Holle Games

Book of Ishtar

RARE Slots Video Slots Mythology Book Egypt Treasure Ancient

Play Book of Ishtar slot by Holle Games for free in demo mode! Explore RTP, bonus rounds, and key features before playing for real.

Only 0.4% of slots combine Book Of... and Risk/Gamble (Double) Game.

SlotRanker Score

/ 99

05099

The SlotRanker Score is calculated from the visible data below. It is not affected by affiliate deals or paid placement.

How this score is built

RTP

93.11%

return to player

Volatility

High volatility

variance

Max win

5,000×

top multiplier

Min bet

$0.10

per spin

Reels

10 lines

Player rating

4.1 ★

3 votes

DEMO Play free, no signup

Holle Games

Embed on your site

4.1 / 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 & RTP5/10

RTP 93.11% → 5.0/10

Volatility9/10

high → 9.0/10

Win Potential7.4/10

x5000.00 (5000×) → 7.4/10

Features6/10

9 features → 6.0/10

Game Mechanics4.2/10

f=9 r=5 p=10 → 4.2/10

Context signals (tie-breakers)

Layout6/10

5x3 → 6.0/10

Bet Flexibility6/10

0.1–50 (×500) → 6.0/10

Provider Reputation5.7/10

provider avg 5.7 → 5.7/10

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: 58 — Book of Ishtar by Holle Games

https://slotranker.com/holle-games/book-of-ishtar#score

How to cite

Spec sheet

Book of Ishtar at a glance.

Identity

Slot nameBook of Ishtar

StudioHolle Games

Released4/4/2024

Math

SlotRanker Score58

RTP93.11%

VolatilityHigh volatility

Max win5,000×

Bet range$0.10 – $50.00

Player rating4.1 / 5 · 3 votes

Format

Reels5

Paylines10

Layout5x3

Features

Themes

Expected average based on this slot's 93.11% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$2.76

Cost per session$2.76

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 Ishtar? 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 (93.11%), with wins capped at its top multiplier (5,000×).

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.

Compare Book of Ishtar with other games

	Book of Ishtar Score 58This game	Cleo's Book Score 87	Shadow Summoner Egypt Score 79	Cleopatra's Fortune Score 78	Book of Ultimate Infinity Reels Score 76
Identity
Studio	Holle Games	Belatra Games	Fantasma Games	Nextspin	Red7
Released	4/4/2024	10/21/2022	9/23/2024	8/3/2024	12/15/2020
Math
RTP	93.11%	96.01%	96.23%	96.97%	96.5%
Volatility	High volatility	High volatility	Medium volatility	Medium volatility	High volatility
Max win	5,000×	50,000×	5,135×	5,000×	5,000×
Format
Reels	5	5	6	5	6
Layout	5x3	5x3	6x5	5x3	6x3
Paylines	10	3125	Pay Anywhere	32400	3
Min bet	0.10	0.20	0.10	0.40	0.20
Max bet	50.00	50.00	150.00	4000.00	50.00
Features
Progressive	—	—	—	—	—
Wild symbol	—	✓	✓	✓	✓
Free spins	✓	✓	✓	✓	✓
Scatter symbol	✓	✓	—	✓	✓
Multiplier	—	✓	✓	✓	✓
Bonus game	—	—	—	—	—
Respins	—	—	✓	—	—

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

Comparing against

Book of Ishtar

Holle Games

RTP

93.11%

Max win

5,000×

Score

Shadow Summoner Egypt

+ Wild+ Multiplier+ Respins− Scatter

Book of Ultimate Infinity Reels

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