Sherlock of London Slot Review by Rabcat
A cartoon detective slot with 25 paylines, wild features and expanding free spins
Sherlock of London Ratings
Sherlock of London has been rated by our slots review team and scores an awesome 83% based from the category ratings overall.
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Sherlock of London Slot Review by Rabcat
Sherlock of London is a cartoon style detective slot from Rabcat. Microgaming announced it in July 2019 as an exclusive for its operators. The game gives Sir Arthur Conan Doyle’s detective a humorous makeover.
It runs on five reels and 25 paylines. Three bonus features keep the action moving: connecting wilds, double wins and bonus spins. A free spins round adds expanding wilds.
This review covers the symbols, the wilds, the free spins and the bet range. It also explains who the slot suits.
Sherlock of London at a Glance
| Feature | Detail |
|---|---|
| Developer | Rabcat |
| Provider | Microgaming |
| Layout | 5 reels, 3 rows, 25 paylines |
| Bet range | $0.25 to $50 per spin |
| RTP | 96.03% |
| Volatility | Medium |
| Max win | 2,000x your stake |
| Wild | Sherlock Holmes |
| Scatter | Holmes and Watson |
| Free spins | 10, with expanding wilds |
| Mobile | Yes |
Theme, Graphics and Sound
The slot takes you back to the 1890s. Misty streets, gas lamps and crime fill the screen. The art style is cartoon like, so the mood stays light.
Rabcat also made Castle Builder II and Crystal Rift. It shows the same eye for clean animation here. The characters move with a playful energy.
The card symbols 10, J, Q, K and A are special. They carry the look and architecture of the period. As a result, even the low payers fit the setting.
If you enjoy mystery, you might also like Mystery Museum by Push Gaming.
Betting Range
Bets run from $0.25 to $50 per spin. That suits most budgets. The game has medium volatility, so wins arrive at a steady pace.
The maximum win is 2,000 times your stake. At the top bet, that equals $100,000. A lower stake gives you more spins and a longer session.
Symbols and Paytable
To win, land three to five matching symbols on a payline. The character symbols are Dr Watson, Inspector Lestrade, Irene Adler and Moriarty. The top basic symbol is the plaque for 221B Baker Street.
Here are the payouts for five on a payline.
| Symbol | Pays for 5 |
|---|---|
| Extra Watson wild | 40x |
| 221B Baker Street | 40x |
| Inspector Lestrade | 20x |
| Irene Adler | 10x |
| Moriarty | 8x |
| Dr Watson | 5x |
| Card symbols | 1x to 4x |
Values are multiples of your line bet. Check the in-game paytable for the full list.
Sherlock Holmes Wild
The wild is Sherlock Holmes himself. He replaces all other basic symbols and brings extra wins. He also drives three features.
Connecting Wilds
When two or more wilds land on the same spin, they link to each other. A trail of wilds forms between them. That trail converts nearby symbols and creates wins.
Double Win
When two wilds land on adjacent reels, the game doubles the line wins for that spin. You get a 2x multiplier on top of the normal payout.
Bonus Spins
This feature is also called Re-Spins. Land a wild on reel one or reel two, and you receive one or two bonus spins. The wild stays locked in place during these spins.
A locked wild can then trigger the Double Win or Connecting Wilds again. This combination is the base game’s best route to a strong payout.
| Feature | Trigger | Effect |
|---|---|---|
| Connecting Wilds | Two or more wilds on one spin | Trail of wilds forms between them |
| Double Win | Two wilds on adjacent reels | Line wins pay 2x |
| Bonus Spins | Wild on reel one or two | One or two respins with the wild locked |
Dual Scatter Symbol
Holmes and Watson act as the scatter symbols. Land three or more to start the free spins. Dr Watson also works as an extra wild in the bonus round.
Free Spins with Expanding Wilds
Three or more scatters give you 10 free spins right away. In this round, any wild that lands expands to fill the whole reel. An expanded wild can then trigger the Double Win or Connecting Wilds.
Dr Watson also works as a second wild during the round. However, he does not trigger the extra features. He simply substitutes for standard symbols and gives you more winning combinations.
The round can retrigger. Three more scatters add another 10 spins. In total, you can collect up to 20 free spins.
How a Session Feels
The base game moves at a relaxed pace. Small wins come from the character symbols. Wilds then stretch those wins with links and doubles.
The free spins round is the highlight. Expanding wilds, connecting trails and double wins can combine in one spin. A strong round can reach the 2,000x cap.
Medium volatility keeps the game fair for most budgets. You will not face long dry spells very often, though a quiet stretch can still happen.
About Rabcat
Rabcat is a studio that makes slots for Microgaming. Its catalogue includes Castle Builder II and Crystal Rift. Our Rabcat page lists more of the studio’s games.
You can also read our review of Castle Builder 2 to see another side of the studio’s work.
RTP and Volatility
The RTP is 96.03%. That sits just above the common 96% level. Over a long run, the slot returns $96.03 for every $100 staked.
Volatility is medium. Short sessions can differ widely from the long run figure. Learn more in our guide to RTP and online slots.
For games with a higher return, browse our list of best paying slots.
How to Play Sherlock of London
Pick your bet first, from $0.25 to $50. Then press spin. The game uses 25 fixed paylines, so your stake covers every line.
Wins pay from left to right. You need three to five matching symbols on a payline. The wild features trigger by themselves, so you do not need to press anything extra.
Most casinos include an autoplay option. Set a loss limit before you switch it on.
Why Wild Features Matter Here
Most of this slot’s action revolves around the wild. Connecting wilds, double wins and bonus spins all start from Sherlock. That keeps the base game lively without a separate bonus round.
As a result, even a quiet stretch can end with a sudden chain. Two wilds on the right reels can double a win and link a trail. One of them can then lock in for a respin.
Rabcat built the game around that idea. The wilds do the heavy lifting, while the free spins add an extra layer on top.
Strategy and Bankroll Tips
- Pick a stake that gives you at least 150 spins.
- Watch the first two reels for wilds.
- Aim for the free spins, where wilds expand.
- Set a loss limit before you start.
- Take regular breaks.
No system beats a slot. Each spin is random, and past results never affect the next. Treat play as entertainment.
Mobile and Demo Play
The slot runs on phones and tablets in a mobile browser. Nothing needs downloading. The 5×3 grid reads clearly on small screens.
Many casinos offer a free demo. Demo mode uses play money. It lets you watch how the wilds link up before you stake real cash.
New to slots? Our guide to free online slots explains the basics in plain English.
Playing Responsibly
A fun theme can make time fly. Set a budget before you start and keep to it. Use deposit limits and reality checks if your casino offers them.
Never chase losses. Stop if gambling stops being fun.
Who Will Enjoy Sherlock of London?
| Player type | Good fit? |
|---|---|
| Fans of detective themes | Yes. The Victorian London mystery is the main draw. |
| Players who like wild features | Yes. Three wild based features drive the game. |
| Players chasing huge jackpots | Not ideal. The top win is 2,000x. |
| Players with medium budgets | Yes. Medium volatility suits them. |
Pros and Cons
| Pros | Cons |
|---|---|
| Three wild based features | Top win of 2,000x is modest |
| Strong 96.03% RTP | Only 10 base free spins |
| Expanding wilds in free spins | No bonus buy or progressive jackpot |
| Charming cartoon style | Humour may not suit everyone |
Similar Slots to Try
For another Sherlock slot with progressive jackpots, try Sherlock and Moriarty WowPot. If you enjoy detective stories, Cluedo Spinning Detectives is also worth a look.
Sherlock of London Slot FAQs
Who makes Sherlock of London?
Rabcat makes it for Microgaming.
What is the RTP?
The RTP is 96.03%.
How many paylines does it have?
It has 25 paylines on a 5×3 grid.
What is the bet range?
Bets run from $0.25 to $50 per spin.
What is the maximum win?
The maximum win is 2,000 times your stake.
How do I trigger the free spins?
Land three or more Holmes and Watson scatters for 10 free spins.
Can the free spins retrigger?
Yes. Three more scatters add another 10 spins.
What does the Double Win feature do?
Two wilds on adjacent reels double your line wins for that spin.
What is the Bonus Spins feature?
A wild on reel one or two gives one or two respins with the wild locked.
Can I play on mobile?
Yes. It works in a mobile browser on phones and tablets.
Please gamble responsibly. Only play with money you can afford to lose, and use deposit limits if you need them.
T's & C's Apply. New Depositors Only
Mr. Mobi
Welcome Bonus Offer
200% Deposit BonusUp to $/€200+ 50 Free Spins on Super Miner - Mega Gems
New players only. Wagering from real balance first. 10X wagering the bonus money within 30 days. Contribution varies per game. Available on selected games only. The wagering requirement is calculated on bonus bets only. Bonus offer and any winnings from the offer are valid for 30 days. Max conversion: 1 time the bonus amount. Limited to 5 brands within the network. Withdrawal requests void all active/pending bonuses. Excluded Skrill and Neteller deposits. Full T&C apply.
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New players only. Wagering from real balance first. 10X wagering the bonus money within 30 days. Contribution varies per game. Available on selected games only. The wagering requirement is calculated on bonus bets only. Bonus offer and any winnings from the offer are valid for 30 days. Max conversion: 1 time the bonus amount. Limited to 5 brands within the network. Withdrawal requests void all active/pending bonuses. Excluded Skrill and Neteller deposits. Full T&C apply.
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