Here2Win Casino · VoltEnt · Australia
Mystery Jack pokie on Pokies Vault
Australian punters can open the session page for Mystery Jack pokie apart from this catalogue.
On Pokies Vault, Mystery Jack is the VoltEnt pokie with a published RTP of 96.79% and a medium-volatility label. Australian punters open the session at Here2Win Casino. One arvo in Perth is not that sample.
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| Title | Studio | Published RTP | RTP delta | Volatility | Grid |
|---|---|---|---|---|---|
| Mystery Jack (this card) | VoltEnt | 96.79% | — | medium | 5×3 / 5×4 HTML5 video grid |
| Win And Replay · Highest RTP in VoltEnt | VoltEnt | 96.99% | +0.20% | medium | 5×3 / 5×4 HTML5 video grid |
| Arcade · Higher-volatility studio alternative | VoltEnt | 96.62% | -0.17% | high | 5×3 / 5×4 HTML5 video grid |
| MoonStone · Same mechanic (Bonus Rounds) | SmartSoft | 98.50% | +1.71% | medium-to-high | 5×3 / 5×4 HTML5 video grid |
| Magic Garden 10 · Same theme (Fruits) | SmartSoft | 98.90% | +2.11% | medium-to-high | 5×3 / 5×4 HTML5 video grid |
Detailed head-to-head matchups: Mystery Jack vs Space Spins · Mystery Jack vs Egypt's Book of Mystery · Win And Replay vs Mystery Jack · Mystery Garden vs Mystery Jack · All comparisons →
At Here2Win Casino
Mystery Jack is a VoltEnt pokie at Here2Win Casino. Pokies Vault keeps the Australian figures for it: studio, RTP when the card has one, and volatility. The button opens the game at Here2Win Casino.
Published figures & technical specs
- Studio
- VoltEnt (356 in this catalogue)
- Published RTP
- 96.79%
- RTP band
- 96.5% and above
- Volatility
- medium
- Hit ratio
- 21.19%
- Features
- Bonus Rounds and Mystery Symbols
- House edge
- 3.21%
- Vs studio avg RTP
- +0.62% vs 96.17% avg (#2/332)
- Spins per hit
- ~1 in 4.7 spins
- Reel grid
- 5×3 / 5×4 HTML5 video grid
- Pay structure
- Standard studio payline / ways structure
- RNG testing labs
- GLI, NMi
- Studio licences
- MGA, UKGC, AGCO (Ontario), Spelinspektionen, ONJN
- Platform
- HTML5 (Desktop, iOS & Android)
- Play at
- Here2Win Casino
- Stake
- A$
- Card updated
- 2026-10-29
The printed return is why this card is on the high RTP list.
Session math & RTP benchmark
At a published RTP of 96.79%, the theoretical house edge on Mystery Jack is 3.21% over a long-run sample. Across 332 RTP-published VoltEnt titles in this catalogue, the studio average is 96.17%, placing Mystery Jack at +0.62 percentage points (rank #2 of 332). Against the wider catalogue average of 95.80%, the delta is +0.99%. When sizing a session at Here2Win Casino in A$, keeping 150x–200x the unit stake covers normal variance swings.
| Session volume | Total turnover | Theoretical return | House margin | Est. winning spins |
|---|---|---|---|---|
| 100 spins (A$1/spin) | A$100 | A$96.79 | A$3.21 | ~21 (21.2%) |
| 250 spins (A$1/spin) | A$250 | A$241.97 | A$8.02 | ~53 (21.2%) |
| 500 spins (A$1/spin) | A$500 | A$483.95 | A$16.05 | ~106 (21.2%) |
Pros and cons
Pros
- The studio is named: VoltEnt.
- The play button stays on pokiesvault.com and then opens Here2Win Casino.
- The page keeps the studio figure 96.79% and does not round it.
- You can see the medium-volatility pace before you stake.
Cons
- This page is a catalogue. It does not hold an A$ balance.
- A match amount is not a fact of the Mystery Jack card.
The studio behind it
VoltEnt is the studio printed on Mystery Jack. Pokies Vault lists 356 of their pokies for Australia, and this is one of them. The rest sit on the provider page.
VoltEnt is the studio, and 12 Coins Grand Platinum Edition Santas Jackpots is the neighbour kept on the same page.
Studio certification & mechanics
VoltEnt (VoltEnt (formerly Wazdan)) is an iGaming studio founded in 2010 and headquartered in Valletta, Malta. Its random number generators (RNG) and math models are audited by GLI, NMi and certified across MGA, UKGC, AGCO (Ontario), Spelinspektionen, ONJN. Studio RTP policy: Fixed published RTP (~96.12%–96.22%) with player-selectable Volatility Levels.
In the Pokies Vault catalogue, VoltEnt accounts for 356 pokies, playable at Here2Win Casino. Across the 332 titles with a published return, the studio averages 96.17% RTP (spanning 94.13% to 96.99%, with 27 pokies at 96.5% or above). Signature studio mechanics include Hold the Jackpot, Cash Infinity, Sticky to Infinity, Adjustable Volatility Levels.
Technical layout for Mystery Jack: 5×3 / 5×4 HTML5 video grid paired with Standard studio payline / ways structure, running natively in HTML5 across desktop, iOS, and Android browsers at Here2Win Casino.
Mystery Symbols: Mystery symbols land in groups and transform simultaneously into the same randomly chosen pay symbol at the end of the spin.
What this pokie is
Pokies Vault files Mystery Jack as a record: studio VoltEnt, then the numbers the card actually has, then the door to Here2Win Casino. If a number is missing, the vault leaves the shelf empty.
Read this as a catalogue entry, not a tip. Mystery Jack still runs at Here2Win Casino, stake in A$, after the button on pokiesvault.com.
Mystery Jack is the VoltEnt pokie Pokies Vault writes up for punters who open it at Here2Win Casino. Nothing on this page is a second RTP invented for Australia.
How you open it
- Open Mystery Jack from the play button. The click stays on pokiesvault.com, then Here2Win Casino loads the pokie.
- Set the stake in A$ before the reels move. A smaller stake just makes a medium-volatility pokie last longer.
- Stop on a clock you set in Perth, not when the pokie 'looks due'.
Questions
Where do I open Mystery Jack if I am in Australia?
Yes. Pokies Vault links Mystery Jack to Here2Win Casino for Australian players. The button on this page stays on pokiesvault.com and then opens the pokie at Here2Win Casino.
What is the RTP of Mystery Jack?
The published RTP of Mystery Jack is 96.79%. That is a long-run studio figure. A single session in Perth can finish far from it.
What does the volatility label on Mystery Jack mean?
Mystery Jack is marked medium-volatility. On a medium-volatility pokie the balance usually moves in lumps, so the stake in A$ matters more than the theme.
Which studio built Mystery Jack?
VoltEnt is the studio named on the Mystery Jack card. Pokies Vault groups the rest of that studio on the provider page.
Where does the A$ stake actually go?
You are reading a catalogue page. Deposits, PayID and the spin itself belong to the Here2Win Casino account, not to pokiesvault.com.
Can I open Mystery Jack on a phone?
Punters in Perth mostly open Mystery Jack from a phone. Pokies Vault does not ship a separate app. The button hands the pokie to Here2Win Casino.
What currency is the stake on Mystery Jack?
You choose the A$ stake after Here2Win Casino loads Mystery Jack. This catalogue page never takes the money.
Is there a demo of Mystery Jack on this page?
No. Pokies Vault does not embed a demo of Mystery Jack. The button opens the pokie at Here2Win Casino. Any practice mode, if one exists, is inside that account, not on pokiesvault.com.
Does Pokies Vault score Mystery Jack?
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 Mystery Jack be due for a win?
No. Mystery Jack does not store the night you had in Perth, and it is not due. A published RTP describes a very long run of spins, not the next one.
Is Mystery Jack an 18+ game?
18+. Pokies Vault 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 Mystery Jack go?
The click stays on pokiesvault.com first, then opens Mystery Jack at Here2Win Casino. The partner address is not printed in the article.
Where are the other VoltEnt games?
Pokies Vault lists 356 pokies from VoltEnt for Australia. Mystery Jack is one of them. The provider page holds the rest.
Is Mystery Jack different in another Australian city?
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?
Pokies Vault will not print a match amount or a spin count for Mystery Jack. Those terms belong to the casino, and they change.
Is this the same machine I would find in a club?
No. Mystery Jack 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.
How do I stop a session on Mystery Jack?
Set an A$ limit and a clock before the first spin, then close the game when either one is reached. Mystery Jack will not close itself.
Is the hit ratio the same as the RTP?
Pokies Vault prints the hit ratio only because the card has one. It does not turn that percentage into a playing system.
What is the pros and cons block on Mystery Jack?
The block is a reading aid for Mystery Jack, 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.
What should I read before I open Mystery Jack?
Start with the short answer under the title, then the fact list. Both should agree: studio VoltEnt, and RTP only when the card has one. The pros and cons repeat that split in plain lines.
How do I open the right Mystery Jack?
This page is only Mystery Jack. The play button follows that name, not a shorter guess.
How many reels and paylines does Mystery Jack have?
The card does not publish a maximum win, a reel count, or a payline count. Pokies Vault does not guess them.
What features does the Mystery Jack card list?
Bonus Rounds and Mystery Symbols is the whole feature list for Mystery Jack. 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. Mystery Jack at Here2Win Casino is still only a session with an A$ stake.
Same pokie, different Saturday. Walk away while the stake in A$ is still a choice.
Dead or Alive 2 Feature Buy carries the same Wild West theme, and the studio is NetEnt.
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 rails are handled after you reach Here2Win Casino. pokiesvault.com does not take the deposit. This page never opens a cashier.
Who it suits
A medium-volatility pokie sits in the middle of the pack for pace. Mystery Jack is an ordinary session game at Here2Win Casino, not a system.
Filed under
Categories Video Slots
Features Bonus Rounds Mystery Symbols
Playing this pokie
Open the full name Mystery Jack in the Here2Win Casino lobby. A shorter search can load a different VoltEnt 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. 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.
Mystery Jack is tagged Bonus Rounds and Mystery Symbols. Those words are the only feature facts on the card.
21.19% is the hit ratio on this card. Read it as a long sample, not as the next spin at Here2Win Casino.