Here2Win Casino · SYNOT Games · Australia
Wallaby Slots entry for Book of Secrets Extra
Australian punters can open the session page for Book of Secrets Extra pokie apart from this catalogue.
Wallaby Slots files Book of Secrets Extra as a SYNOT Games pokie for Australia and sends the session to Here2Win Casino. Volatility is the figure that is actually marked:.
Filed under
Features Expanding Symbols
Published figures & technical specs
- Studio
- SYNOT Games (168 in this catalogue)
- Features
- Expanding Symbols
- Studio average RTP
- 95.99% (across 17 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
- 2026-11-04
Book of Secrets Extra RTP (studio benchmark), house edge & 500-spin session math
Book of Secrets Extra by SYNOT Games benchmarks against the verified 95.99% studio average RTP (4.01% house margin across 17 titles) and suits a 200x–250x stake buffer in A$ at Here2Win Casino (here2win.netlify.app).
Book of Secrets Extra does not carry a standalone RTP on its source sheet, so Wallaby Slots cites the verified studio distribution instead of guessing. The pokie runs on a 5×3 classic video grid layout, and its variance profile fits a 200x–250x unit-stake reserve when playing Book of Secrets Extra in A$ at Here2Win Casino (here2win.netlify.app).
| Session volume & entity | Total turnover | Theoretical return | House margin | Est. winning spins |
|---|---|---|---|---|
| 100 spins on Book of Secrets Extra (A$1/spin @ 95.99% RTP) | A$100 | A$95.99 | A$4.01 | ~27–33 |
| 250 spins on Book of Secrets Extra (A$1/spin @ 95.99% RTP) | A$250 | A$239.97 | A$10.03 | ~68–83 |
| 500 spins on Book of Secrets Extra (A$1/spin @ 95.99% RTP) | A$500 | A$479.95 | A$20.05 | ~135–165 |
Pros and cons
Pros
- The studio is named: SYNOT Games.
- The play button stays on wallabyslots.com and then opens Here2Win Casino.
- The rest of SYNOT Games is one provider page away.
Cons
- This page is a catalogue. It does not hold an A$ balance.
- 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.
At Here2Win Casino
Here2Win Casino is the casino on this card. Beside Book of Secrets Extra the provider page lists 168 other SYNOT Games pokies, all played at Here2Win Casino.
What this pokie is
The host is called Wallaby Slots. The copy still says pokie, because this catalogue is the Australian one. Book of Secrets Extra by SYNOT Games opens at Here2Win Casino.
A fair session on Book of Secrets Extra 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 Wallaby Slots. If you do not want a bonus, do not tick it.
Wallaby Slots names the game and stops there. Book of Secrets Extra still runs at Here2Win Casino, stake in A$, after the button on wallabyslots.com.
Two more SYNOT Games pokies in this catalogue are Pirate's Run and Lucky 77.
Stake and the cashier
Whatever the domain name says, the cashier is Here2Win Casino. PayID is named here so the geo is obvious, and it is taken there.
The A$ stake is chosen inside Book of Secrets Extra at Here2Win Casino. A catalogue can name PayID and still not run PayID.
Book of Secrets Extra technical specs, SYNOT Games RNG audit & myth-busting rules
Book of Secrets Extra is engineered by SYNOT Games on a 5×3 classic video grid (10 paylines) architecture with independent RNG certification from Independent RNG & math verification (GLI / iTech Labs / BMM Testlabs standards) under Certified RNG for regulated international casino markets regulatory frameworks.
SYNOT Games (SYNOT Games Studio) is an iGaming studio headquartered in International iGaming Studio. Its random number generators (RNG) and math sheets 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 Wallaby Slots catalogue, SYNOT Games accounts for 168 pokies, playable at Here2Win Casino (here2win.netlify.app). Across the 17 titles with a published return, the studio averages 95.99% RTP (spanning 95.90% to 96.05%, with 0 pokies at 96.5% or above). Signature studio mechanics include HTML5 video slot math, mobile-first reel layouts, and bonus feature triggers.
Expanding Symbols: Expanding symbol mechanics select one or more pay symbols that stretch vertically to cover the full reel when enough instances land.
Book of Secrets Extra vs SYNOT Games average & peer pokie comparison
Compared against direct studio and mechanic peers, Book of Secrets Extra (studio benchmark) benchmarks directly against Ballad of Bardolomew (96.05%, SYNOT Games) across its 5×3 classic video grid layout at Here2Win Casino (here2win.netlify.app).
| Title & spec anchor | Studio | Published RTP | Delta vs Book of Secrets Extra | Volatility | Grid |
|---|---|---|---|---|---|
| Book of Secrets Extra (this card) | SYNOT Games | — | — | — | 5×3 classic video grid |
| Ballad of Bardolomew 96.05% RTP pokie · Highest RTP in SYNOT Games vs Book of Secrets Extra | SYNOT Games | 96.05% | — | — | 5×3 / 5×4 HTML5 video grid |
| Rise of Coins 96.00% RTP medium-to-high pokie · Higher-volatility studio alternative vs Book of Secrets Extra | SYNOT Games | 96.00% | — | medium-to-high | 5×3 / 5×4 HTML5 video grid |
| Book of Bonanza 97.60% RTP medium-to-high pokie · Same mechanic (Expanding Symbols) vs Book of Secrets Extra | SmartSoft | 97.60% | — | medium-to-high | 5×3 classic video grid |
- Alongside Book of Secrets Extra (studio benchmark), review the Ballad of Bardolomew 96.05% SYNOT Games pokie card available at Here2Win Casino.
- Alongside Book of Secrets Extra (studio benchmark), review the Rise of Coins 96.00% SYNOT Games pokie card available at Here2Win Casino.
- Benchmark any two releases in the head-to-head pokie RTP and volatility comparator or run the A$ session bankroll and stake calculator.
More from SYNOT Games
Questions
Does Here2Win Casino list Book of Secrets Extra for Australian punters?
Yes. Wallaby Slots links Book of Secrets Extra to Here2Win Casino for Australian players. The button on this page stays on wallabyslots.com and then opens the pokie at Here2Win Casino.
Which studio built Book of Secrets Extra?
SYNOT Games is the studio named on the Book of Secrets Extra card. Wallaby Slots 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 wallabyslots.com.
Does Book of Secrets Extra work on mobile in Australia?
Punters in Adelaide mostly open Book of Secrets Extra from a phone. Wallaby Slots does not ship a separate app. The button hands the pokie to Here2Win Casino.
What currency is the stake on Book of Secrets Extra?
You choose the A$ stake after Here2Win Casino loads Book of Secrets Extra. This catalogue page never takes the money.
Can I try Book of Secrets Extra here without an account?
No. Wallaby Slots does not embed a demo of Book of Secrets Extra. The button opens the pokie at Here2Win Casino. Any practice mode, if one exists, is inside that account, not on wallabyslots.com.
Why is there no star rating for Book of Secrets Extra?
Book of Secrets Extra is not ranked against other pokies on Wallaby Slots. Use the figures on the card, not a badge.
Can Book of Secrets Extra be due for a win?
No. Book of Secrets Extra 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.
How old do I have to be to play Book of Secrets Extra?
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?
The click stays on wallabyslots.com first, then opens Book of Secrets Extra at Here2Win Casino. The partner address is not printed in the article.
Where are the other SYNOT Games games?
Wallaby Slots lists 168 pokies from SYNOT Games for Australia. Book of Secrets Extra is one of them. The provider page holds the rest.
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?
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 Book of Secrets Extra a club or pub pokie?
No. Book of Secrets Extra on Wallaby Slots 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 Secrets Extra?
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 Secrets Extra?
No estimate is offered. An invented RTP would make the catalogue worse. The studio is still SYNOT Games, and play is still at Here2Win Casino.
Why does Book of Secrets Extra have a pros and cons list?
The block is a reading aid for Book of Secrets Extra, 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 Secrets Extra page is the preview?
Start with the short answer under the title, then the fact list. Both should agree: studio SYNOT Games, 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 Secrets Extra?
This page is only Book of Secrets Extra. The play button follows that name, not a shorter guess.
How many reels and paylines does Book of Secrets Extra 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 Secrets Extra?
The labels are Expanding Symbols. They are names only. This page does not add a bonus amount, a free-spin count, or a jackpot figure.
The studio behind it
If you only needed the maker, it is SYNOT Games. Here2Win Casino does not rebadge the game. The provider page is the clean list.
How a session behaves
The stake rule is the same anyway. Small A$ stake, fixed stop, then Book of Secrets Extra.
Same pokie, different Saturday. Walk away while the stake in A$ is still a choice.
Who it suits
This card does not carry a volatility mark, so Wallaby Slots does not guess who Book of Secrets Extra suits. The studio is SYNOT Games. The session still opens at Here2Win Casino.
How to play Book of Secrets Extra at Here2Win Casino: 7-step session protocol
- Check the verified Book of Secrets Extra return (95.99%) and SYNOT Games 5×3 classic video grid layout on this Wallaby Slots specification card.
- Size your A$ session bankroll at 200x–250x your base spin stake using the interactive 100/250/500-spin calculator above.
- Open Here2Win Casino (here2win.netlify.app) and locate Book of Secrets Extra using the SYNOT Games studio filter or instant search bar.
- Launch Book of Secrets Extra and open the in-game help sheet ("?" or "i" icon) to verify the active paytable, feature rules, and printed RTP.
- Select your unit spin stake in A$ (such as A$0.20–A$1.00) so your session balance comfortably covers 200 to 300 spins.
- Lock in a session timer and stop-loss limit at Here2Win Casino prior to spinning, keeping stake size flat through normal variance swings.
- Complete account KYC verification at Here2Win Casino early and use the same verified PayID rail for seamless A$ withdrawals.
Playing this pokie
Open the full name Book of Secrets Extra in the Here2Win Casino lobby. A shorter search can load a different SYNOT Games title.
The card does not publish a maximum win, a reel count, a payline count, a count of free spins, or a bonus-buy price. Wallaby Slots leaves those fields empty.
Australian punters play this pokie in the browser at Here2Win Casino, stake in A$. wallabyslots.com does not host the reels.
Feature labels on this card: Expanding Symbols. A label is a name, not a price and not a description of the round.