Here2Win Casino · Holle Games · Australia
Book of Grimm card on Pokies Vault
Australian punters can open the session page for Book of Grimm pokie apart from this catalogue.
Pokies Vault writes up Book of Grimm, 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.
More from Holle Games
How this pokie compares
| Title | Studio | Published RTP | RTP delta | Volatility | Grid |
|---|---|---|---|---|---|
| Book of Grimm (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 →
At Here2Win Casino
Here2Win Casino is the casino on this card. Beside Book of Grimm the provider page lists 55 other Holle Games pokies, all played at Here2Win Casino.
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
Because the source card for Book of Grimm omits a standalone RTP, Pokies Vault uses the verified studio distribution as context rather than inventing a figure. 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$22.85 | ~135–165 |
Pros and cons
Pros
- Holle Games is on the card, not buried in a lobby.
- Stake for Australian punters is in A$ at Here2Win Casino.
- Holle Games has 55 pokies in this catalogue.
Cons
- Pokies Vault 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.
- The return gap is left empty on purpose.
- The page will not borrow a pace label from another Holle Games pokie.
The studio behind it
Holle Games is the studio printed on Book of Grimm. Pokies Vault lists 55 of their pokies for Australia, and this is one of them. The rest sit on the provider page.
The Holle Games page holds Holla die Waldfee Hold & Win beside Hellish Seven Respin.
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 Pokies Vault 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 Grimm: 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.
What this pokie is
Pokies Vault files Book of Grimm as a record: studio Holle Games, then the numbers the card actually has, then the door to Here2Win Casino. If a number is missing, the vault leaves the shelf empty.
Book of Grimm is the Holle Games pokie Pokies Vault writes up for punters who open it at Here2Win Casino. Nothing on this page is a second RTP invented for Australia.
Pokies Vault names the game and stops there. Book of Grimm still runs at Here2Win Casino, stake in A$, after the button on pokiesvault.com.
How you open it
- Open Book of Grimm from the play button. The click stays on pokiesvault.com, then Here2Win Casino loads the pokie.
- Set the stake in A$ before the reels move. A smaller stake just makes a pokie last longer.
- Stop on a clock you set in Perth, not when the pokie 'looks due'.
Questions
Where do I open Book of Grimm if I am in Australia?
Book of Grimm is in the Pokies Vault list for Australia, and the session itself runs at Here2Win Casino. Use the play button rather than hunting the game by a different name.
Who makes Book of Grimm?
Holle Games is the studio named on the Book of Grimm card. Pokies Vault groups the rest of that studio on the provider page.
Is this page the casino, or a catalogue?
Pokies Vault is a catalogue. The stake in A$ is placed at Here2Win Casino after you follow the play button. This page does not hold a balance.
Does Book of Grimm work on mobile in Australia?
Yes. The play button on pokiesvault.com is the same on a phone as on a desktop. The session then runs at Here2Win Casino, and the stake is still in A$.
What currency is the stake on Book of Grimm?
You choose the A$ stake after Here2Win Casino loads Book of Grimm. This catalogue page never takes the money.
Is there a demo of Book of Grimm on this page?
This page is the written card. It does not run the reels, free or paid. Play happens at Here2Win Casino.
Why is there no star rating for Book of Grimm?
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.
Does Book of Grimm remember my last session?
Nothing on this page is a timer for a feature. If the last session went badly, the next one does not owe you the difference.
How old do I have to be to play Book of Grimm?
The page is written for adults in Australia. Gambling can harm. Stop when the session stops being a choice.
What does the play button actually do?
Pokies Vault records the page you were on and sends you to Here2Win Casino with Australia already on the trail.
How many Holle Games pokies are in this catalogue?
Pokies Vault lists 55 pokies from Holle Games for Australia. Book of Grimm is one of them. The provider page holds the rest.
Is Book of Grimm different in another Australian city?
No. Perth is named because readers are there. It is not a setting inside Book of Grimm, and it does not change the RTP.
Does this page list a welcome offer?
Pokies Vault will not print a match amount or a spin count for Book of Grimm. Those terms belong to the casino, and they change.
Is this the same machine I would find in a club?
No. Book of Grimm on Pokies Vault 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.
When should I close Book of Grimm?
Set an A$ limit and a clock before the first spin, then close the game when either one is reached. Book of Grimm will not close itself.
Can you estimate the RTP of Book of Grimm?
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.
Why does Book of Grimm have a pros and cons list?
It splits what the card publishes from what Pokies Vault 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 Grimm page is the preview?
The preview is the same card, shortened. It is not a tip and it does not know how your session in Perth will finish.
How do I open the right Book of Grimm?
Use the full name on this card. A shorter search in the Here2Win Casino lobby can open a different Holle Games title.
What is the maximum win on Book of Grimm?
A count of free spins and a bonus-buy price are also absent. Those numbers stay off the page.
Which feature labels are on Book of Grimm?
Expanding Symbols is the whole feature list for Book of Grimm. A label is not a price and not a description of the round.
How a session behaves
Use the figures first and the mood never. Book of Grimm at Here2Win Casino is still only a session with an A$ stake.
The maths does not soften because the catalogue page is long. Walk away while the stake in A$ is still a choice.
Stake and the cashier
The vault does not store deposits. PayID and cards are a Here2Win Casino matter once pokiesvault.com has handed you over.
The A$ stake is chosen inside Book of Grimm at Here2Win Casino. A catalogue can name PayID and still not run PayID.
Who it suits
This card does not carry a volatility mark, so Pokies Vault does not guess who Book of Grimm suits. The studio is Holle Games. The session still opens at Here2Win Casino.
Filed under
Features Expanding Symbols
Playing this pokie
Open the full name Book of Grimm in the Here2Win Casino lobby. This page is only the Book of Grimm 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. Pokies Vault leaves those fields empty.
Australian punters play this pokie in the browser at Here2Win Casino, stake in A$. No app is installed from Pokies Vault.
Book of Grimm is tagged Expanding Symbols. Those words are the only feature facts on the card.