Return to player
96.22%
Minimum bet
10
Slot format
Video Slots
Volatility
Medium
Number of reels
3
Progressive jackpot
No
Popularity
Maximum bet
100
Game Provider
Play'n Go
Bonus features
Yes
Pay lines
9
Theme
Detective
Riddle Reels – A Case of Riches online slot
Riddle Reels – A Case of Riches is a British-style slot starring Sherlock Holmes in a crime caper, presented as a classic UK pub-style fruit machine with 3 reels, 9 paylines and plenty of action. Multiplier Wilds, Scatters that award re-spins, a dice-based bonus board and a clue-point wheel can help crack the case and trigger Mega Spins, with a potential multiplier of 5,000x the spin bet.
Theme and Storyline
Riddle Reels revolves around a criminal mystery for the world’s greatest detective, Sherlock Holmes. Spin the reels to uncover the crime of the century on this classic UK pub fruit machine, featuring Irene Eugenia Ronder, Professor Moriarty, Adler and Charles Augustus Milverton.
Graphics, Sounds, and Animation
A moonlit London street sets the scene for a familiar slot interface, enhanced with modern 3D graphics and animations that seem to leap off the screen. A slow, mysterious theme plays in the background, while winning symbol combinations bring a high-pitched flourish. It’s a solid presentation for a modern classic slot game.
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Gameplay
This 3x3 slot has just 9 pay lines and regularly forms 3-symbol combinations across the reels. Matching symbols can award spin-bet multipliers; scatters trigger re-spins and the bonus, while wild multipliers can boost a winning combination.
The 3 wild symbols act as substitutes for the 8 regular ‘Riddle Reels’ symbols. 2 of the wilds add x2 or x3 multipliers to combinations they complete. Matching them on a pay line can yield substantial spin-bet multipliers.
The spin-bet multipliers for 3-symbol combinations are:
- X3 Multiplier Wild: 324x
- X2 Multiplier Wild: 96x
- Standard Wild: 12x
- Sherlock Holmes: 12x
- Irene Adler: 8x
- Charles Augustus Milverton: 4x
- Eugenia Ronder: 2x
- Gun: 1x
- Knife: 0.8x
- Wrench: 0.6x
- Rope: 0.4x
Bonuses and Free Spins
Re-Spins: Landing 2 scatter symbols on the reels triggers 1 re-spin.
Case of Riches Bonus Feature: The bonus board game begins when 3 scatters land anywhere on the reels, challenging you to solve the crime case.
The board wraps around the reels, with 4 dice rolls to move across the ‘?’ spaces, each representing a clue. Clues add to the ‘clue point meter’ according to their difficulty. Solve the case to activate ‘Mega Spin’; otherwise, the ‘Clue Point Meter’ feature comes into play.
Clue Point Meter: If the dice rolls do not solve the case during the ‘Case of Riches Bonus Feature’, the clue point meter is triggered. Part of the round meter is ‘blue’ and the rest ‘brown’. The meter spins; landing in the blue area solves the case and activates the ‘Mega Spin’ feature.
Mega Spin: A Mega Spin win turns the middle reel wild. 3 wild symbols with a 3x multiplier then help create higher-value wins.
Bet Sizes, RTP and Variance
The slider lets you set a stake of 0.10-100.00 per spin. Play’n Go’s website describes Riddle Reels – A Case of Riches as a medium-variance slot with a 96.22% RTP.
Conclusion
Evan Carrington’s review presents Riddle Reels as a modern take on UK pub-style 3-reel fruit-machine play, blending a board-game mystery with online slot mechanics. Play’n Go’s Riddle Reels – A Case of Riches features Scatters, multipliers and Wild-symbol combinations listed at up to 324x the bet, with a stated maximum win of up to 5,000x the spin bet. These are game features and listed figures, not guarantees of any particular result.
Evan Carrington brings more than 12 years of experience in the iGaming industry, with a focus on reviewing online casinos, assessing slot games and examining player safety. Their work covers casino licensing, RTP, volatility, bonus terms and withdrawal policies. Drawing on practical testing and independent research, Evan provides clear, evidence-based reviews to help players understand gambling platforms, their features and possible risks.
