Mystery Slots

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Where and how to play free mystery themed slots

If you enjoy mysteries then you will love the play for free mystery themed slots that we have for you at There is no registration required to play these great mystery demo slots games and no download of software needed. All you need is your browser to enjoy these great mystery slots.

By playing these mystery themed slots here at first you will not need to register at an online casino yet. Get to know the features of these mystery slot games and practice them until you have mastered them. Then you can play these exciting casino games for real money afterwards.

Mystery themed slot games vary in their features and gameplay. Some of the mystery slots are basic while others are more complex but exciting. The mystery slots that have more reels and paylines and bonus features will probably be the best option for you.

Mystery themed slots overview and history

So many people enjoy a good mystery so you shouldn’t be surprised that slot machine manufacturers used this to their advantage. Some of the very early slot machines used mystery symbols. We don’t know the exact time that these started to appear but you can bet that it was decades ago.

The main reason for the popularity of mysteries is the excitement that they generate. You don’t know who did it but you do know that this will be revealed near the end. So you can experience this excitement when you play the various mystery themed slot games available.

Mystery themed slots – which symbols are typical?

There are all kinds of mystery themed slot games. Some will feature detectives on the hunt for criminals. Others will feature mysteries from faraway lands where you will travel back in time. Here you may find ancient puzzles and different kinds of items that are clues to a hidden treasure for example. You can really expect to find many different symbols.

If you prefer a more modern mystery then you are going to find symbols of sleuths looking for clues. In some of the other mystery slots, you could find bags of money or various artefacts that have value. No matter what the mystery theme is it is sure to be enjoyable for you to play these slots.

Popular mystery themed slots

There is no table of the most popular mystery themed slots so we have done some research on your behalf. We found three games that we believe are very popular in online casinos that have the mystery theme:

John Doe by Stake Logic

If you want a good mystery themed slot then John Doe by Stake Logic is a fine choice. This slots game is all about corruption and crime in a city and you play the hero trying to find the answers. Your job is to stop the crime wave, you have 5 reels, 40 paylines, and some exciting features with this slot.

Jack Hammer 2 by NetEnt

Jack Hammer first appeared in Marvel comics back in the 1970s. He is a good agent in Jack Hammer 2 by NetEnt and your job is to help him find a beautiful girl called Pearl who is being held against her will by a villain with crab claws. This exciting mystery slot has 5 reels and up to 99 paylines. There is a good bonus round as well.

Agent Jane Blonde Returns by Microgaming

If you like James Bond then you will enjoy this take off by Microgaming called Agent Jane Blonde Returns. This slot has a comic book style to it, which intensifies the excitement. When you play Agent Jane Blonde Returns, you will have 5 reels and 15 paylines to keep you amused. There are other exciting features too with this slot game.

Bonus rounds and payouts you will get playing mystery themed games

With so many mystery themed slot games available, we cannot be specific about payout levels or bonus rounds here. Look at the great free to play mystery type slots that we have here at so that you can experience the features for yourself. You need to bear in mind that not all mystery slots include bonus features.

We recommend that you choose a mystery themed slot game that has bonus features, as this will increase your chances of a big win. It also makes the mystery slot game more fun to play. Some of the bonus rounds with mystery slots have very high payout levels.

Return to players RTP and strategies of mystery themed online games

You will find that a number of the mystery themed slot games have an RTP (return to player) that is higher than the average 95%. Nevertheless, you need to be aware that some mystery slots have a lower RTP than 95%. It should not be difficult for you to find these RTP figures online.

We really think that you will waste your precious time trying to find winning strategies and secrets for mystery themed slot games as they are pretty unlikely to be available. Instead you could try raising your stake in certain areas of the slots game. There is a risk to doing this though as you could lose too.

Software providers developing mystery themed slot games

Many of the most reputable software providers have at least one mystery themed slot for you to play. They know that most people enjoy mysteries so they have invested in the development of mystery slots. Here are some examples of those software providers:

  • NextGen
  • Game Art
  • Microgaming
  • Amatic
  • Merkur Gaming
  • Yggdrasil
  • High 5
  • Playtech
  • WMS
  • Habanero

Mobile mystery themed slots

Do you have an iPhone or iPad from Apple that uses the iOS system? Perhaps you have a Samsung Galaxy smartphone or tablet that uses Android? Well you will be able to play most of the mystery themed slots with your browser. The software providers optimize them for mobile play.

For the very best experience playing mystery themed slots on your smartphone or tablet, it is best to use a mobile app. Some mystery themed slots software providers create these so be sure to look in the Apple store if you have an iOS powered device or the Google Play Store if you have an Android powered device.

Pros and cons of mystery themed slots


  • There are several mystery themed slots available
  • A lot of mystery themed slot games have excellent symbols and great sounds
  • You will usually find mystery slots exciting to play


  • Some mystery slots don’t have bonus rounds and jackpots so you need to do some research first


If you like a good mystery then you will find the various mystery themed slot games entertaining. There are several kinds of mystery themes from modern detectives to ancient mysteries. We liked playing the mystery slots we tested and we are confident that you will really enjoy playing them as well.

FAQs about Mystery themed slots

Are mystery themed slots games exciting to play?
If you like mysteries then we believe that you will find the different mystery themed slots games exciting to play.
Can you play mystery themed slots free?
You can play mystery themed slot games free right here at
Do mystery themed slots have a good RTP?
The RTP of each mystery slot is different. There are some above 95% and some below.
Can you play mystery themed slot games on mobile devices?
Yes, you certainly can. Most software providers optimize their mystery slots games for mobile play.

Overall rating of Mystery slots by Casino Robots

Casino Games: Mystery slots; Requires: Browser with HTML5 support and web device with OS like: Windows, Android, iOS, Linux, etc.; Type: Game; Price: Free (0); Rating: 9.52 out of 10