3

Features

Themes

Expected average based on this slot's 92.07% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$3.17

Cost per session$3.17

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 Holla: Bonus Spin? 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-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 (Medium-High). The model is calibrated so the average return equals this slot's published RTP (92.07%), 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 Holla: Bonus Spin

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Compare Book of Holla: Bonus Spin with other games

	Book of Holla: Bonus Spin Score 53This game	Jungle Queen Score 80	Fairy Fantasy Exotic Wilds Score 77	Theatre of Night Score 71	Wild Tome of the Woods Score 69
Identity
Studio	Holle Games	BGaming	Armadillo Studios	NextGen	Quickspin
Released	8/29/2024	2/20/2025	6/27/2023	3/28/2017	9/5/2019
Math
RTP	92.07%	96.15%	96%	96.14%	96.28%
Volatility	Medium/High	High volatility	High volatility	Medium volatility	High volatility
Max win	100×	10,000×	—	—	5,000×
Format
Reels	5	5	5	5	5
Layout	5x3	5x3	5x3	5x3	5x4
Paylines	10	20	243	10	26
Min bet	0.1	0.25	0.2	0.25	0.25
Max bet	50	25	80	250	100
Features
Progressive	—	—	—	—	—
Wild symbol	✓	✓	—	✓	✓
Free spins	✓	✓	✓	✓	✓
Scatter symbol	✓	✓	✓	✓	✓
Multiplier	✓	✓	—	—	—
Bonus game	—	✓	—	✓	—
Respins	—	—	—	✓	✓

Every number is shown as a delta against Book of Holla: Bonus Spin.

Comparing against

Book of Holla: Bonus Spin

Holle Games

RTP

92.07%

Max win

100×

Score

Fairy Fantasy Exotic Wilds

+ Bonus Game+ Respins− Multiplier

Wild Tome of the Woods

+ Respins− Multiplier

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01What is the RTP of Book of Holla: Bonus Spin?

The catalog lists a 92.07% RTP. The game also carries Medium/High volatility, so individual sessions can differ substantially from that long-run theoretical return.

02What does the Book symbol do?

The Book serves as both a Wild Symbol and a Scatter Symbol, helping complete ordinary wins while also providing access to Free Spins.

03Does Book of Holla: Bonus Spin include a Gamble feature?

Yes. The game offers Card Gamble and Ladder Gamble routes after eligible wins, letting the player risk an existing award for a larger result.

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