Riddle Reels: A Case of Riches

Review, Demo Play, Payout, Free Spins & Bonuses

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  • Medium volatility gameplay
  • 5000x top prize
  • Free spins with reel modifiers
  • Wild multipliers available
  • Free spins bonus is complex
  • 9 paylines fairly minimal

Riddle Reels is a 9-payline online slot developed by Play’n GO. Features include respins, mystery symbols, free spins and wild multipliers. The RTP of this medium volatility slot is 96.22% and its top prize is worth 5000x.


Play’n GO’s Riddle Reels online slot is a mystery slot in which Sherlock Holmes is charged with the task of solving a grisly murder – and, the player even helps him crack the case in the free spins round. This slot comes equipped with a number of fun bonus features, and makes for an interesting gaming experience with plenty of generous winning potential. If you’d like to play this slot for free, we have the Riddle Reels slot demo available right here at Slots Temple.

Theme and Graphics

Riddle Reels has a mystery theme, starring the world’s greatest detective Sherlock Holmes. The game is set on the dark streets of London, with a very ominous tone to the graphics. The symbols feature suspects and potential murder weapons, really driving home the whodunnit nature of this online slot.  

Did you know? In Sir Arthur Conan Doyle’s novels, Sherlock Holmes never actually says “Elementary, my dear Watson”!

Riddle Reels: A Case of Riches

RTP and Variance

The RTP of Play’n GO’s Riddle Reels is 96.22%. It’s also a medium volatility game that offers up a top prize of 5000x.

How to Win

As is the case with any 3-reel slots game, you have land three matching symbols on the game’s paylines. There are 9 paylines in this game, so there’s more winning potential than you would expect from a game with just three reels.

The most generous symbol in the game is the wild, which can appear as a wild multiplier and offer up a prize worth 324x your stake. When it comes to standard symbols, the man in blue offers the most generous prize with a payout of 12x for three across a payline.

The wild multipliers can also be combined. If more than one is involved in a combination, their values are multiplied. So, if you land a 2x wild multiplier and a 3x wild multiplier, you’ll end up with a prize multiplied by 6x.

Riddle Reels Free Spins and Bonuses

When you land three scatter symbols, you’ll trigger the bonus game. If you manage to land 2, you’ll get a respin for a second chance at entering the bonus round. If that third scatter doesn’t land, you’ll activate the Mystery Bonus.

In the Mystery Bonus, the scatters will expand on their reels. Then, they will reveal either a character or weapon symbol. This can lead to a pretty decent consolation prize.

If you manage to trigger the bonus, you’ll enter into a board game-style feature. You get four rolls of the dice and the board will have 14 spaces on it with a clue on each one. As you make your way around the board, you’ll collect clues and different modifiers:

  • All suspects transform into the same suspect symbol
  • All weapons transform into the same weapon symbol
  • A wild reel
  • Nothing, and you just get a result spin

When you roll the dice, you’ll move along the reels and pick up a clue which has specific instructions on it – usually requiring you to land a win. If you complete the task, you’ll charge the clue metre.

If you don’t fully charge the clue metre (which is very likely), you’ll be taken to the Clue Points wheel which has a blue space to represent the number of clues you’ve collected. If your spin lands in the blue space, you’ll be taken to the Mega Spin. Here, there’s one wild reel, and the other two reels consist of just one suspect or one weapon. After this, the free spins bonus is retriggered.

The Mega Spin is also directly triggered if you manage to collect all of the clues in the free spins bonus - which is no easy task.

Overall Review

Riddle Reels is a really fun online slot from Play’n GO that offers frequent wins with an intriguing theme. The game offers up great winning potential thanks to its medium volatility. The wild multipliers add another layer of excitement to the game so you can enjoy some thrills as you spin the reels.

Things kind of fall apart when you make it to the free spins round. While you’d normally look forward to the free spins bonus, it’s actually a bit of a shlep because you don’t actually understand what’s going on and how you actually can “solve the case”. Even reading the paytable and examining the rules doesn’t actually clarify anything.

It’s not often that we think a game would be good with fewer features but that’s actually the case with Riddle Reels. The free spins round would fine without the clues and only with the reel modifiers.

Still, Riddle Reels is worth a few spins. There’s definitely some fun to be had in this Play’n GO slot.

Disclaimer: Riddle Reels: A Case of Riches trademark / license is owned by Play N Go. This site is not endorsed by Play N Go.

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Slot Data
Slot Name: Riddle Reels: A Case of Riches
Software: Play N Go
RTP: 96.22%
Volatility: Medium volatility
Paylines: 9
Reels: 3
Min Bet (all lines covered): £0.10 (GBP)
Max Bet: £100 (GBP)
Top Win: 5000
Features: Wild Symbol , Scatter Symbol , Multiplier , Free Spins , Medium volatility , 5 Reels , Stacked Symbols , Mystery Symbols , Turbo Spin , Symbol Collection
UK Available in GB? Yes. Play N Go have a UKGC license and are allowed to offer their games at UK licensed casinos.

Riddle Reels Slot FAQs

What is the RTP of Riddle Reels?

Riddle Reels has a payout percentage of 96.22%.

What is the biggest win available on Riddle Reels?

The largest payout you can land while playing Riddle Reels is 5000x.

How volatile is Riddle Reels?

Riddle Reels is a medium volatility slot.

Is there a free spins bonus in Riddle Reels?

The free spins bonus is triggered by landing three or more scatters in the base game. This is a board game round where you can solve the case for a bonus prize.

How does the Mystery Feature work?

When you land two scatters, you’ll get a respin that can award a third scatter. If it doesn’t, then the two scatters will expand and reveal the same suspect symbol.

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