Here2Win Casino · Greentube · Australia
Book of Stars card on Boomerang Pokies
Australian punters can open the session page for Book of Stars pokie apart from this catalogue.
On Boomerang Pokies, Book of Stars is the Greentube pokie Australian players launch through Here2Win Casino. Volatility is marked. A catalogue page is not a tip.
What this pokie is
Boomerang Pokies sends you out and back: read Book of Stars 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.
A normal session on Book of Stars is a run of spins with a stake you picked, not a plan to clear a bonus. Any match bonus lives on the Here2Win Casino side, not as a number invented on Boomerang Pokies. Read the offer there before you opt in.
Book of Stars is the Greentube pokie Boomerang Pokies writes up for punters who open it at Here2Win Casino. The card is the source of the figures.
The studio behind it
If you only needed the maker, it is Greentube. Boomerang Pokies does not swap the studio for a local name. The provider page is the clean list.
Gems of Giza shares a studio with this card, and so does Diamond Link Cops 'n' Robbers. Both are Greentube.
Studio certification & mechanics
Greentube (Novomatic AG Group) is an iGaming studio founded in 1998 and headquartered in Vienna, Austria. Its random number generators (RNG) and math models are audited by GLI, eCOGRA, TÜV Austria and certified across MGA, UKGC, AGCO (Ontario), ADM, DGOJ, GGL. Studio RTP policy: Standardised theoretical RTP profiles (~95.00%–95.50% classic mathematical model).
In the Boomerang Pokies catalogue, Greentube accounts for 419 pokies, playable at Here2Win Casino. Across the 135 titles with a published return, the studio averages 95.05% RTP (spanning 92.13% to 96.45%, with 0 pokies at 96.5% or above). Signature studio mechanics include Book-style Expanding Scatter, Lock & Spin, Twin Spinner, Gamble Ladder.
Technical layout for Book of Stars: 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.
Gamble Feature: The Gamble feature offers an optional post-win double-up or risk ladder round after standard base-game payouts.
At Here2Win Casino
Here2Win Casino is the casino on this card. Beside Book of Stars the provider page lists 419 other Greentube pokies, all played at Here2Win Casino.
Published figures & technical specs
- Studio
- Greentube (419 in this catalogue)
- Features
- Expanding Symbols and Gamble Feature
- Studio average RTP
- 95.05% (across 135 titles)
- Reel grid
- 5×3 classic video grid
- Pay structure
- 10 paylines
- RNG testing labs
- GLI, eCOGRA, TÜV Austria
- Studio licences
- MGA, UKGC, AGCO (Ontario), ADM, DGOJ, GGL
- Platform
- HTML5 (Desktop, iOS & Android)
- Play at
- Here2Win Casino
- Stake
- A$
- Card updated
- 2026-10-29
Session math & RTP benchmark
Book of Stars does not carry an individual published RTP on its source sheet, so no single-title percentage is guessed. Across the 135 Greentube titles that do publish a return in this catalogue, the studio average is 95.05% (ranging from 92.13% to 96.45%). 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$95.05 | A$4.95 | ~27–33 |
| 250 spins (A$1/spin) | A$250 | A$237.63 | A$12.38 | ~68–83 |
| 500 spins (A$1/spin) | A$500 | A$475.25 | A$24.75 | ~135–165 |
Pros and cons
Pros
- The studio is named: Greentube.
- The play button stays on boomerangpokies.com and then opens Here2Win Casino.
- Greentube has 419 pokies in this catalogue.
Cons
- Boomerang Pokies does not pay a win and does not take a deposit.
- No bonus figure is printed. Any offer sits inside Here2Win Casino and can change.
- No published RTP is on this card, so none is guessed.
- Volatility is not on the source card.
How this pokie compares
| Title | Studio | Published RTP | RTP delta | Volatility | Grid |
|---|---|---|---|---|---|
| Book of Stars (this card) | Greentube | — | — | — | 5×3 classic video grid |
| Jingle Jackpot · Highest RTP in Greentube | Greentube | 96.45% | — | medium | 5×3 / 5×4 HTML5 video grid |
| Eye of the dragon · Higher-volatility studio alternative | Greentube | 96.12% | — | high | 5×3 / 5×4 HTML5 video grid |
| Book of Bonanza · Same mechanic (Expanding Symbols) | SmartSoft | 97.60% | — | medium-to-high | 5×3 classic video grid |
Explore head-to-head comparisons → · Session bankroll calculator →
More from Greentube
Who it suits
This card does not carry a volatility mark, so Boomerang Pokies does not guess who Book of Stars suits. The studio is Greentube. The session still opens at Here2Win Casino.
How a session behaves
Coming back to Book of Stars later does not make it due. Keep the A$ stake where you left the rule.
A normal session on Book of Stars 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
Where do I open Book of Stars if I am in Australia?
Book of Stars 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 Stars?
The provider is Greentube. Other Greentube pokies on Boomerang Pokies sit on the same provider page if you want a neighbour title.
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 Stars on a phone?
Yes. The play button on boomerangpokies.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$.
Is Book of Stars staked in A$?
You choose the A$ stake after Here2Win Casino loads Book of Stars. This catalogue page never takes the money.
Is there a demo of Book of Stars on this page?
No. Boomerang Pokies does not embed a demo of Book of Stars. The button opens the pokie at Here2Win Casino. Any practice mode, if one exists, is inside that account, not on boomerangpokies.com.
Why is there no star rating for Book of Stars?
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 Stars be due for a win?
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.
Is Book of Stars an 18+ game?
The page is written for adults in Australia. Gambling can harm. Stop when the session stops being a choice.
Where does the click on Book of Stars go?
Boomerang Pokies records the page you were on and sends you to Here2Win Casino with Australia already on the trail.
Where are the other Greentube games?
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 Sydney?
No. Sydney is named because readers are there. It is not a setting inside Book of Stars, and it does not change the RTP.
Does this page list a welcome offer?
No figure is invented here. If Here2Win Casino shows a welcome offer, it shows it inside the account, with its own terms. Read them there before you opt in.
Is this the same machine I would find in a club?
No. Book of Stars 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.
When should I close Book of Stars?
A normal stop is the one you decided in advance. Do not wait for the pokie to look due.
Can you estimate the RTP of Book of Stars?
The source card did not include a published RTP, so this page leaves the gap empty. Boomerang Pokies will not copy a figure from a similar Greentube pokie.
Why does Book of Stars have a pros and cons list?
The block is a reading aid for Book of Stars, not a rating. Pros are facts on the card or about the catalogue. Cons are the gaps and the limits, including that this page is not the cashier.
Which part of the Book of Stars page is the preview?
Start with the short answer under the title, then the fact list. Both should agree: studio Greentube, and RTP only when the card has one. The pros and cons repeat that split in plain lines.
How do I open the right Book of Stars?
This page is only Book of Stars. The play button follows that name, not a shorter guess.
How many reels and paylines does Book of Stars have?
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 Stars?
Expanding Symbols and Gamble Feature is the whole feature list for Book of Stars. 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 Stars at Here2Win Casino. Funding the account is a separate step from reading Boomerang Pokies.
How you open it
- Open Book of Stars 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 Sydney, not when the pokie 'looks due'.
Filed under
Features Expanding Symbols Gamble Feature
Playing this pokie
Open the full name Book of Stars in the Here2Win Casino lobby. This page is only the Book of Stars 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$. boomerangpokies.com does not host the reels.
Feature labels on this card: Expanding Symbols and Gamble Feature. Boomerang Pokies does not add a jackpot figure or a bonus amount on top of those names.