Riddle Reels: A Case of Riches: Overview

Get your magnifying glasses ready, because it’s time to work a case alongside Sherlock Holmes, one of the most celebrated detectives ever created. In this Play’n GO slot, players face off against the criminal underworld and try to outsmart it through a clue-packed bonus game. And since no crime story is complete without a weapon, combining the right elements can lead to some very healthy payouts.

He may not have been the very first detective in fiction, but Sherlock Holmes is easily the most famous. The pipe-smoking, deerstalker-wearing investigator debuted back in 1887 in A Study in Scarlet—and “study” is fitting, because Holmes could supposedly read a person’s entire life from a glance. You won’t need quite that level of brilliance in Play’n GO’s moody slot, Riddle Reels: A Case of Riches, but a bit of deduction certainly fits the theme.

In reality, it’s less about deduction and more about fortune, though a little make-believe is part of the fun. The investigation unfolds on a 3×3 grid with 9 fixed paylines, echoing a classic fruit slot layout. Even with its 19th Century London setting, it brings to mind Charlie Chance in Hell to Pay: the same overall format, similarly crisp symbols, and reels dressed up with ornate detailing. Both have that old-school vibe, then ramp up in complexity once the bonus game begins.

Designed for play on any device, with stakes from 10 p/c to $/€100 per spin, Riddle Reels arrives with medium volatility (5/10) and a default RTP of 96.22%. As is typical for Play’n GO, operators can adjust RTP to a lower setting, so it’s worth doing a bit of detective work before you play. While Play’n GO doesn’t publish hit frequency figures, it’s probably on the lower end given the game’s fruit-slot roots.

There are eight paying symbols, divided into two sets: lower-paying weapon icons and higher-paying suspects. The weapons are a noose, a tool, a dagger, and a pistol, paying 0.4 to 1 times the stake. The suspect symbols are a purple lady, a green glassed man, a golden damsel, and a sinister-looking man with a cane, with payouts from 2 to 12 times the stake.

Wilds play a useful role, and there are three types available. Alongside the standard wild, there’s an x2 wild and an x3 wild—each substitutes for any regular pay symbol. When multiple multiplier wilds land together, their values add up, reaching as high as x27. Since three standard wilds pay 12x by themselves, a line of x3 wilds can return 324 times the stake.

Riddle Reels: A Case of Riches: Features

The base game is fairly simple, but a few mechanics add extra layers. These are respins, the Mystery Feature, and the Bonus feature, and they’re all activated via the scatter symbol.

When scatters appear on two reels, the Respin feature starts. The reels showing scatters lock in place, and the remaining reel respins in an attempt to land a third scatter. If a further scatters fails to land on the respin, the Mystery feature takes over instead. Each scatter then duplicates to fill its reel, revealing either a suspect or a weapon symbol.

The Free Spins feature begins when 3 scatter symbols land anywhere on the reels. This is where the game adds more moving parts, so a touch of deduction may help. You’re shown a board with 14 covered spaces, each representing a clue. The feature awards five clues: one is given immediately, and the other 4 are collected as you progress around the board. A dice is rolled four times, moving you 1 to 6 spaces each roll. Every clue space grants 1-3 free spins, plus 1 of 4 spin variations. These are:

• Weapon – all weapon symbols convert to the same weapon.
• Suspect – all suspect symbols convert to the same suspect.
• A guaranteed wild reel.
• Nothing, better luck next time.

During free spins, you must achieve 1, 2 or 4 winning spins to complete the clue. Doing so awards clue points that build the Clue Point Wheel meter. If the meter is fully filled once the 4 dice rolls are finished, you receive a Mega Spin. A Mega Spin is a single free spin where one reel becomes fully wild (or multiplier wild), while the other two reels are set as either a suspect or a weapon. Once the Mega Spin is complete, the bonus retriggers.

If the meter hasn’t been filled after the 4 dice rolls, the Clue Point Wheel feature activates. The meter enlarges and spins, and if the arrow stops within the charged section, a Mega Spin is awarded.

Riddle Reels: A Case of Riches: Verdict

Now it’s time for our own bit of pipe-and-cap reasoning. Riddle Reels really feels like two games in one. The base game is a straightforward 3×3 experience, while the features become much more involved—though they sound more complex on paper than they feel when you’re actually playing. If the explanation seems a little puzzling, don’t worry: in motion it’s easy to follow. In short, you move around a board, collecting spins and rewards as you complete clues.

It won’t suit every player, but it does have strengths. The bonus round can run for quite a while, so it offers a solid amount of entertainment for your stake. It can also deliver strong returns, with wins reaching up to 5,000 times the stake.

Rather than being a pure high-octane gambling machine, Riddle Reels is more of a lighthearted trip down Baker Street with a detailed bonus game attached. The visuals are strong—slightly simple, but the cartoon-style approach fits the theme, the features, and the game’s overall tone.

Riddle Reels has a gritty edge without going overboard, like a theme-park take on a rough London district. That won’t be everyone’s idea of excitement, but plenty of players prefer their thrills in a comparatively “safer” setting. Ultimately, Riddle Reels: A Case of Riches is a modern fruit slot at heart, upgraded with plenty of extra bells and whistles to deepen the experience. It may not become an all-time classic, but it’s another dependable entry from Play’n GO.