Play Mysterious Slot Game

  • Mysterious
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Lightning strikes just above the old Victorian mansion in the haunting Mysterious slot game at IE. With spooky music playing in the background, this 256 ways to win slot game is sure to excite Irish casino players. 

The game is played on a 4x4 grid, which expands to 6 reels and 4,096 ways to win during the bonus feature, and has several base-game modifiers that can float onto the reels. While it's never made clear exactly what the mystery is, with ghosts, masks, and plenty of ways to win real money, it's one mystery you won't mind taking your time to try and solve.

Game Features

  • Game Type: 4 reels, 4 rows, 256 ways to win
  • RTP: 95.50%
  • Volatility: High
  • Theme: Gold, Mystical Character
  • Provider: Pragmatic Play
  • Min Bet €: 0.10
  • Max Bet €: 50
  • Release Year: 2020

Play for Real Money

Register your IE account and make a deposit today for your chance at winning real money in the Mysterious slot game. Registration is easy; just click on the JOIN button at the top of the page to enter your information. Then, head over to the Cashier to select your preferred payment method, and your deposit will be processed immediately. Lastly, collect your Welcome Package, which you can use while playing real money slot games, and see what mysteries you can solve. For the latest bonus information, visit the Promotion page today as all bonuses are frequently updated.


While there is no progressive jackpot, the Mysterious logo has a max payout of 25x your bet, which can be increased by 12x during the Locking Multiplier Free Spins. If you make the €50 max bet, you could win the €15,000 jackpot prize.


The Mysterious base game is played on a 4x4 grid and has 256 ways to win on each spin. This means that instead of matching symbols landing in a row or on a preset payline, they just have to land on adjacent reels to be considered for a win.

  • Coin sizes / how the betting system works: Even though there aren't paylines, each coin must be used ten times to compensate for all the different ways to win. That being said, the smallest coin is worth €0.01, making the minimum bet for Mysterious €0.10. You can increase the coin's size and the number of times it's used on each "line" to a €0.50 coin bet ten times for a €50 max bet.
  • Symbols: The top paying symbol is the Mysterious logo, with a max payout of 25x. It's followed by masks of four ferocious animals, lion, wolf, ram, and bull, with top payouts ranging from 10x – 3x. The four low-value symbols are playing card suits, spade, heart, club, and diamond.
  • Wild: The wild symbol can substitute for any regular symbol to create a win. There are three different Wild symbols, each with a different modifier, which will be discussed in the Bonus Features section.
  • Scatter: The Free Spin symbol is the scatter, and it will activate the bonus feature when there are 3 or 4 on the reels.
Symbol 3x in a row 4x in a row 5x in a row 6x in a row
Logo 2.5x 5x 10x 25x
Lion 1x 2.5x 5x 10x
Wolf 1x 2x 4x 6x
Ram 0.5x 1.5x 3x 5x
Bull 0.5x 1x 2x 3x
Spade   0.5x 1.5x 2.5x
Heart   0.5x 1.5x 2.5x
Spade   0.5x 1x 2x
Diamond   0.5x 1x 2x
  • Bonus Features: There are three game modes during the base game, which can randomly activate on any spin in the base game.
    • The Lord: Any win with a wild symbol during The Lord mode can reveal a random multiplier of either 2x or 3x.
    • The Lady: When she's finished paying out for wins on the reels, the Lady Wild symbol can expand and reveal a stacked mystery symbol, creating new winning combinations.
    • The Baron: The ghost of the Baron can transform symbols that are on the same reel as the wild into additional wild symbols.

When three or four Free Spin symbols are on the board, you will enter the bonus feature. The reels expand to a six reel board with 4,096 ways to win.  You can choose between two game modes:

  • Locking Multipliers: A special multiplier symbol is added to the reels that can increase the size of the win by 3x, 6x, 9x, or 12x. If two multiplier symbols are on the board, you will be awarded three additional spins.
  • Resurrecting Roaming Wilds: A wild that appears during a free spin will turn into a ghost and float around the reels, with the chance of coming back to life in a random position, creating the chance for big wins.

Software and Mobile Experience

Pragmatic Play did a great job creating a spooky mystery-themed slot game. It starts with the unique 4x4 grid and continues with the symbols and background sound effects. The slot game looks just as good on mobile devices as it does on a regular computer, but with the added benefit of being able to play it from anywhere. The buttons are all touch-friendly and resized, so they aren't too big or small. There is no requirement to download any software or apps to play, although it is easier to get started with the IE app.


What is the RTP of the Mysterious game?

Mysterious has an RTP of 95.50%.

What is the jackpot in Mysterious?

A 12x multiplier in the Locking Multiplier bonus round can create wins up to 300x your total bet.

What is the biggest possible win?

You can win up to €15,000 on a single spin if you make the €50 max bet, win a free spin feature, and get a 12x multiplier while landing 6 Mysterious game logos in a row.

Can I play Mysterious on mobile?

Mysterious is a mobile-friendly slot game and is compatible with both Android and iOS devices. While IE has a mobile app, you can also play through your mobile browser if you prefer not to download any apps or software. 


While it would be nice if there were a backstory as far as who the Baron, Lady, and Lord are and what mystery we're trying to solve, the slot game is well worth playing. There is plenty of chance at winning real money when spinning the Mysterious reels with three regular game modes and two bonus free spin options. Collect your Welcome Package after you register your account and make a deposit, and then play Mysterious for real money at IE for real money.