Riddle Reels: A Case of Riches Slot

Riddle Reels: A Case of Riches Slot

Technical Table Information

RTP (return to player):96.22%
Casino Gaming Developer:Play’n Go
Release Date:30.07.2020
Maximum Multiplier:5,000x
Winning Lines:9
Min bet: 0.10
Max bet: 100
Provably Fair:No
Jackpot: No
Technology used:HTML5
Theme slot: Detective
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Description of the Slot 

The world’s most famous detective is back again to solve a high-profile case! But joining Sherlock Holmes this time are more characters from his fictional universe. Play’n Go has pulled off a perfect detective slot, Riddle Reels: A Case of Riches, where players put on Sherlock’s hat to solve cases. 

The plot of Riddle Reels unfolds on a 3×3 grid panel with nine paylines. Although the slot resembles a pub fruit machine, it is dense with complicated bonus features, which we will examine in the bonus section. Also available in the game are three types of wild symbols with multipliers involved. So, without building the suspense any further, let’s use our power of deduction to investigate the Riddle Reels.

Design and Audio

Since the game’s protagonist is the famous Sherlock Holmes, the setting is the early 1900s. Behind the beautifully gilded reels are large urban buildings of that period, with a pub and baker’s signboard in view. Despite having three reels, the slot looks visually splendid and somewhat Victorian as well. 

The background score has a mysterious note that perfectly fits the slot’s espionage theme. Overall, the visuals and audio of Riddle Reels are exquisite, making for a perfect thematic atmosphere needed for an immersive gaming experience.


It is during the bonus rounds that Riddle Reels opens its casket of multiple and somewhat complicated features. Let’s look at them one by one to understand them better. 

Re-spin Feature 

The magnifying glass with a question mark is the game’s scatter symbol. Landing 2 scatters in a spin triggers the Re-spin feature, where the reel with no scatters spins again. The action proceeds to a mystery feature if you don’t get a third scatter symbol in the re-spin

Mystery Feature 

Not getting a scatter during re-spin automatically activates the mystery feature. In this feature, the two scatters present on the reels duplicate themselves and transform into a random paying symbol

Case of Riches

Landing 3 scatters triggers the most anticipated game feature, Case of Riches. As the bonus feature begins, players come across a board game with 14 spaces. Each space has a clue to solve the case. Five clues are handed out to you: one at the beginning and the other four via moving on the board

You get four dice rolls, with each roll covering 1 to 6 spaces. Unraveling each clue awards 1-3 free spins with one of the following variations: 

  • All weapon symbols turn into the same weapon type 
  • All suspect symbols convert into a single suspect 
  • A wild reel 
  • No variations or modifiers 

Players have to get 1, 2, or 4 winning spins to complete the clue. The points gained fill the Clue Point Wheel Meter. The Clue Point Meter feature gets triggered if the meter is not full after four dice rolls

Clue Point Meter

This feature gives you a second chance to solve the case by spinning the wheel. Landing on the winning segment solves the case, awarding you the Mega Spin and retriggering the Case of Riches feature again

Mega Spin Feature 

If the meter gets fully charged, the Mega Spin feature becomes active. You win one spin where a reel is fully wild (with up to 3x wild multiplier), while the other two consists of a suspect or weapon. After the Mega Spin, the game returns to the Case of Riches bonus round to solve another case


Riddle Reels has 8 paying symbols with noose, wrenches, daggers, and guns at the lower end, none paying more than your bet amount. At the higher side are four character symbols: Miss Adler, Milverton, Ronder, and Professor Moriarty. Sherlock’s archenemy Professor Moriarty is the highest paying game symbol offering 12x the stake for landing three identical ones

Apart from a standard wild symbol, the slot features two multiplier wilds of values x2 and x3. Their multipliers get multiplied if more than one wild is part of a winning combination. For instance, x2 and x3 wild multipliers would become a multiplier of x6 in a winning combination. Furthermore, Riddle Reels boasts an impressive max win prize of 5,000x the stake


It doesn’t take long to figure out what’s happening in Riddle Reels. The game unravels as a detective fiction where you take the role of famous Sherlock Holmes to solve cases with the clues you win. 


Riddle Reels: A Case of Riches is a medium variance slot. Slots with medium volatility have moderate risk levels and offer frequent payouts, although of generally small size. 

About the Game Provider 

Play’n Go is a Swedish game provider renowned for creating famous slots like Book of Dead and Reactoonz. The company began its igaming journey in 1997: a timeline when NetEnt and Microgaming also entered the scene. Since then, Play’n Go has attained great success as a game provider and continues to release excellent slots.

Play’n Go smoothly adapts to the rapidly developing igaming industry. This becomes evident with the company’s partnership with several crypto-gambling platforms. Hence, now you can play your favorite Play’n Go slots in Bitcoin, Ethereum, and other crypto casinos. 

Final Considerations 

Riddle Reels might have one or two complicated bits, but they don’t require the brain-racking Sherlock generally does. A glance into the features reveals what they are about. Even if it takes some time to understand, we don’t expect anything less from a mystery-solving slot. 

But on the brighter side, the game has a stunning design and soundtrack, above-average RTP of 96.22%, and an impressive maximum win potential. While the symbols are not very generous with payouts, support from wild multipliers can raise the pay size significantly. 

Other Slots by Play’n Go 

  • Diamond Vortex
  • Rise of Merlin 
  • Ankh of Anubis


Our Riddle Reels: A Case of Riches review deciphers the slot’s payouts, volatility, bonus features, etc. If you find the list of features too complicated, we recommend playing the game’s demo version given at the top. Contact us via the dialog box for any other query related to the slot We’ll try our best to satisfy you with an answer! 


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