Book of Ishtar

Book of Ishtar slot poster
Rating
- /10
RTP
95.03%
Volatility
HIGH
Max win
5,000×
Hit freq
-
Grid
-
Bet
-
Released
2020-01-01

A playable demo is not available in your region.

Our take

High-volatility Mesopotamian book slot from Hölle Games with 5000× max win and buy-bonus feature.

Book of Ishtar is Hölle Games' foray into the ancient-mythology book-slot space, blending Mesopotamian (Ishtar) and Egyptian iconography across 5 reels, 3 rows, and 10 paylines. At 95.03% RTP, it sits at the lower competitive threshold. The game's differentiator is the buy feature—players can purchase direct access to the free-spins round without waiting for scatter triggers, trading additional bet cost for immediate bonus play.

High variance means payouts cluster infrequently but substantially. The 5000× maximum is achievable via the base game or free spins, where symbol expansion and re-triggering mechanics amplify payouts. Scatter symbols trigger the bonus round at no additional cost; risk/gamble features post-win let players compound successful spins through card-colour guessing.

The blended mythology theme—Ishtar, pyramids, and ancient artefacts—gives visual distinction from standard Egyptian offerings. Hölle Games' execution is competent, though feature innovation is limited. High volatility demands bankroll discipline.

Pros

  • Buy feature lets impatient players trigger bonuses on demand
  • 5000× max win rewards aggressive play
  • Risk/gamble feature adds optional upside for confident players

Cons

  • High volatility and 95.03% RTP demand deep bankroll reserves
  • Buy feature can become expensive; appeals to high-stakers only
  • Limited feature innovation; Mesopotamian theme is niche appeal

Math & maxes

Math breakdown

Volatility score
3 / 5
Max win
5,000x the stake
FAQ
What is the buy-bonus feature?

Pay an additional stake to trigger free spins immediately without waiting for scatter symbols.

What is the maximum win?

5000× your stake, achieved through symbol expansion and re-trigger mechanics in the base or bonus round.

Is there a risk/gamble feature?

Yes. After any win, gamble on a 50/50 card-colour guess to double or lose your payout.

How volatile is Book of Ishtar?

High volatility; expect infrequent but substantial wins. Long dry spells are typical.