Top Mystery Slots Online: Play Free or For Money

If you’re looking to inject a little intrigue into your life, then these top mystery-themed video slots have got you covered. Here on this page you’ll find a list of our top ten mystery-themed slot machines online, with the best payouts and gameplay features and made by the top developers in the industry. We’ve also answered some of the most frequently asked questions about how to play mystery slots, getting you started on your journey to slots betting success.

Payout (RTP) User Rating Where to Play
96.98% 5/5
96.7% 5/5
96.59% 5/5
96.5% 5/5
96.45% 5/5
96.51% 5/5
96.22% 4.5/5
96.26% 4.5/5
96.06% 4/5
95% 3.5/5

Further on this page you’ll find everything you need to start betting on free and real money mystery slots, including the best games from the top developers around. We’ve included information about the RTP’s and developers of our top ten mystery slots, deeper info about our top five games, and more answers to your most frequently asked slots betting questions.

Best Mystery Theme Slots

For bettors looking for a place to start with mystery slots betting, there’s no better avenue to take than these top ten mystery slots. Below we’ve detailed the developers and RTP’s of our top ten games in this theme. If you’re looking for more mystery slots betting info, be sure to read on.

  1. Mystery Joker – RTP: 96.98% (Play’n GO)
  2. Mr Green Moonlight – RTP: 96.7% (NetEnt)
  3. Rich Wilde and the Tome of Madness – RTP: 96.59% (Play’n GO)
  4. Creature from the Black Lagoon – RTP: 96.5% (NetEnt)
  5. Agent Jane Blonde – RTP: 96.45% (Microgaming)
  6. The Shadow Order – RTP: 96.51% (Push Gaming)
  7. Riddle Reels – RTP: 96.22% (Play’n GO)
  8. Agent Destiny – RTP: 96.26% (Play’n GO)
  9. Cash Noire – RTP: 96.06% (NetEnt)
  10. Madder Scientist – RTP: 95% (Betsoft)

All the games on our list are among the very finest in mystery slot machine games. In the following section, we’ll go into depth about some of the finer features of our selections for the top five mystery-themed slots available now, including details about their symbols, payouts, developers, and unique perks.

1. Mystery Joker

At the top of our mystery-themed slots list is Mystery Joker, fun and traditional game by top developers Play’n GO. Though the game’s title features one of the most popular characters in pop culture of the past decade, it’s not exactly what you might think. The game is a simple and somewhat old-school classic format with three reels and five paylines. Mystery Joker features a fantastic RTP of 96.98%. While Mystery Joker doesn’t contain any bonus games or a progressive jackpot, the game does feature a fifty-coin jackpot, the opportunity to win free spins, and a maximum bet of $100 per spin.

2. Mr. Green Moonlight

If you’re in the mood for sleuthing around town hot on the tail of a crime, then Mr. Green Moonight is the game for you. Played across five reels with 20 paylines, top developer NetEnt’s Mr. Green Moonlight is a suspenseful thrill ride with an RTP of 96.7% and a great jackpot of 1,500 coins. Featuring a combination of free spin rounds, scatter symbols, and multipliers, the game is jam-packed with features. Mr. Green Moonlight also showcases some of the moodiest and atmospheric graphics on our entire list of mystery slots, with a detective and back-alley London feeling pervading the players’ experience.

3. Rich Wilde and the Tome of Madness

Yet again developers Play’n GO have made our top five mystery slots with the epic sequel to their original Rich Wilde slot game, Rich Wilde and the Tome of Madness. The game is a gloriously well-designed romp amidst mysterious abandoned mansions and castles, with players adventuring as Rich Wilde across five reels and five paylines. This high-volatility game is full of additional features, including clusters, expanding wilds, free spin rounds, and more. Players will be stunned to discover that the game’s maximum payout is 2,000 times your original betting stake per payline, making it a sizeable contender in the mystery slot genre.

4. Creature from the Black Lagoon

For the players who like their mysteries a little further on the sci-fi side, Creature from the Black Lagoon is the perfect game for you. With a vintage sci-fi retro comic book or b-movie aesthetic, the game is a feature-laden adventure with five reels, 20 paylines and a 750-coin jackpot. Creature from the Black Lagoon includes an exciting bonus game which is activated by spinning at least three free spin symbols, enabling bettors to win up to 20 free spins at once. Fun, fresh and exciting, Creature from the Black Lagoon from top developers NetEnt is a magical concoction of intrigue, exploration and mystery.

5. Agent Jane Blonde

One of Microgaming’s most popular mystery-themed games, Agent Jane Blonde is an original and exciting comic book-style slot. Played across 15 paylines with five reels, this quirky low volatility slot is a consistent and reliable gaming experience. Though the game does not feature a jackpot, its maximum payout of 120,000 coins more than makes up for it, and if you manage to line up five wild symbols, you’ll win a humongous 10,000 times your betting stake. This game gets some of the most consistently high user ratings on our list, and it’s easy to see why with Agent Jane Blonde’s healthy RTP of 96.6% and cartoony graphics.

Who Makes the Best Mystery Themed Slots?

For the absolute pinnacle of mystery slot experiences, the games provided by the developers of our top games cannot be overlooked. All of the developers in this list make some of the best casino software games available on the internet today and are highly rated and reliable contributors in the world of slots betting.

Software Developer Jackpot RTP Slot Game
Play’n GO Yes 96.98% Mystery Joker
NetEnt Yes 96.7% Mr Green Moonlight
Microgaming No 96.45% Agent Jane Blonde

The above developers can be seen on many of our lists of themed games, and make top casino software games in both the mystery theme and in dozens of other exciting and popular slot machine varieties. Players looking for more options are wise to try games by these developers first, many of which are provided in both desktop and iOS or Android mobile versions.

Conclusion: Play Mystery Themed Slots for Real Money

For players looking to get involved in the best mystery-themed slot games available, this page has included everything you need to get started. We’ve covered the top ten mystery slots, further info about our top five picks and their most special features, and included more information about the top developers of mystery games. If you’re looking for more slot betting options in a massive variety of themes, take a look at our main slots page.

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FAQs About Mystery Slots

With so many options available in the mystery slot and slot betting world at large, it can be tough to know where to start before laying down your cash on real money bets. That’s why we’ve included the following sections, which answer some of the most frequently asked questions made concerning how to approach slot betting, plus some handy tips and tricks.

What are the best mystery themed slots?

For the absolute best options available in the realm of mystery-themed video slots, it’s hard to go past our list of the top ten mystery slots online. All of the games in our top ten list include features that set them apart from the pack, including high RTP’s, excellent gameplay features and graphics, and great payouts. These games are also all made by top developers in the industry, so you can’t go wrong with our top ten mystery slots.

Which slots have the best payouts?

If you’re looking for games with the highest payouts, it's important to take a number of factors into consideration. Some slots may claim to have gigantic maximum payouts, but without an RTP (Return to Player) percentage high enough, it may be beyond likely that you’ll see any of that paid out. That’s why it’s best to play with slots with high RTP’s to ensure a good frequency of payouts. Many of the games on our list of top ten mystery slots feature high RTP’s and great maximum payouts, so we advise you to start there. For more high paying slots options in other themes, take a look at our main slots page.

Is there a trick to winning slots?

There are a number of helpful tips and tricks to playing slots that players are recommended to incorporate into their betting strategies. There are no magic solutions to winning any given slot, but bettors can use these tips to increase the odds of playing successfully. For one, always bet with slots that feature a free-to-play demo version, to familiarize yourself with the game’s mechanics and see if it's right for you. You should also ensure that the game has a high RTP so that you’re more likely to see your money back, and that it has good user ratings. Many of the games in our top ten mystery slots online feature all of these features, so make sure you give them all a try.

Are there any mystery themed jackpot slots

Fans of the mystery slot genre will be ecstatic to know that there are many mystery-themed jackpot slots available online. Several of the games in our list of the top ten mystery slots feature jackpots, both in the traditional single-quantity amount such as Mystery Joker and Mr. Green Moonlight, in addition to games with progressive jackpots which increase as you continue to bet.

How do I get free spins?

If you’re looking to get free spins, there are only a few ways to do so. Generally speaking, players are able to earn free spins by activating in-game combos and bonus rounds, which is fairly common to most software games and themes. Occasionally, games will offer free spins as an introductory deal, as will certain casinos upon signup. Check out our top mystery slots list to see if any matches your expectations.
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