Shamrock Holmes Megaways Slot Review

3.7/5
Based on our expert’s review. Reviewed by
Microgaming Slots
Review by
Chris Taylor
Updated: 01/12/2022
Review by
Chris Taylor
Updated: 01/12/2022

Powered by Microgaming and All41Studios, the Shamrock Holmes Megaways slot is an Irish/detective themed game that uses Big Time Gaming’s famous mechanic. With 6 reels and up to 117,649 ways to win, it comes with Rolling Reels for continuous wins. There’s a re-spin feature where you can get a free re-spin with up to 117,649 guaranteed Megaways. In the Free Spins feature, you begin with a 2x multiplier as wins increase the multiplier infinitely. With an RTP of 96.44%, it comes with 28,500 x bet max wins. Find out more in our Shamrock Holmes Megaways review.

Max Win
28,500 x bet
Play
T&Cs Apply

18+. New players only. 100% bonus on first deposit up to £50 & 50 Bonus Spins (30 spins on day 1, 10 on day 2, 10 on day 3) for Rich Wilde and the Book of Dead slot only. Min first deposit of £10. Max bonus £50. Max bonus bet £5. Max bonus cash-out £250. 40x wagering requirements. Bonus expiry 30 days. Bonus spins expiry 2 days. Game restrictions apply  Further Terms Apply #ad

Provider
Microgaming
Type of Slot
Megaways Slot
Theme
Irish Luck
Reels
6
Paylines
Up to 117,649
Stakes Range
20p to £20
Bonus Features
Yes (3)
Free Spins/Multiplier
10-Unlimited/Unlimited
Max Win
28,500 x
RTP
96.44%
Volatility
High

Shamrock Holmes Megaways Demo

18plus uk-gambling-commission online-slot-co-uk-logo agechecked-verification-provider
T&Cs Apply 18+. New players only. 100% bonus on first deposit up to £50 & 50 Bonus Spins (30 spins on day 1, 10 on day 2, 10 on day 3) for Rich Wilde and the Book of Dead slot only. Min first deposit of £10. Max bonus £50. Max bonus bet £5. Max bonus cash-out £250. 40x wagering requirements. Bonus expiry 30 days. Bonus spins expiry 2 days. Game restrictions apply  Further Terms Apply #ad
18plus uk-gambling-commission online-slot-co-uk-logo agechecked-verification-provider
T&Cs Apply 18+. New players only. 100% bonus on first deposit up to £50 & 50 Bonus Spins (30 spins on day 1, 10 on day 2, 10 on day 3) for Rich Wilde and the Book of Dead slot only. Min first deposit of £10. Max bonus £50. Max bonus bet £5. Max bonus cash-out £250. 40x wagering requirements. Bonus expiry 30 days. Bonus spins expiry 2 days. Game restrictions apply  Further Terms Apply #ad

Recommended Casino

Best casinos to play Shamrock Holmes Megaways slot with real money

100% Bonus up to £100 + 100 Free Spins
T&Cs Apply

18+ new players only. Minimum deposit: £20. Maximum £100 bonus. Max bet with an active bonus: £2. Wagering requirement 100% match bonus: 30 times sum of deposit + bonus. Max redeemable from welcome bonus: £500. 100 Free Spins are given out 20 per day on Book of Dead for 5 days in a row, log in each day is required. Max Free Spins winnings: £100. Winnings from Free Spins are credited as bonus money with a wagering requirement of 45 times. Free Spins expire after 3 days. Some games may not be played with a bonus. Games may contribute differently when wagering a bonus. Play Responsibly! www.begambleaware.org. #ad

100% Bonus up to £100 + 20 Bonus Spins
T&Cs Apply

18+. New customers. Opt-in required. 20 Bonus Spins on “Sahara Riches Cash Collect” at 10p per spin and 100% Deposit Bonus up to £100 on first deposit (payment method and play restrictions apply). Min. deposit £10. 30x wagering for Bonus Spins and Deposit Bonus (game weighting applies). Max. £5/spin or £0.50/line. 30 days expiry. Please gamble responsibly • www.begambleaware.org #ad

T&Cs Apply

T&C’s: First-time depositors only (18+ country restrictions apply. Min Deposit £5. Max Offer: Max offer is 100% Games Bonus up to £30 & 50 Free Spins on [Game of our choice]. Promo code: AMBER5. Any Games Bonus winnings, if applicable, must be wagered 35x before withdrawal. Any Free Spins winnings, if applicable, will be credited as bonus funds and capped at £5. FS are valid for 7 days and any winnings must be wagered 35x before withdrawal. Games Bonus win cap: £100 + original bonus amount. Wagering contribution varies by game. We reserve the right to deny bonuses based on abusive bonus activity across sites operated by the Company. Deposit balance is available for withdrawal at any time (UK only).  General withdrawal restrictions & full T&Cs apply. Valid until 31/12/2023. www.begambleaware.org #ad

T&Cs Apply

18+. New players only. Min deposit £20. Bonuses to a max of £100 + 50 bonus spins. Wagering bonus 35x. Wagering bonus spins 35x. The winnings must be wagered within 21 days #ad

Shamrock Holmes Megaways Slot RTP, Details & Wager Limits

Reels/Paylines: 6 reels + up to 117,649 ways to win

Stakes Range: 20p to £20 per spin

RTP: 96.44%

Max Win: 28,500 x bet per spin

The Shamrock Holmes Megaways slot has 6 reels and uses Big Time Gaming’s Megaways mechanic. With between 2 and 7 symbols appearing randomly on each reel, you can play with up to 117,649 ways to win (or Megaways).

The more symbols per reel, the more possible winning combinations. For more details on how the mechanic work, check out our Megaways online slots section. A winning formation is formed by landing 3 to 6 matching symbols on successive reels starting from reel 1. The only exception is Shamrock Holmes himself as you only need 2 on adjacent reels.

When it comes to stake levels, you can spin away from 20p to £20 per spin. Just click on the coins icon on the right hand side of the game to adjust your bet level. There’s an Autoplay function where up to 100 autospins can be chosen. You can play with or without the sound effects and using a Quick Spin mode for faster spin speed.

The Shamrock Holmes Megaways RTP is 96.44% which is over the 96% slot average. This means you will win back £96.44 on average for every £100 you play or wager. Highly volatile, you won’t have to wait long for a winning combination as it comes with a 35.34% hit frequency rate. This means over a third of spins will result in a winner.

When it comes to payouts, the max win is 28,500 x your total bet per spin. Bigger wins will come from the unlimited win multiplier which is in play during the free spins.

Theme – join the Irish detective

Theme: Irish Luck

High Value Symbol: Shamrock Holmes

Compatibility: Mobile, Tablet, Desktop

Shamrock Holmes Megaways slot base game

The Shamrock Holmes Megaways slot has an Irish luck theme. Set in an enchanted forest, it’s all about the Shamrock Holmes character which combines a lucky leprechaun with the infamous Sherlock Holmes. The soundtrack is calming and peaceful until you press the spin button. The traditional Irish jig gathers pace as you play.

With the symbols appearing on wooden slats, they include Gaelic style A, K, Q, J, 10 and 9 royals. The higher value symbols include Spring Gentian flowers, Shamrock flowers, pixies with cauldrons full of gold coins and Shamrock Holmes. The Shamrock Holmes character is the most rewarding symbol giving you 1, 2, 10, 25 or 50 x your total stake for 2, 3, 4, 5 or 6 in combination.

There is also a W wild symbol which can only appear on the extra reel (above the main reel area). As you can expect, it substitutes for all symbols except the Gold Shamrock Coin Scatter and symbols participating in a re-spin trigger.

Symbol Payouts/Info
shamrock-holmes-megaways-slot-9-symbol9 3, 4, 5 or 6 = 0.1, 0.2, 0.4 or 1 x bet
shamrock-holmes-megaways-slot-10-symbol10 3, 4, 5 or 6 = 0.1, 0.2, 0.4 or 1 x bet
J 3, 4, 5 or 6 = 0.1, 0.2, 0.4 or 1 x bet
shamrock-holmes-megaways-slot-q-symbolQ 3, 4, 5 or 6 = 0.2, 0.4, 0.6 or 1.5 x bet
K 3, 4, 5 or 6 = 0.2, 0.4, 0.6 or 1.5 x bet
shamrock-holmes-megaways-slot-a-symbolA 3, 4, 5 or 6 = 0.2, 0.4, 0.6 or 1.5 x bet
shamrock-holmes-megaways-slot-spring-gentian-flower-symbolSpring Gentian Flower 3, 4, 5 or 6 = 0.3, 0.5, 0.8 or 2 x bet
shamrock-holmes-megaways-slot-shamrock-flower-symbolShamrock Flower 3, 4, 5 or 6 = 0.3, 0.5, 1 or 2.5 x bet
shamrock-holmes-megaways-slot-pixie-symbolPixie 3, 4, 5 or 6 = 1, 2, 3 or 5 x bet
shamrock-holmes-megaways-slot-shamrock-holmes-symbolShamrock Holmes 2, 3, 4, 5 or 6 = 1, 2, 10, 25 or 50 x bet
W Wild Substitutes for all paying symbols above
shamrock-holmes-megaways-slot-gold-shamrock-coin-scatter-symbolGold Shamrock Coin Scatter Key to triggering main bonus features

Shamrock Holmes Megaways Mobile

shamrock-holmes-megaways-mobile-slot

As with all Microgaming slots these days, Shamrock Holmes Megaways can be played on desktop, mobile and tablet devices as standard. The high definition graphics and animations work well on smartphone screens too. This includes iOS, Android and Windows operating systems.

Shamrock Holmes Megaways Bonus Features

The Shamrock Holmes Megaways slot comes with 3 bonus features in total. You have Rolling Reels for continuous wins, free re-spins with a certain number of guaranteed Megaways and free spins with an unlimited, increasing win multiplier.

Rolling Reels feature

When you get any winning combination, the Rolling Reels feature will be activated. Winning symbols are cleared from the reels and replaced with new symbols. This continues until no more new wins are formed. It can lead to multiple consecutive wins per spin.

Magic Forest Re-Spin feature

There’s a Magic Forest Re-Spin feature which can be triggered in 3 different ways. For all variants, you need 3 gold shamrock coin scatters on the main reels. Then you ned to pixie, leprechaun or pixies plus leprechaun.

Only applying in the base game, this will give you a free re-spin with a certain number of guaranteed Megaways:

Trigger Condition Reward
3 scatters + leprechaun + pixie on extra reel Re-spin with 117,649 guaranteed Megaways
3 scatters + leprechaun on extra reel Re-spin with 32,400 guaranteed Megaways
3 scatters + pixie on extra reel Re-spin with 10,000 guaranteed Megaways

Free Spins feature

shamrock-holmes-megaways-slot-free-spins-feature

Look out for the gold shamrock coins as this is the scatter. 4 gold shamrock coin scatters appearing anywhere on the reels will trigger the Free Spins feature with 10 free spins awarded. Each extra scatter adds 2 more free spins to that tally (i.e. activate with 6 scatters to get 14 free spins).

Beginning with a 2x multiplier, all wins are doubled. Each Rolling Reel trigger increases the multiplier by 1. Like the Unlimited Win Multiplier feature found in many Megaways slots, each win effectively increases the multiplier, with no limits.

Finally, 3 scatters appearing on the extra reel will give you 3 more free spins. 4 scatters will give you 4 more free spins. There’s no limit to how many free spins you can play with.

Shamrock Holmes Megaways Summary – first Megaways slot is entertaining

Ratings
Theme & Symbols








Sounds & Music








Bonus Features








RTP (96.44%)








Max Win (28,500 x)








Originality








The Shamrock Holmes Megaways slot is the first Megaways venture between All41Studios and Microgaming. They’ve chosen a popular theme and used popular bonus features to constitute the gameplay. There’s nothing innovative or unique about the gameplay but it does come together rather nice.

Whilst we’ve seen Rolling Reels (Cascading Wins/Reactions), re-spins and free spins with increasing multipliers many times before, the upbeat soundtrack and theme will melt the hearts of most Megaways aficionados. The key to big wins is to build up the multiplier in the Free Spins feature, which has no limits.

With 28,500 x bet max wins, it puts Shamrock Holmes Megaways amongst the highest paying Irish luck themed slots. The UK’s most popular slot, Rainbow Riches, offers you 500 x bet max wins in comparison. Even Rainbow Riches Megaways only comes with 12,500 x bet top payouts.

In summary, Microgaming has done a good job with Shamrock Holmes Megaways and I’m sure they will add other features found in popular Microgaming slots to future releases.

As far as Megaways slots go, there are better games out there such as Max Megaways and/or Rasputin Megaways (both by Big Time Gaming).

Pros
  • 28,500 x bet max wins
  • High 96.44% RTP rate
  • Microgaming's 1st Megaways slot
Cons
  • Could do with more bonus features

Shamrock Holmes Megaways FAQs

Is there a Shamrock Holmes Megaways demo?

Yes, the Shamrock Holmes Megaways demo is available to play for free here at Online-Slot.co.uk. Join the illusive Irish detective on mobile, tablet, laptop and/or PC devices.

What is the Shamrock Holmes Megaways RTP?

The Shamrock Holmes Megaways RTP rate is 96.44%. Higher than most online slot games, the variance is sky high but has a hit frequency rate of 35.34%.

What is the Shamrock Holmes Megaways max win?

The most you can win in this Irish luck themed game is 28,500 x bet per spin. The key to big wins is from the unlimited multiplier in the free spins.

Are there any Shamrock Holmes Megaways free spins?

Yes, the Free Spins feature begins with a 2x multiplier. Each Rolling Reel win increases the multiplier by 1 with no limits. You can also win additional free spins, again with no limits.

How does the Magic Forest Re-Spin feature work?

The Magic Forest Re-Spin feature can be activated in 3 ways. You will then get a free re-spin with 10,000, 32,400 or 117,649 guaranteed Megaways.

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