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Shamrock Holmes Megaways

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Shamrock Holmes Megaways is an online slot developed by All41 Studios and Microgaming with a maximum of 117,649 winning ways. Features include cascading reels, respins, free spins and i...ncreasing multipliers. The RTP of this medium volatility slot is 96.44% and its top prize is worth 28,000x.

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  • 28,000x top prize
  • Respins easy to trigger
  • Increasing multipliers in free spins
  • Medium variance gameplay
  • Format a bit too familiar
  • Four scatters required for free spins


In Microgaming’s first foray into the world of Megaways slots, we take a trip to a mystical forest to visit Shamrock Holmes. With up to 117,649 winning ways, cascading reels, respins and free spins with increasing multipliers, Shamrock Holmes Megaways offers players an engaging online gaming experience – with a 28,000x top prize to provide impressive winning potential.

Theme and Graphics

Shamrock Holmes Megaways is set in a magical forest with a whimsical tune playing in the background. The reels are designed to look like wood with Celtic-inspired symbols, along with fairies, shamrocks and pots of gold. The game’s soundtrack is nice and calming while the reels are idle but picks up into a full Irish jig while the reels are spinning.

Shamrock Holmes Megaways

How to Play Shamrock Holmes Megaways

It’s easy to get playing Shamrock Holmes Megaways:

  1. Once the game loads, click the icon above the spin button to view the rules and payouts.
  2. Click the settings button to adjust the sound and speed of the game.
  3. Adjust your bet size. You can wager between .20 coins and 20 coins per spin.
  4. Take a look at your autoplay options.
  5. Hit the spin button and enjoy!

RTP and Variance

The RTP (return to player) of Shamrock Holmes Megaways is 96.44%. It’s also a medium variance slot game – which is nice to see amidst all of the highly volatile Megaways games.

How to Win

As a Megaways online slot, Shamrock Holmes features a varying number of winning ways. Each reel can display between 2 and 7 symbols, which determines how many ways to win you get. Up to 117,649 winning ways are available.

Shamrock Holmes himself is the most generous symbol, offering a top prize of 50x your stake. The rest of the symbols are a lot less generous, though, as next highest paying symbol offers a top win of 5x.

Whenever you hit a win, as cascade occurs. This causes winning symbols to disappear and new symbols to take their places. So, the low payouts don’t seem so bad when you can hit several wins on a single spin.
Max-win 28,000x
Volatility Medium
Top RTP 96.44%

Magic Forest Respin

The Magic Forest Re-Spin feature occurs when you land three scatters on the base game, along with specific symbols on the extra reel (the reel that goes along the top of the screen). The symbols on the extra reel will determine the minimum number of Megaways you’ll receive:

  • 3 scatters with the leprechaun and pixies on the extra reel: 117,649 winning ways
  • 3 scatters with the leprechaun on the extra reel: 32,400 winning ways
  • 3 scatters with the pixie on the extra reel: 10,000 winning ways

Shamrock Holmes Megaways Free Spins

When you land four scatters during the base game, you’ll trigger the free spins round. For every additional scatter that lands, two more free spins are added to your initial total. Landing three or four scatters during the bonus will retrigger the round.

During the free spins round in Shamrock Holmes Megaways, every cascade and win will lead to your multiplier increase. This is an unlimited increasing multiplier, so there’s no limit to how high it can climb.

Overall Review

For Microgaming’s first Megaways effort, this is a good start. Shamrock Holmes Megaways uses the same formula that players have come to enjoy in Megaways games like Vikings Unleashed – 117,649 winning ways with free spins and unlimited increasing multipliers. However, there’s a new twist thrown in – the Magic Forest Respin – which spices up the base game.

Great Winning Potential

This respin feature is surprisingly easy to trigger, as it just takes three scatters and a either a leprechaun or a pixie. So, you’ll see it pop up pretty often and, when you land the top option, there is some very impressive winning potential available.

It’s also great that Shamrock Holmes Megaways is a medium variance slot, which you don’t see very often in Megaways games. This means you’re in for a nice mix of larger and smaller wins. It makes the top prize of 28,000x even more elusive but you can look forward to an entertaining experience with regular payouts rather than waiting a while in between big wins.

A Safe Bet

Microgaming is such a big studio that we were expecting something a little bit more grand for its first Megaways slot. Shamrock Holmes Megaways looks amazing and has some nice new features combined with a generous math model, but there is definitely room for more experimentation. So, we hope this developer comes up with some more outside-of-the-box gameplay solution in its next Megaways game.

Disclaimer: Shamrock Holmes Megaways trademark / license is owned by Microgaming, All41 Studios. This site is not endorsed by Microgaming, All41 Studios.

Slot Data
Slot Name: Shamrock Holmes Megaways
Software: Microgaming , All41 Studios
RTP: 96.44%
Volatility: Medium volatility
Paylines: 117649
Reels: 6
Min Bet (all lines covered): £0.20 (GBP)
Max Bet: £20 (GBP)
Top Win: 28000
Features: Wild Symbol, Multiplier, Free Spins, Respins, Medium volatility, 6 Reels, Cascading, Turbo Spin, High Payout, Increasing Multipliers
UK Available in UK? Yes. Microgaming have a UKGC license and are allowed to offer their games at UK licensed casinos.

Shamrock Holmes Megaways Slot FAQs

What is the RTP of Shamrock Holmes Megaways?

Shamrock Holmes Megaways has a payout percentage of 96.44%. Since most slots nowadays have RTPs maxing out a 96.5%, this is a nice, healthy figure.

What is the biggest win available on Shamrock Holmes Megaways?

The top win on Shamrock Holmes Megaways is 28,000x. This is one of the higher top prizes we've seen in the online slots world, with only a few games providing more generous top wins.

How volatile is Shamrock Holmes Megaways?

Shamrock Holmes Megaways is a medium variance slot. This means that you'll cash in a on a mix of larger and smaller wins with a fairly frequent hit rate.

How do you trigger the Magic Forest respins?

Three scatters along with a pixie or leprechaun (or both) will trigger the respins feature – with a minimum guaranteed number of winning ways, starting at 10,000 up to 117,649.

Is there a free spins bonus in Shamrock Holmes Megaways?

Yes, you just need to land four scatters to trigger it. When you do, an increasing multiplier is applied to all wins.

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