Triple Edge Studios

Book of Oz Lock 'N Spin

RARE Slots Video Slots Fantasy Magic Book Fairy tale

Book Of... sequel with paid reel locking and symbol choice

Only 0.09% of slots feature Hyperspins.

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

96.35%

return to player

Volatility

High volatility

variance

Max win

—

top multiplier

Min bet

$0.10

per spin

Reels

10 lines

Player rating

4.0 ★

14 votes

DEMO Play free, no signup

Triple Edge Studios

Embed on your site

4.0 / 5

14 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 96.35% → 9.0/10

Volatility9/10

high → 9.0/10

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

0.1–25 (×250) → 6.0/10

Provider Reputation6.9/10

provider avg 6.9 → 6.9/10

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: 73 — Book of Oz Lock 'N Spin by Triple Edge Studios

https://slotranker.com/triple-edge-studios/book-of-oz-lock-n-spin#score

How to cite

Slot Summary

Book of Oz Lock 'N Spin fills the gap between a conventional Book Of... slot and a spin with limited player control. Triple Edge Studios adds Hyperspins, a paid respin option that can lock selected reels before another result. Free Spins retain the expanding-symbol idea, but a Second Chance decision lets the chosen special symbol be replaced at the risk of receiving a lower-value one.

How It Plays

The base game uses five reels, three rows, and 10 paylines. Matching symbols pay through the regular line system before Hyperspins changes the next wager.

During Hyperspins, up to 4 reels can be held while the others respin. Each locked reel adds to the cost shown before confirmation.

Theme & Atmosphere

Book, Fairy tale, Fantasy, and Magic meet through an enchanted-book premise, a high-value magician figure, and the Scatter that opens the feature round.

The Oz reference gives the game a storybook identity, while its central object remains the magical book used as both Scatter and feature gateway.

Fantasy Magic Book Fairy tale

Features & Win Potential

Hyperspins combines Locked Reels with a Paid respin, allowing up to 4 reel positions to be preserved. It is a direct wager decision rather than a random modifier.

The 96.35% RTP sits alongside high volatility. Expanding Symbols become relevant during Free Spins, where the chosen symbol can cover complete reels when it appears.

High volatility Free Spins Scatter Symbol 5 Reels Book Of...Expanding Symbols 10 Paylines 96% RTP Paid respin Locked Reels Hyperspins

Bonus & Free Spins

Landing 3, 4, or 5 Scatters awards 10, 12, or 25 Free Spins. At least 3 further Scatters can retrigger the round.

Before Free Spins proceed, the game chooses an Expanding Symbol. Second Chance lets the player replace it, although the new selection may carry a lower value.

Spec sheet

Book of Oz Lock 'N Spin at a glance.

Identity

Slot nameBook of Oz Lock 'N Spin

StudioTriple Edge Studios

Released9/25/2019

Math

SlotRanker Score73

RTP96.35%

VolatilityHigh volatility

Max win—

Bet range$0.10 – $25.00

Player rating4.0 / 5 · 14 votes

Format

Reels5

Paylines10

Layout5x3

Features

Themes

Expected average based on this slot's 96.35% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$1.46

Cost per session$1.46

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 Oz Lock 'N 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: 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 (96.35%), 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 Oz Lock 'N Spin

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Compare Book of Oz Lock 'N Spin with other games

	Book of Oz Lock 'N Spin Score 73This game	Big Bad Wolf Score 81	Woodlanders Score 78	Book of Magic Score 76	Diamond Tales: The Little Mermaid Score 76
Identity
Studio	Triple Edge Studios	Quickspin	Betsoft	Amusnet	Greentube
Released	9/25/2019	6/26/2012	11/15/2022	7/22/2014	3/28/2023
Math
RTP	96.35%	97.34%	96.06%	96.09%	95.04%
Volatility	High volatility	Medium/High	High volatility	Medium/High	—
Max win	—	1,225×	3,794×	10,000×	50,000×
Format
Reels	5	5	5	5	5
Layout	5x3	5x3	5x3	5x3	5x3
Paylines	10	25	50	20	40
Min bet	0.1	0.25	0.25	0.01	0.2
Max bet	25	125	50	1000	40
Features
Progressive	—	—	—	✓	—
Wild symbol	—	✓	✓	✓	✓
Free spins	✓	✓	✓	✓	—
Scatter symbol	✓	✓	✓	—	✓
Multiplier	—	✓	—	—	✓
Bonus game	—	—	—	—	✓
Respins	—	—	—	—	✓

Every number is shown as a delta against Book of Oz Lock 'N Spin.

Comparing against

Book of Oz Lock 'N Spin

Triple Edge Studios

RTP

96.35%

Max win

—

Score

+ Progressive+ Wild− Scatter

Diamond Tales: The Little Mermaid

+ Wild+ Multiplier+ Bonus Game+ Respins− Free Spins

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01What does Lock 'N Spin mean in Book of Oz?

It refers to Hyperspins, a paid respin mechanic that lets you lock selected reels. Locking more reels raises the displayed cost of the respin.

02How are Free Spins triggered?

At least 3 Scatter symbols trigger Free Spins. Landing 3, 4, or 5 Scatters awards 10, 12, or 25 spins respectively.

03What does the expanding symbol do?

One regular symbol is selected for the Free Spins feature and can expand across its reels. Second Chance permits a reshuffle before the round continues.

04What are the RTP and volatility?

Book of Oz Lock 'N Spin has a listed RTP of 96.35% and high volatility. Its feature outcomes therefore carry substantial weight in the payout pattern.

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