Shamrock Holmes Megaways Slot Demo
Shamrock Holmes Megaways Slot Review
Shamrock Holmes Megaways is a six reel video slot from All41 Studios on the Microgaming platform. The game uses the licensed Megaways mechanism, so each reel can show between two and seven symbols on every spin. An extra horizontal reel runs across the middle four reels. That setup gives up to 117,649 ways to win. The theme mixes an Irish leprechaun with a Sherlock Holmes style detective, set in a magical forest packed with Rolling Reels and free spins.
The betting range in Shamrock Holmes Megaways runs from 0.20 up to 20 credits per spin, which suits most bankrolls without turning it into a pure high roller slot. When I played, the game felt like a classic Megaways release with plenty of cascades and sudden hits. The Magic Forest Respins and rising multipliers in the bonus round keep the action engaging, even though the base game can go quiet for stretches.

RTP and Variance in Shamrock Holmes Megaways
The stated RTP for Shamrock Holmes Megaways is 96.44 percent, which puts it slightly above the average online slot. The variance is high, so wins land less frequently but can reach impressive levels when the features line up. From my sessions, that rating feels accurate. I had long spells of dead spins mixed with sudden bursts from respins and free spins. I treat this one as a game where I keep my bet size on the conservative side.
The Design of Shamrock Holmes Megaways
The design of Shamrock Holmes Megaways centres on a beautifully lit forest backdrop with a faint magical glow. The reels sit in the centre of the screen, framed by greenery and soft lighting. The main set holds six vertical reels, while the extra horizontal reel floats across the top of the middle four. Below the grid, you see your current credits and stake, and to the right sit the spin button, bet controls, autoplay and paytable access.
Graphically, Shamrock Holmes Megaways is not over the top, yet the symbols and animations work well with the theme. Winning combinations trigger small bursts of colour as symbols explode and make way for new ones. The soundtrack is light and catchy, giving a relaxed Irish vibe rather than something too intense. Although I am not usually drawn to leprechaun themed games, the detective twist and the calm forest atmosphere make this slot pleasant to grind.
How Does Shamrock Holmes Megaways Work?
Shamrock Holmes Megaways follows the standard Megaways format. There are six reels and each reel can show between two and seven symbols on every spin, chosen at random. You form wins by landing three or more matching symbols on adjacent reels starting from the leftmost reel. Because the number of symbols varies, you can hit up to 117,649 Megaways when all reels show the maximum height. You set your stake, hit spin and the game does the rest.
When a winning combination lands, the Rolling Reels feature kicks in. All symbols that form part of the win are removed from the grid, then new ones fall into the empty spaces from above. The extra horizontal reel also refreshes where needed. This gives another chance to create fresh combinations within the same paid spin. Chain reactions can build nicely, especially when wilds join the party and when you are already in free spins with a multiplier active.
The Symbols & Payouts in Shamrock Holmes Megaways
The paytable in Shamrock Holmes Megaways uses thirteen symbols in total. The low paying group is made up of the playing card royals from 9 through to A. These appear stacked often and help keep small wins ticking over. For a six of a kind hit, 9, 10 and J pay 1x your stake, while Q, K and A step that up slightly to 1.5x. On a busy Megaways screen those small values still add up across multiple combinations.
Premium symbols fit the Irish fantasy theme and carry the real weight. A bile style wildflower pays 2x your bet for six in a row. The Shamrock pays 2.5x for six of a kind. The pixie with a pot of gold climbs to 5x your stake for six. The top symbol is Shamrock Holmes himself, paying 50x your stake for six across the reels. Line that up with a decent multiplier and the potential jumps quickly.
The wild symbol is a golden W on a multicoloured background. It substitutes for all regular symbols apart from the scatter and any special respin symbols. In practice, you mostly see wilds on the extra horizontal reel above the main grid, dropping into winning combos and helping complete more ways. The scatter is a gold coin and pays in any position. Four or more scatters trigger the free spins feature, and extra scatters add extra free spins on top.
Symbols and Paytable
| Symbol | Quantity | Payout |
|---|---|---|
|
| 6 | x50 |
| 5 | x25 | |
| 4 | x10 | |
| 3 | x2 | |
| 2 | x1 | |
|
| 6 | x5 |
| 5 | x3 | |
| 4 | x2 | |
| 3 | x1 | |
|
| 6 | x2.5 |
| 5 | x1 | |
| 4 | x0.5 | |
| 3 | x0.3 | |
|
| 6 | x2 |
| 5 | x0.8 | |
| 4 | x0.5 | |
| 3 | x0.3 | |
|
| 6 | x1.5 |
| 5 | x0.6 | |
| 4 | x0.4 | |
| 3 | x0.2 | |
|
| 6 | x1.5 |
| 5 | x0.6 | |
| 4 | x0.4 | |
| 3 | x0.2 | |
|
| 6 | x1.5 |
| 5 | x0.6 | |
| 4 | x0.4 | |
| 3 | x0.2 | |
|
| 6 | x1 |
| 5 | x0.4 | |
| 4 | x0.2 | |
| 3 | x0.1 | |
|
| 6 | x1 |
| 5 | x0.4 | |
| 4 | x0.2 | |
| 3 | x0.1 | |
|
| 6 | x1 |
| 5 | x0.4 | |
| 4 | x0.2 | |
| 3 | x0.1 | |
|
|
Scatter | |
|
|
Wild | |
Re-spin Feature and Cascading Reels in Shamrock Holmes Megaways
Cascading, or Rolling Reels, are at the heart of Shamrock Holmes Megaways. Every time a winning way appears, those symbols vanish and new ones fall into their place. This can chain several times in a single paid spin and is important both in the base game and during free spins, where each successive cascade increases the win multiplier. I have seen modest starting wins snowball because the cascades just kept rolling with fresh matches appearing.
On top of that sits the Magic Forest Respins feature. To trigger this, you need specific combinations of scatters on the main reels and character symbols on the horizontal reel. Three scatters plus the pixie award a respin with 10,000 Megaways active. Three scatters plus Shamrock Holmes give a respin at 32,400 Megaways. Hit three scatters with both Shamrock Holmes and the pixie on the horizontal reel and you get a respin on the full 117,649 Megaways layout.

Max Win and My Verdict on Shamrock Holmes Megaways
The official maximum win in Shamrock Holmes Megaways sits at around 28,000x your bet. With the 20 credit maximum stake that gives a cap of 560,000 credits from a single spin, though outcomes on that scale are rare. Four scatters trigger 10 free spins, and each extra scatter adds two more. The free spins round starts with a 2x win multiplier that increases by one after every Rolling Reels win, with no upper limit. Extra scatters during free spins retrigger further spins.
From a player’s point of view, Shamrock Holmes Megaways feels like a well thought out Megaways slot with a solid mix of features. The Magic Forest Respins keep the base game alive, while wilds on the top reel and Rolling Reels help string wins together. The high volatility and long dry spells will not suit every mood, yet the game offers strong potential and a fun Irish detective theme. I keep it in my rotation when I fancy a volatile Megaways grind.
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FAQs About Shamrock Holmes Megaways
Absolutely! You can enjoy Shamrock Holmes Megaways for free on our website without registration. Our partner casinos of Microgaming also usually offer demo mode access.
Yes, to win real money in Shamrock Holmes Megaways, you'll need to create an account at a licensed casino site. You can then play for real and win up to x28000.
Yes, Shamrock Holmes Megaways is fully optimized for mobile devices and runs smoothly on any devices.
Compare Shamrock Holmes Megaways With Other Slots
| Slot | Rating | Software | Release Date | Volatility | RTP | Bet Range | Max Win | Number of Reels | Number of Betways |
|---|---|---|---|---|---|---|---|---|---|
| Shamrock Holmes Megaways | 6 | Microgaming | 2020-12-08 | Average | 96.44% | 0.20 - 20 | x28000 | 6 | 324 - 117649 |
| Forgotten Island Megaways | 6 | Microgaming | 2020-12-08 | High | 96.25% | 0.20 - 20 | x7000 | 6 | 117649 |
| Golden Stallion | 6 | Microgaming | 2020-11-26 | High | 96.17% | 0.20 - 50 | x6000 | 5 | 20 |
| Divine Diamonds | Microgaming | 2021-06-01 | Average | 96.24% | 0.20 - 120 | x2250 | 5 | 20 | |
| 5 Star Knockout | Microgaming | 2022-01-27 | Average | 96.09% | 0.20 - 50 | x4500 | 5 | 20 | |
| Ancient Fortunes: Zeus | Microgaming | 2019-04-10 | Average | 96.02% | 0.10 - 140 | x1000 | 5 | 10 | |
| Lara Croft Temples and Tombs | Microgaming | 2019-05-08 | High | 96.05% | 0.20 - 20 | x5000 | 5 | 243 | |
| Book of Oz Lock ‘N Spin | Microgaming | 2019-09-25 | High | 96.6% | 0.10 - 25 | x5000 | 5 | 10 | |
| Playboy Gold Jackpots | Microgaming | 2019-11-25 | Average | 96.08% | 0.10 - 150 | x2500 | 5 | 30 | |
| African Quest | Microgaming | 2020-01-21 | High | 96.52% | 0.10 - 15 | x5600 | 5 | 1024 | |
| Attack on Retro | Microgaming | 2020-03-03 | High | 96.08% | 0.10 - 20 | x5000 | 5 | 10 | |
| Absolootly Mad: Mega Moolah | 7 | Microgaming | 2020-04-07 | Average | 96.02% | 0.20 - 50 | x2343 | 5 | 243 |
| Diamond Inferno | Microgaming | 2020-07-21 | Average | 96.19% | 0.20 - 20 | x11750 | 5 | ||
| Alchemy Fortunes | 7 | Microgaming | 2020-11-11 | High | 96.41% | 0.20 - 100 | x1100 | 7 | |
| Tiki Reward | 7 | Microgaming | 2020-10-15 | High | 96.32% | 0.20 - 100 | x1000 | 5 | 50 |
| Wanted Outlaws Nobleways | 7 | Microgaming | 2020-09-27 | High | 96.41% | 0.10 - 100 | x2500 | 5 | 3125 |
| Book of Atem | 7 | Microgaming | 2020-08-12 | High | 96.45% | 94.01% | 92.05% | 0.10 - 25 | x5000 | 5 | 10 |
| Mayan Eagle | 7 | Microgaming | 2020-07-07 | High | 96.32% | 0.20 - 20 | x13000 | 6 | 15625 |
| All Win FC | 5 | Microgaming | 2020-05-19 | High | 96.12% | 0.10 - 100 | x500 | 5 | 10 |
| Electric Avenue | 5 | Microgaming | 2020-05-12 | High | 96.37% | 95.49% | 94.02% | 92.05% | 0.20 - 30 | x6833 | 6 | 4096 |
| Arena of Gold | 9.5 | Microgaming | 2020-04-15 | Average | 96.20% | 0.10 - 50 | x2500 | 5 | 25 |
| Lock A Luck | 7 | Microgaming | 2019-10-30 | Average | 96.37% | 0.20 - 60 | x1333 | 5 | 243 |
| Magic of Sahara | 7 | Microgaming | 2019-07-15 | Average | 95.29% | 0.09 - 45 | x2400 | 5 | 9 |
| Le Kaffee Bar | 6 | Microgaming | 2019-05-16 | Low | 96.51% | 0.30 - 30 | x2833 | 5 | 243 |
| Bookie of Odds | 8 | Microgaming | 2019-03-06 | High | 96.5% | 0.10 - 25 | x5000 | 5 | 10 |
| Holmes: Reel Detective | Kalamba Games | 2022-01-13 | High | 96% | 0.50 - 50 | x20550 | 6 | 4096 | |
| Holmes & the Stolen Stones | 9.5 | Yggdrasil Gaming | 2015-09-09 | Low | 96.8% | 0.20 - 40 | x600 | 5 | 20 |
| 3 Shamrock Pots: Power Combo | 7 | All41 Studios | 2024-09-30 | Average | 96.4% | 0.20 - 40 | x12320 | 5 | 40 |
| Shamrock Money Pot 10K ways | 7.3 | Relax Gaming | 2022-08-11 | High | 96.16% | 0.20 - 24 | x12309 | 6 | 10000 |
| Shamrock Quest | 5 | Habanero | 2025-02-25 | High | 96.73% | 0.20 - 10 | x10000 | 5 | 25 |