Pragmatic Play’s Mysterious Slot Review

Mysterious is a Pragmatic Play slot that is played on a 4x4 grid and has 256 ways to win. Playable from 10p to £100 per spin, it comes with an RTP of 96.5%. There are 3 random spin features as well as 2 free spins features – the highlight being roaming wilds and multipliers up to 12x.

Where to Play Pragmatic Play’s Mysterious Slot


up to £50


Extra Spins



T&C Apply

18+. New customers only. Min £10 dep. Neteller/Skrill excl. Max. bonus £50. Wagering 40x within 30 days. Max. bet: £5. Spins paid 10/day on Book of Dead. Game weighting and T&Cs apply.


up to £200


Free Spins



T&C Apply

18+. New players, £10+ deposits, no e-wallets / prepaid cards, 30x Playthrough on Bonus and 50x on Free Spins. T&Cs Apply


up to £60




Virtual Reality

T&C Apply

18+. New UK customers only. 200% deposit bonus up to £60. Must use bonus code “OSUK200” upon registration to receive the bonus. Min deposit £20 and 48x wagering requirements apply on bonus (game weighting applies). £3 max bet applies when playing with an active bonus. Bonus expires if not claimed within 7 days. T’s and c’s apply. Please gamble responsibly,

Mysterious Theme/Symbols

The Mysterious slot game has a haunted feel to it – with a Victorian theme, you are taken to a street at night-time where you’ll see a creepy castle up in the hills. With a cloud filled sky and lightning striking as you spin the reels, symbols include low value clovers, diamonds, hearts and spades.

Then you have 4 animal faces – you have a bull, lion, owl and ram, all with a sinister look. The most rewarding symbol is the Mysterious logo symbol which pays 2.5, 5, 10 or 25 times your stake for 3, 4, 5 or 6 in combination. Being a 256 ways to win slot, you can form winning combinations by getting matching symbols from left to right on adjacent reels.

3 Random Spin feature

Mysterious comes with 3 wild symbols. In the base game, on any spin, 1 of the 3 random spin features can be triggered randomly. They are based on the game’s 3 characters, the Lord, Lady and Baron:

  • The Lord feature – the Lord symbol is wild and replaces all symbols bar the other 2 wilds and the free spins scatter. Lord Wild symbols that form part of a win will give you a random multiplier of 2x or 3x. If you get more than 1 Lord Wild, the values are multiplied – i.e. a 2x and 3x wild will result in a 6x wild multiplier.
  • The Lady feature – the Lady symbol is wild and substitutes for all symbols except the 2 other wilds and the free spins scatter. The Lady Wild can expand to reveal a mystery stacked symbol that will lead to new winning combinations.
  • The Baron feature - the Baron symbol is and replaces all symbols except the free spins scatter and 2 other wilds. The Baron Wilds infect nearby symbols vertically by transforming them into wilds.

Free Spins features

Mysterious comes with 2 free spins features. These are accessed when you hit 3 or more free spins scatter symbols anywhere on the reels. The reel layout changes to give you 6 reels and 4,096 ways to win. You will get 8 or 12 free spins for 3 or 4 scatters respectively. You then choose from the 2 following options:

  • Locking Multiplier Free Spins feature – look out for clock symbols that land on the reels as these will give you a random win multiplier of 3x, 6x, 9x or 12x. 2 clock symbols landing will add 2 more free spins to your tally with the multiplier locked.
  • Resurrecting Roaming Wilds Free Spins feature – any wild symbols that land will fade away after each free spin. They will then roam the reels and can appear at the end of any free spin randomly if more new wilds land on the reels.

Mysterious thoughts

The Mysterious slot definitely looks good – the haunted feel is superb and adds to the excitement and anticipation. It’s all about the various wilds which can randomly give you multipliers, stacked symbols and extra wilds in the base game.

Of the 2 free spins features, I would opt for the Locking Multiplier Free Spins feature as win multipliers of up to 12x can be applied on each free spin technically. Variance wise, it’s medium to high – the RTP is 96.5% which is also on the higher side.

When it comes to payouts, the bigger wins will come in the Locking Multiplier Free Spins feature for obvious reasons – the most you can win is 9,648 x your stake on each free spin with the potential 12x multiplier.

Mysterious Slot Information

  • Game:
  • Software:
    Pragmatic Play
  • Type:
    Video Slot
  • Reels:
  • Paylines:
  • Total Coins:
  • Coins Range:
    0.10 to 100.00
  • Jackpot:
  • Bonus Round:
    Yes (5)
  • Free Spins/Multiplier:
Review by Chris Taylor

Review by Chris Taylor

Chris is a slots expert that has reviewed and played over 4,000 online slots. Having being in the iGaming industry for over 16 years, he knows how slots work, how bonus features are triggered and how the RTP and variance affect the gameplay.