It’s a Mystery! Slots

It’s a Mystery! Slots

Who doesn't love mysteries? The title of this slot game, It's a Mystery, allows players to solve the mystery, whatever it may be. The features are fabulous and include Random Jackpots, Mystery Feature Guarantee, Wilds, Scatters, A Mystery Portrait Puzzle Bonus Feature, Free Spins, and the Win-Win Feature. Are you ready to play?

Slot Game Developer

The provider is Real Time Gaming, and the game is a Real Series Slot.

Play in Demo Mode

You can play this game in demo mode at Casino Slots Room.

The Theme

It's a Mystery! Slots is a mystery theme-based slot starring Sherlock Holmes.

Fun Play

You can play this slot game for fun at Casino Slots Room.

Real Money Play

Join Casino Slots Room to play this game for real money.

The Design

It's a Mystery Slot has a fabulous design with symbols that reflect the title. They are realistic, beautifully displayed, and offer players a chance to solve this mysterious puzzle.

Type of Game: Reels & Paylines

It's a Mystery! is a 5-reel, 25-pay line progressive bonus video slot. It has two jackpots: Major and Minor, which players can win at the end of any game. The Minor Jackpot begins at $100, and the Major Jackpot starts at $1000.

Game Controls

Here are the game controls and how to use them: AutoPlay, Bet, and Spin are at the bottom. At the top are the Balance window, Win window, and feature Guarantee with a scale starting with 0%.

Betting Options

The betting starts with 25 cents up to $25.00, which is the max per spin.

Paytable Location

Click on the Help button t the right-hand corner of the slot to access the paytable.

Return to Player

The RTP is 96%.

The Popularity Score

Players have given It's a Mystery Slots a popularity score of 1.

The Winners

There have been many winners who played this game.

Bonus Round and Free Spins

  • Feature Guarantee
  • The Feature Guarantee triggers when the game reaches its 150th spin without a feature win. The meter in the top right-hand corner starts at 150 and counts down after each paid spin. The Feature Guarantee countdown meter will change or start over after there is a bonus win.
  • Wild Symbol
  • The Question Mark is the Wild symbol. Get five Question Mark Wilds to win 7500 coins and up to 45,000 coins during the free spins round. The Scatter symbol is the It's a Mystery Spyglass. Get three or more to trigger the Portrait Puzzle Feature.
  • Portrait Puzzle Bonus Feature.
  • A new screen will tell players to press the start feature when they get three or more of the Scatter symbol. There are two rounds. In the two-round rounds, the puzzle pieces shuffle three times.
  • Round 1 will give players a win of up to 50 free spins. In Round 2, players can win a multiplier up to 6xs. If there were no puzzle pieces in this feature, players would receive five free spins with a 1xs multiplier.
  • Free Spins Round
  • After the Puzzle Feature has ended, free spins and a multiplier that the player's won will commence.
  • Win-Win Feature
  • The Win-Win Feature will begin after the free spins. Please refer to the paytable for more information about this feature and other features as well.

It's a Mystery Slots for Mobile Users

It's a Mystery Slots is compatible with Android and iOS devices.


It's a Mystery Slots is a great online slot for US players. In particular, the Puzzle Portrait is a winner, and we welcome all players to go to Casino Slots Room to play this game.