Mysterious Slot Review

Mysterious is a Victorian slot with a horror theme of a haunted city from the past. It includes a variety of boosters and extra features. The game's superb graphics and soundtrack will immerse you in its unique atmosphere.

Mysterious Slot Demo

Mysterious Overview


Mysterious was released on the 20th of February 2020 by Pragmatic Play. It includes 3 random features in the base game and 2 free spins modes. The grid expands from 4×4 in the main game to 4×6 during free spins. This allows you to win from 243 to 4,096 ways from adjacently matching symbols. Mysterious is unique and inspiring, so don’t miss it.

Available on:






Game Type:

Video Slot

Mysterious Details

  • Bonus Game:
  • Yes
  • Rating:
  • 9.36
  • Progressive:
  • No
  • Paylines:
  • 243 ways to win
  • Wild Symbol:
  • Yes
  • Reels:
  • 6
  • Scatter Symbol:
  • Yes
  • Autoplay Option:
  • Yes
  • Multiplier:
  • Yes
  • Min Coins Size:
  • 0.10
  • Free Spins:
  • Yes
  • Max Coins Size:
  • 100.00
  • Jackpot:
  • £ 964.800

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About Mysterious Slot

The game has 4 reels and 4 rows. It uses the adjacently matching symbols payout system instead of pay-lines. You will relish in 256 ways to win in the base game from the 4×4 setup. During free spins, the grid changes to 6 reels with 4 symbols on each (4×6), which offers 4,096 ways to win. Play with 10p to £100 per spin. Mysterious is a slot with high volatility and an RTP of 96.5%.

You can relish in 3 Random Spin Features – the Lord, Lady and Baron Wilds. They include multipliers, stacked mystery symbols and adjacently positioned extra wild symbols. The free spins have two modes to choose from. These are the Locking Multiplier Free Spins and Resurrecting Roaming Wilds Free Spins. The max win per spin in the game is £964,800 – 9,648 times your stake.

Mysterious Design

The game has a Victorian theme and its design reflects this. The grid stands in front of a haunted Victorian city. There are buildings on both its sides and a mist in the sky, which is full of dark clouds. On the left top of the screen, you can see a magnificent castle. The grid is heavily embellished with brown wooden ornaments. The game logo is displayed in golden on its top centre. On the left are positioned the 3 main characters in grey. The active one becomes colourful once their feature has been triggered.

The low-value symbols include card suits made of orange, green, red and blue jewels. These are in the form of diamonds, clubs, hearts and spades. The 4 appear on grey background with a lot of ornaments. The premiums include 4 animals with an ominous look. There is a purple bull, copper-coloured ram, grey owl with yellow eyes and a golden lion. These appear embossed and are very detailed.

There is a golden game logo with plenty of golden ornaments. The 3 special wilds are for the 3 characters – the Lord, Lay and Baron. They are also embellished with golden grames and the word “WILD” itself in golden. The scatter is a heavily ornamented light blue icon. A golden clock will appear on one of the free spins modes and there is wild with golden embroidered frame. The soundtrack is creepy with wind blowing, bells ringing and distant noises. The music is melodic and suitable for the theme. The graphics are superb and look impressive in a distinct Victorian style.

Mysterious Gameplay

The symbols include 4 animal faces that look sinister along with the game logo are the premiums. There are also 4 card suits at the low end. The special symbols are 4 different wild icons, one scatter and a clock multiplier. The wilds include a standard one and 3 that trigger their respective feature.

The yellow-orange diamonds and green clubs card suits pay equally – 4, 5 and 6 symbols give you 0.50, 1 and 2 times your stake. The red hearts and blue spades return 0.50x, 1.50x and 2.50x stake for 4, 5 and 6 symbols on adjacent positions.

The premiums include a purple bull with a payout of 0.50, 1, 2 and 3 times your stake for 3, 4, 5 and 6 symbols. Next in value is the ram in copper colour. Land 3, 4, 5 or 6 of it to win 0.50, 1.50, 3 or 5 times your bet respectively. The owl is third in payout and 3, 4, 5 and 6 of this symbol pay 1, 2, 4 and 6 times your stake.

The lion is second in value and 3, 4, 5 and 6 lions return 1, 2.50, 5 and 10 times your stake. The most rewarding symbol of all is the Mysterious game logo with golden ornaments. Land 3, 4, 5 or 6 symbols of it on adjacent positions from left to right to win 2.50, 5, 10 or 25 times your stake respectively.

To win in the game, you need to match 3 of the premiums and 4 of the card suits or more in a spin. They must be on adjoining positions from left to right and ensure up to 256 ways in the base game and 4,096 ways in free spins. Besides the mentioned symbols, there are 6 other ones with. They have special functions and trigger their respective features.

Mysterious Features & Bonuses

To the left of the grid, you can see the 3 main characters. They have their respective wild symbols, which trigger an extra feature. On any spin during the base game, one of the 3 Random Spin Features with unique boosters can trigger by chance. These are:

  • The Lord – the Lord Wild symbol substitutes for all other symbols. It won’t play for only the 2 special wilds and scatters. When the Lord Wild takes part of a winning combination, it reveals a random multiplier of 2x or 3x. The latter is applied to the win. If you land more of these wild symbols and they take part in the same win, they multiply their values. This ensures you massive wins. The Lord Wild symbol appears only on reels 2, 3 and 4 in the base game.
  • The Lady – the Lady Wild symbol substitutes for all other ones. Exceptions are the other 2 special wilds and scatter. After taking part in a winning combination, this symbol may expand. Then it reveals a mystery stacked symbol, which can create new winning combinations. You can see the Lady Wild symbol only on reels 2, 3 and 4 in the main game.
  • The Baron – the Baron Wild substitutes for all other symbols. Exceptions are the other 2 special wilds and scatter. This symbol may infect adjacently positioned vertically of itself symbols. When this happens, it turns them into wilds. As a result, you have increased chances for creating more winning combinations. You can see the Baron Wild symbol on reels 2, 3 and 4 in the base game only.

Besides the three random features in the base game, you can hit 3 scatter of the blue ‘FREE SPINS’ icons in a spin. This triggers the Free Spins as follows:

  • 3 scatters = 8 free spins
  • 4 scatters = 12 free spins

At the start of these rounds, the grid will expand and change to 6 reels with 4 rows on each. The 4×6 format will ensure you 4,096 ways to win instead of 256 in the base game. Before the rounds start, you need to choose one of these two options:

  • Locking Multiplier Free Spins – During them, a special golden clock symbol may land on the reels. If this happens, it awards a random multiplier of 3x, 6x, 9x or 12x. Its value is applied to the total win for that spin. If you land 2 clock symbols in one spin, you will win 3 extra free spins, which start immediately. During them, the multipliers of the clock symbol will become locked in place. The golden clock symbol appears on reels 1 and 6 only. It and a normal wild symbol can land during the Locking Multiplier Free Spins.
  • Resurrecting Roaming Wilds Free Spins – any wild symbol landed on the reels during these rounds fades away after each spin. It also roams the reels. The roaming wild can return to reels 2, 3, 4 or 5 at the end of any spin in case more wild symbols hit on the screen.

The Conclusion

Mysterious offers a lot of extra features and ways to score wins both in the base game and free spins. Players have the freedom to choose their free spins mode from 2 options and relish in constant wins. The diversity of modifiers and increased win ways in the bonus rounds grant abundant prizes. With a haunted place and Victorian style, the slot is thrilling and unpredictable. It is available for free and for real play. We highly recommend you try it!

Mysterious Theme

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Casino review by


Date: 8 October,2020

Hey there, I'm George, an old-school slots enthusiast and gambling expert. I've been passionate about slots, poker, and online casinos for years, and I love sharing my knowledge with others. Whether you're a seasoned player or just starting out, I'm here to help you with any gambling-related questions you may have. So, feel free to reach out to me anytime!