Expanse Studios

Book of Eskimo

A northern book-slot homage with an ice-locking twist

SlotRanker Score
69
/ 99
69
05099

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

RTP
96.11%
return to player
Volatility
—
variance
Max win
—
top multiplier
Min bet
$15.00
per spin
Reels
5
10 lines
Player rating
3.5 ★
12 votes
DEMO Play free, no signup
Expanse Studios
Book of Eskimo
Embed on your site
3.5 / 5
12 ratings
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User ratings are shown separately from the Slot Score unless stated otherwise.

Why this score

Partial data (71%)

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

Slot score profile across 5 weighted categoriesPayouts & RTP9/10RTP 96.11% → 9.0/10Volatility8/10imputedimputed medium…Win Potential—no dataFeatures8.5/1013 features → 8.5/10Game Mechanics5.1/10f=13 r=5 p=10 →…
Payouts & RTP9/10
RTP 96.11% → 9.0/10
Volatility8/10imputed
imputed medium (unknown) → 8.0/10
Win Potential—
no data
Features8.5/10
13 features → 8.5/10
Game Mechanics5.1/10
f=13 r=5 p=10 → 5.1/10
Context signals (tie-breakers)
Layout6/10
5x3 → 6.0/10
15–1500 (×100) → 4.0/10
provider avg 6.6 → 6.6/10
synthetic proxy → 3.3/10

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: 69 — Book of Eskimo by Expanse Studios

https://slotranker.com/expanse-studios/book-of-eskimo#score
How to cite

Slot Summary

A five-reel book-slot format carries Book of Eskimo into an icy northern setting. Expanse Studios presents the game as a tribute to book slots, then gives that premise a frost-specific feature in Chained in Ice. The connection between setting and play comes from wilds that remain on screen before slipping away.
MechanicsExpanded wilds descend through repeated spins

How It Plays

Chained in Ice expands its triggering wilds to cover their reels. Those wilds remain for respins, moving downward by a position after each attempt until they have left the playing area.

Wilds arriving during the sequence are retained too, but these later arrivals do not expand. The distinction matters because an original full-reel wild and a newly landed wild cover different amounts of space.

Bonus & Free Spins

The free-spins round changes up to two regular symbols into wilds before play begins. Chained in Ice can also activate during these spins, allowing the additional substitutions and retained wilds to operate together.

Spec sheet
Book of Eskimo at a glance.
Identity
Slot nameBook of Eskimo
Released7/27/2021
Math
SlotRanker Score69
RTP96.11%
Max win—
Bet range$15.00 – $1500.00
Player rating3.5 / 5 · 12 votes
Format
Reels5
Paylines10
Layout5x3

True Cost to Play

Expected average based on this slot's 96.11% RTP — individual sessions vary with volatility.

Cost per hour$233.40
Cost per session$233.40

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

Bankroll survival simulator

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

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 (96.11%), 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 Eskimo

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Book of Eskimo
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Score 69This game
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Identity
Studio
Released7/27/20211/22/202310/13/202312/8/202211/9/2018
Math
RTP96.11%96.01%93.11%96.3%96.65%
Volatility—Medium volatilityHigh volatilityMedium volatilityMedium/High
Max win—1,000×5,000×5,200×—
Format
Reels55555
Layout5x35x35x35x35x3
Paylines1050102010
Min bet150.50.10.20.1
Max bet15005050400100
Features
Progressive✓————
Wild symbol✓✓——✓
Free spins✓✓✓✓✓
Scatter symbol✓✓—✓—
Multiplier—————
Bonus game—✓———
Respins✓✓———

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Questions & Answers

Book of Eskimo FAQ

3 questions

It lets you risk a win on a card-color prediction. A correct prediction doubles the amount being gambled; an incorrect prediction loses it.

Book of Eskimo uses 10 paylines across its five-reel layout, with regular combinations evaluated through that line-based payout system.

Book of Eskimo has a stated RTP of 96.11%, representing its theoretical return over extended play rather than a guaranteed session outcome.

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