Mysterious Slot Review
Free demo, RTP, volatility and max win
8.0Value score · Very good · how it works
Mysterious review: Pragmatic Play's 2020 variable-reel slot with up to 4,096 ways, three character features, a free spins choice and 96.5% RTP.
- #842by RTP of 3,708 slots
- #980by value of 3,708 slots
- #48by value of 137 slots from 2020
Play Mysterious free: demo, no sign-up
Free play money from Pragmatic Play's official demo. 18+. No deposit and no account; a demo does not predict real results.
Basic information
| Software | Pragmatic Play |
|---|---|
| Release year | 2020 |
| RTP | 96.5% |
| Volatility | Not published |
| Max win | Not published |
| Hit frequency | Not published |
| Features | Free spins |
| Game type | Slot |
| Data verified | 2026-09-28 |
Source: Pragmatic Play game page; RTP database by toolsgambling.com (CC BY 4.0); image: Pragmatic Play promotional image from the official game page. How we collect data · Report a mistake
Mysterious review
Mysterious, from 2020, is a puzzle-themed Pragmatic Play slot with reels that change size, giving up to 4,096 ways to win. Three characters each bring a different feature, and the free spins let you choose your own style of round. The studio's text names these elements without full rules, so the description below stays close to what is actually published.
Variable reels and ways
Instead of fixed paylines, the reels vary in height and the number of ways to win changes from spin to spin, reaching 4,096 at most. More ways means more possible combinations on that spin. The exact grid dimensions and how the reel sizes are chosen are not given in our source.
The three characters
The studio links each feature to a figure from the story. The rules that govern when they appear are not public in the material we hold.
The Lord
Associated with multipliers, which the studio describes as something to collect during the hunt for this character. How large they are and how often they appear is not stated.
The Lady
Linked to Mystery Symbols, which the studio says can produce big wins when this character appears. What the mystery symbols turn into, and how many can land, is not spelled out in our source.
The Baron
Brings Infectious Wilds into play. The studio gives the feature a name but no definition, so how these wilds behave on the reels is best checked in the demo's own paytable.
Picking your free spins
At what the studio calls the fateful hour, the bonus offers a choice. One option features roaming wilds, the other offers multipliers of up to 12x. The trigger and the number of spins in each option are not published in our source. Choosing between moving wilds and a multiplier is, in practice, a choice between steadier help and a sharper but less predictable boost.
What the figures show
The game has a single RTP of 96.5%, so the house edge is 3.5%, or $35 lost per $1,000 played over a long stretch. One hundred $1 spins cost $3.50 on average, and the same number at $5 cost $17.50.
Volatility and maximum win are not published in our data.
The companion title Mysterious Egypt, also from 2020, shares the 96.5% RTP and is rated High. Christmas Carol Megaways from the same year lists 96.5% with a 20,000x cap. Other 2020 releases at 96.5% include 5 Lions Dance, Aztec Gems Deluxe and Cowboys Gold.
Pros
- Up to 4,096 ways on variable reels
- Choice of free spins: roaming wilds or multipliers up to 12x
- Three distinct character features
- Free official demo available
Cons
- Rules for the features are not published in our source
- No volatility rating or max win on record
Verdict
Mysterious offers variable reels with up to 4,096 ways, three character-driven features and a free spins choice between roaming wilds and multipliers up to 12x. Its RTP is 96.5%, but with no published volatility or maximum win, much about its risk profile is unknown. The free demo is the practical way to see how the features work. Plan around a 3.5% house edge.
Sources: Pragmatic Play official game page; RTP, volatility and max win from the open Slot RTP Database.
Mysterious series
1 other game of the same franchise by Pragmatic Play, oldest first.
Slots like Mysterious
Mysterious RTP
The data lists one RTP for Mysterious. Versions are not tracked for Pragmatic Play games, so other versions may exist; check the game's info screen.
- 96.5% $35 lost per $1,000
Cost of 100 spins
| Bet | Wagered | Average cost at 96.5% |
|---|---|---|
| $0.20 | $20 | $0.70 |
| $1 | $100 | $3.50 |
| $5 | $500 | $17.50 |
Averages computed from the published RTP; real sessions vary widely around them. RTP calculator
Mysterious max win, volatility & stats
- Value score
- 8.0 / 10
- Lost per $1,000 (average)
- $35
- Max win at $1 bet
- –
- Wins on average
- –
Percentiles compare this game with the 3,708 games in the catalogue. Max win: not published.
