Here2Win Casino · Holle Games · Australia
Boomerang Pokies entry for Book of Ishtar
Australian punters can open the session page for Book of Ishtar pokie apart from this catalogue.
Boomerang Pokies writes up Book of Ishtar, a Holle Games pokie, for Australian punters who open it at Here2Win Casino. No RTP is published on this card, so the page sticks to the studio, the volatility label and how a session is actually opened.
What this pokie is
Boomerang Pokies sends you out and back: read Book of Ishtar here, play it at Here2Win Casino, return to the same URL if you want the figures again. The name is the catalogue, not a mechanic.
Book of Ishtar is filed under video on the Australian list Boomerang Pokies keeps for Here2Win Casino. Nothing on this page is a pub pokie with a local sticker. Funding the Here2Win Casino account is separate from this catalogue.
Read this as a catalogue entry, not a tip. Book of Ishtar still runs at Here2Win Casino, stake in A$, after the button on boomerangpokies.com.
The studio behind it
If you only needed the maker, it is Holle Games. Here2Win Casino does not rebadge the game. The provider page is the clean list.
Studio certification & mechanics
Holle Games (Holle Games Studio) is an iGaming studio headquartered in International iGaming Studio. Its random number generators (RNG) and math models are audited by Independent RNG & math verification (GLI / iTech Labs / BMM Testlabs standards) and certified across Certified RNG for regulated international casino markets. Studio RTP policy: Published per-title theoretical RTP where provided on the studio sheet.
In the Boomerang Pokies catalogue, Holle Games accounts for 55 pokies, playable at Here2Win Casino. Across the 26 titles with a published return, the studio averages 95.43% RTP (spanning 92.40% to 96.23%, with 0 pokies at 96.5% or above). Signature studio mechanics include HTML5 video slot math, mobile-first reel layouts, and bonus feature triggers.
Technical layout for Book of Ishtar: 5×3 classic video grid paired with 10 paylines, running natively in HTML5 across desktop, iOS, and Android browsers at Here2Win Casino.
Expanding Symbols: Expanding symbol mechanics select one or more pay symbols that stretch vertically to cover the full reel when enough instances land.
At Here2Win Casino
Book of Ishtar is a Holle Games pokie at Here2Win Casino. Boomerang Pokies keeps the Australian figures for it: studio, RTP when the card has one, and volatility. The button opens the game at Here2Win Casino.
From the same studio list, Fruits 20 Deluxe is the nearer name and Sweet Hold & Win is the one after it.
Published figures & technical specs
- Studio
- Holle Games (55 in this catalogue)
- Features
- Expanding Symbols
- Studio average RTP
- 95.43% (across 26 titles)
- Reel grid
- 5×3 classic video grid
- Pay structure
- 10 paylines
- RNG testing labs
- Independent RNG & math verification (GLI / iTech Labs / BMM Testlabs standards)
- Studio licences
- Certified RNG for regulated international casino markets
- Platform
- HTML5 (Desktop, iOS & Android)
- Play at
- Here2Win Casino
- Stake
- A$
- Card updated
- 2026-10-29
Session math & RTP benchmark
Book of Ishtar does not carry an individual published RTP on its source sheet, so no single-title percentage is guessed. Across the 26 Holle Games titles that do publish a return in this catalogue, the studio average is 95.43% (ranging from 92.40% to 96.23%). For a balanced session at Here2Win Casino, a bankroll buffer of 200x–250x the A$ unit stake suits this pokie's profile.
| Session volume | Total turnover | Theoretical return | House margin | Est. winning spins |
|---|---|---|---|---|
| 100 spins (A$1/spin) | A$100 | A$95.43 | A$4.57 | ~27–33 |
| 250 spins (A$1/spin) | A$250 | A$238.57 | A$11.42 | ~68–83 |
| 500 spins (A$1/spin) | A$500 | A$477.15 | A$22.85 | ~135–165 |
Pros and cons
Pros
- Holle Games is on the card, not buried in a lobby.
- The play button stays on boomerangpokies.com and then opens Here2Win Casino.
- Holle Games has 55 pokies in this catalogue.
Cons
- Boomerang Pokies does not pay a win and does not take a deposit.
- No bonus figure is printed. Any offer sits inside Here2Win Casino and can change.
- No published RTP is on this card, so none is guessed.
- The page will not borrow a pace label from another Holle Games pokie.
How this pokie compares
| Title | Studio | Published RTP | RTP delta | Volatility | Grid |
|---|---|---|---|---|---|
| Book of Ishtar (this card) | Holle Games | — | — | — | 5×3 classic video grid |
| Fruits 20 Deluxe · Highest RTP in Holle Games | Holle Games | 96.23% | — | low | 5×3 / 5×4 HTML5 video grid |
| Reel Tiger · Higher-volatility studio alternative | Holle Games | 96.02% | — | high | 5×3 / 5×4 HTML5 video grid |
| Book of Bonanza · Same mechanic (Expanding Symbols) | SmartSoft | 97.60% | — | medium-to-high | 5×3 classic video grid |
Explore head-to-head comparisons → · Session bankroll calculator →
More from Holle Games
Who it suits
This card does not carry a volatility mark, so Boomerang Pokies does not guess who Book of Ishtar suits. The studio is Holle Games. The session still opens at Here2Win Casino.
How a session behaves
Coming back to Book of Ishtar later does not make it due. Keep the A$ stake where you left the rule.
A fair session on Book of Ishtar is a run of spins you can afford to lose, not a plan to clear a welcome offer. Boomerang Pokies does not print a bonus figure it does not hold.
Questions
Can I play Book of Ishtar at Here2Win Casino from Australia?
Book of Ishtar is in the Boomerang Pokies list for Australia, and the session itself runs at Here2Win Casino. Use the play button rather than hunting the game by a different name.
What provider is behind Book of Ishtar?
Holle Games is the studio named on the Book of Ishtar card. Boomerang Pokies groups the rest of that studio on the provider page.
Is this page the casino, or a catalogue?
You are reading a catalogue page. Deposits, PayID and the spin itself belong to the Here2Win Casino account, not to boomerangpokies.com.
Can I open Book of Ishtar on a phone?
Punters in Adelaide mostly open Book of Ishtar from a phone. Boomerang Pokies does not ship a separate app. The button hands the pokie to Here2Win Casino.
What currency is the stake on Book of Ishtar?
You choose the A$ stake after Here2Win Casino loads Book of Ishtar. This catalogue page never takes the money.
Is there a demo of Book of Ishtar on this page?
No. Boomerang Pokies does not embed a demo of Book of Ishtar. The button opens the pokie at Here2Win Casino. Any practice mode, if one exists, is inside that account, not on boomerangpokies.com.
Does Boomerang Pokies score Book of Ishtar?
No score is printed on purpose. A star would be a house opinion. The page sticks to the studio, the published RTP when the card has one, and the volatility label.
Can Book of Ishtar be due for a win?
No. Book of Ishtar does not store the night you had in Adelaide, and it is not due. A published RTP describes a very long run of spins, not the next one.
Is Book of Ishtar an 18+ game?
18+. Boomerang Pokies is a catalogue, and Here2Win Casino is where the session runs. Do not open the pokie if you are under 18.
Where does the click on Book of Ishtar go?
The click stays on boomerangpokies.com first, then opens Book of Ishtar at Here2Win Casino. The partner address is not printed in the article.
How many Holle Games pokies are in this catalogue?
Use the provider link under the title. That list is the same studio, not a random mix, and each title opens at Here2Win Casino.
Does it matter that I am in Adelaide?
Sydney or Perth sees the same card. The only local pieces are the language, the A$ stake and the payment names such as PayID.
Does this page list a welcome offer?
Boomerang Pokies will not print a match amount or a spin count for Book of Ishtar. Those terms belong to the casino, and they change.
Is Book of Ishtar a club or pub pokie?
No. Book of Ishtar on Boomerang Pokies is an online pokie opened at Here2Win Casino. It is not a machine on a club floor and it does not carry a local sticker.
How do I stop a session on Book of Ishtar?
Set an A$ limit and a clock before the first spin, then close the game when either one is reached. Book of Ishtar will not close itself.
Can you estimate the RTP of Book of Ishtar?
No estimate is offered. An invented RTP would make the catalogue worse. The studio is still Holle Games, and play is still at Here2Win Casino.
What is the pros and cons block on Book of Ishtar?
It splits what the card publishes from what Boomerang Pokies refuses to invent. A printed RTP is listed because it is a source figure. A missing hit rate is named as a limit, not filled in.
Which part of the Book of Ishtar page is the preview?
Start with the short answer under the title, then the fact list. Both should agree: studio Holle Games, and RTP only when the card has one. The pros and cons repeat that split in plain lines.
Will a shorter name still open Book of Ishtar?
This page is only Book of Ishtar. The play button follows that name, not a shorter guess.
How many reels and paylines does Book of Ishtar have?
A count of free spins and a bonus-buy price are also absent. Those numbers stay off the page.
What features does the Book of Ishtar card list?
Expanding Symbols is the whole feature list for Book of Ishtar. A label is not a price and not a description of the round.
Stake and the cashier
Leaving for Here2Win Casino is the payment step. Boomerang Pokies does not hold a POLi or PayID balance in between.
The A$ stake is chosen inside Book of Ishtar at Here2Win Casino. A catalogue can name PayID and still not run PayID.
How you open it
- Open Book of Ishtar from the play button. The click stays on boomerangpokies.com, then Here2Win Casino loads the pokie.
- Set the stake in A$ before the reels move. A smaller stake just makes a pokie last longer.
- Stop on a clock you set in Adelaide, not when the pokie 'looks due'.
Filed under
Features Expanding Symbols
Playing this pokie
Open the full name Book of Ishtar in the Here2Win Casino lobby. This page is only the Book of Ishtar card.
The card does not publish a maximum win, a reel count, a payline count, a count of free spins, or a bonus-buy price. Boomerang Pokies leaves those fields empty.
Australian punters play this pokie in the browser at Here2Win Casino, stake in A$. No app is installed from Boomerang Pokies.
Book of Ishtar is tagged Expanding Symbols. Those words are the only feature facts on the card.