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Mystery Joker slot by Play'n GO

Mystery Joker Slot Review

Free demo, RTP, volatility and max win

8.4Value score · Very good · how it works

Mystery Joker review: Play'n GO's 2014 three-reel slot with free spins and a mystery prize. RTP ranges from 96.98% down to 83.99% across five versions.

  • #4by value of 368 Play'n GO slots
  • #181by RTP of 3,708 slots
  • #2by value of 31 slots from 2014

Play Mystery Joker free: demo, no sign-up

Free play money from Play'n GO's official demo. 18+. No deposit and no account; a demo does not predict real results.

Mystery Joker · Play'n GO official demo

Basic information

Mystery Joker basic information
SoftwarePlay'n GO
Release year2014
ThemeJoker slots
RTP96.98% | 93.99% | 90.98% | 86.98% | 83.99%
VolatilityMedium
Max winNot published
Hit frequencyNot published
FeaturesFree spins
Game typeSlot
Data verified2026-09-28

Source: Play'n GO game page; RTP database by toolsgambling.com (CC BY 4.0); image: Play'n GO promotional image from the official game page. How we collect data · Report a mistake

Mystery Joker review

The single most important fact about Mystery Joker is not on the reels. Play'n GO's three-reel game from 2014 exists in five RTP versions, from 96.98% at the top to 83.99% at the bottom, and which one a site runs changes the cost of play more than any feature does. The game itself is simple: the Joker's hat is the scatter, free spins can end in a mystery prize, and volatility is Medium.

Five versions, very different costs

At the best setting of 96.98%, the house edge is 3.02%, or about $30.20 kept per $1,000 wagered. The other versions are 93.99% (6.01% edge, $60.10), 90.98% (9.02% edge, $90.20), 86.98% (13.02% edge, $130.20) and 83.99% (16.01% edge, $160.10). The lowest version costs over five times as much as the highest for the same play.

Over 100 spins at $1, the expected cost is $3.02 at 96.98% but $16.01 at 83.99%. At $5 the gap widens to $15.10 against $80.05, and at $0.20 it is $0.60 against $3.20. With a spread that wide, confirming which version is active matters before the first spin.

A three-reel game with a twist

Play'n GO pitches it as suitable for newcomers and long-time players alike. The studio's page describes three reels and a scatter in the shape of the Joker's hat. Three scatters unlock free spins, and during the round a mystery prize can be won. Landing two or three scatters inside the round adds more free spins.

The page does not say how many free spins are awarded, what the mystery prize can be worth or how wins are counted on the reels. No max win is published either. The character's name, the studio explains, comes from the fact that nobody knows what he looks like.

The 6000 edition and relatives

Mystery Joker 6000, from 2017, lists a 94.21% RTP and High volatility, so it is the swingier and costlier relative. Xmas Joker from 2015 shares the 96.98% top RTP and Medium rating. Gold Trophy 2 and Pearls of India, both from 2014, list 96.88% and 96.87%. Gemix, Enchanted Crystals and Golden Ticket, also 2014 releases rated Medium, list 96.83%, 96.72% and 96.69%.

Who should play it

A good fit for anyone who prefers a short rulebook and moderate swings, provided the 96.98% version is the one on offer. On a low-RTP version the same game becomes an expensive way to spend time. The free demo lets you see the free spins and the mystery prize without staking money.

Pros

  • Simple three-reel design with free spins that can be extended
  • Medium volatility
  • Free official demo available

Cons

  • Five RTP versions, the lowest at 83.99% with a 16.01% house edge
  • No max win published
  • Free spins count and mystery prize values are not described

Verdict

Mystery Joker is a simple three-reel game with Medium volatility, a scatter-triggered free spins round and a mystery prize. At its 96.98% setting the house edge is 3.02%, but the same game can run at 83.99%, where the house edge is more than five times higher. Confirm which version is running before you spin, and treat it as paid entertainment.

Sources: Play'n GO official game page; RTP, volatility and max win from the open Slot RTP Database.

Mystery Joker series

1 other game of the same franchise by Play'n GO, oldest first.

Mystery Joker 6000Play'n GO · RTP 94.21%

Slots like Mystery Joker

Xmas JokerPlay'n GO · RTP 96.98%
Fire JokerPlay'n GO · RTP 96.15%
Chronos JokerPlay'n GO · RTP 96.54%
Ice JokerPlay'n GO · RTP 96.23%
Joker's Luck GemsSkywind · RTP 96.5%
Soccer JokerSkywind · RTP 96.5%

Mystery Joker RTP versions

5 RTP versions of Mystery Joker are recorded. Casinos choose which one to run, so the number you get depends on where you play. Each bar shows what that version keeps on average per $1,000 wagered.

  • 96.98%Highest $30.20 lost per $1,000
  • 93.99% $60.10 lost per $1,000
  • 90.98% $90.20 lost per $1,000
  • 86.98% $130.20 lost per $1,000
  • 83.99%Lowest $160.10 lost per $1,000

Cost of 100 spins

Expected cost of 100 spins
BetWageredAverage cost at 96.98%At 83.99%
$0.20$20$0.60$3.20
$1$100$3.02$16.01
$5$500$15.10$80.05

Averages computed from the published RTP; real sessions vary widely around them. RTP calculator

Mystery Joker max win, volatility & stats

Headline RTP vs all slotshigher than 95%
Lowest recorded RTP vs all slotshigher than 0%
RTP among Play'n GO games#3 of 368
Value score
8.4 / 10
Lost per $1,000 (average)
$30.20
Max win at $1 bet
–
Wins on average
–

Percentiles compare this game with the 3,708 games in the catalogue. Max win: not published.

More from Play'n GO

All Play'n GO slots

Rage to RichesPlay'n GO · RTP 97.12%
Jolly RogerPlay'n GO · RTP 97%
Mystery Egg SurprisePlay'n GO · RTP 96.98%
Wildhound DerbyPlay'n GO · RTP 96.93%
Fortunes of Ali BabaPlay'n GO · RTP 96.89%
Gold Trophy 2Play'n GO · RTP 96.88%

Mystery Joker Slot FAQ

What is the RTP of Mystery Joker?
There are five versions: 96.98%, 93.99%, 90.98%, 86.98% and 83.99%. The house edge ranges from 3.02% to 16.01%.
How do the free spins in Mystery Joker work?
Three Joker's hat scatters unlock free spins, where a mystery prize can be won. Two or three scatters during the round add more spins.
What is the max win on Mystery Joker?
Play'n GO does not publish a max win for this game in our data.
Is there a Mystery Joker demo?
Yes, the studio offers a free demo with virtual credits.
Is Mystery Joker high or low volatility?
Play'n GO publishes it as medium volatility: a balance between win frequency and win size.
Is there a best time to play Mystery Joker?
No. Every spin is decided by a certified random number generator and is independent of the time, the day and earlier spins. The 96.98% RTP is a long-run average, not a schedule.
Who makes Mystery Joker?
Mystery Joker is made by Play'n GO and was released in 2014. Every Play'n GO game in the catalogue is listed on the studio’s page.
How much does Mystery Joker cost per $1,000 wagered?
On average about $30 at 96.98% RTP and about $160 at the lowest version (83.99%). This is a long-run average, not a prediction for a session.
Where does the data on Mystery Joker come from?
The RTP, volatility, max win and release details come from the Slot RTP Database by toolsgambling.com (CC BY 4.0), which links each row to the studio’s own page. It was last verified on 2026-09-28.