Powered by Pragmatic Play, Mysterious is a 4-reel, 4-row video slot with 256 ways to win. Playable across all devices, the game can be enjoyed from just 10p per spin on your desktop, smartphone or tablet. With a Victorian theme, Mysterious will transport you to a low-lit street in the dead of night. There are three random spins features up for grabs as well as two free spins features – equipped with multipliers up to 12x and the roaming wilds. Want to know more about this spooky slot and its features? Sit back and enjoy our Mysterious slot review.

Theme and Appearance

Mysterious has a spooky feel to it – with a Victorian theme, you are transported to a dingy street at night-time where you'll see a haunted castle up on the hillside. Throughout the game, the clouds move through the sky and lightning strikes, lighting up the screen as you spin the reels. You'll hear spooky sound effects and a mysterious backing track as you move through the slot, adding to the haunted vibe of the game. On the reels, you'll see stylised clovers, hearts, diamonds and spades as the low payers. For the high-payers, you'll see four sinister-looking animal faces – a bull, owl, lion and a ram. The most rewarding symbol is the Mysterious logo, which pays 2.5, 5, 10 or 25 times your stake for 3, 4, 5 or 6 on a payline. As there are 256 ways to win, combinations can be formed by matching symbols from left to right on adjacent reels.

Betting and Prizes

Depending on your bankroll and preference, you can play Mysterious from anywhere between 10p to £100 per spin. In terms of prizes, the maximum payout is more than 20,000x your total stake, which could result in a mammoth win when playing with the top wager. Up to 12x multipliers are available throughout the game, along with 4096 ways to win during the bonus games. Volatility-wise, the game is rated 5 out of 5 by Pragmatic Play, putting it firmly in the 'high' category. However, the RTP is set at a decent 96.50%, so the return will always be fair.

Slot Features

Like most slots, Mysterious comes with various bonus features including 3 Random Spins features and a Free Spins round. Below, we explore these in more detail.

3 Random Spin Feature

The slot comes with 3 wild symbols based on three Mysterious characters – the Lord, Lady and the Baron. During the base game, 1 of the 3 features can be triggered at random.

The Lord feature – The Lord wild replaces all symbols bar the scatter and other 2 wilds. When used to form a winning combo, the wild will provide a random multiplier of 2 or 3x. If you land more than 1 wild, the values are multiplied for jaw-dropping prizes.

The Lady feature – The Lady wild substitutes for all other symbols except the scatter and the 2 other wild symbols. This wild can expand to reveal a mystery stacked symbol that can lead to new winning combos.

The Baron feature - Finally, you've got the Baron wild, who replaces all symbols bar the other 2 wilds and the free spins scatter. The Baron wild changes nearby symbols into wilds for more chances to win.

Free Spins Features

The game comes with two Free Spins features. There are triggered when you land three or more scatter symbols anywhere on the grid. When you do, the reel setup changes to 6 reels with 4096 ways to win. Depending on the number of triggering symbols, you'll start the round with 8 or 12 free spins. During the round, you can choose one of the following features to become active.

Locking Multiplier Free Spins feature – whenever a clock symbol lands on the reels, a random multiplier of 3x, 6x, 9x or 12x is awarded. If you land two clock symbols, another 2 free spins will be added to your total.

Resurrecting Roaming Wilds Free Spins feature – after each free spin, any wild symbols that land will fade away. They will then move around the reels and appear at random if new wilds land on the reels.


Mysterious is another awesome slot game from Pragmatic Play. The graphics and animations are fantastic, and the spooky backing track adds to the excitement and anticipation. The slot is all about the wilds, which can randomly award stacked symbols, multipliers and extra wilds to increase your winnings. There are two Free Spins features up for grabs, which is unusual for a classic slot game. With two options to choose from, you can go for whichever one tickles your fancy. Variance wise, the slot is medium to high with an RTP of 96.5%.

If you're looking for an action-packed slot game, this Pragmatic Play title will not disappoint. With a top payout of 9,648x your stake, you can undoubtedly win big if luck is on your side.