Mega Mine Slot Review

Expert Rating: 4.5 out of 5
Review by Chris Taylor
Last update 20th October 2021
Review by Chris Taylor
Last update 20th October 2021

Try and dig up a jackpot that can get as high as 50,000 x stake in the Mega Mine slot, a colourful 5 reel game from Relax Gaming. Central to the action here are special Mystery Nudging Stacks which can appear on all reels and contain up to 8 symbols. Fully expanded, the reels can combine to offer 32,768 ways to win. Trigger the Mega Free Spins feature and you’ll play a minimum of 6 free spins. Expect to see the Nudging Stacks more regularly during the free spins than during base game play too. Find out more about this underground adventure in our deep dive Mega Mine review.

Mega Mine Max Win
50,000 x bet
Relax Gaming
Type of Slot
Video Slot
Stakes Range
10p to £20
Bonus Features
Yes (3)
Free Spins/Multiplier
Max Win
50,000 x
Very High

Mega Mine Demo

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Mega Mine Slot RTP, Details & Wager Limits

Reels/Paylines: 5 reels + up to 32,678 ways to win

Stakes Range: 10p to £20 per spin

RTP: 96.15%

Max Win: 50,000 x stake per spin

The Mega Mine slot is played using the Nudging Ways engine. The action plays out on a 5 reel machine. The number of ways to win can vary from a minimum of 32, right up to a maximum of 32,768. This depends on the Nudging Mystery Stacks. (more details below). In all cases, winning combination are formed by land 3 or more matching symbols, from left to right on adjacent reels, starting from reel 1.

You can go digging for jackpot glory at bet levels that range from between 10p and £20 per spin. Use the + and – buttons next to the Bet box or head to the setting, click on the $ icon then choose from the stake levels shown. Also head to the Settings for the paytable. Payout amounts are displayed as cash and are relative to your current stake level.

The Mega Mine RTP is 96.15%. If you buy your way into the free spins, the RTP rises to 97%. The hit frequency rate is 25.46%. This will give you a win every 4 spins on average. The variance is high with the maximum win a massive 50,000 x your total stake.

Theme – Audio & Design Features – go digging for gems

Theme: Mining

High Value Symbol: Red Square Gemstone

Compatibility: Mobile, Tablet, Desktop


With a mining theme, the design in the Mega Mine slot is quite simply done. Set against a rocky backdrop, you’ll see the entrance to a mine and a mini railway.

The visuals here are simply done but do the job nicely. There’s a Wild West-style soundtrack playing in the background while you spin. It’s a good fit for the theme and delivers plenty of atmosphere.

The reels are set within a wooden mine frame. There you’ll find 5 lower value gemstone symbols embedded in blocks of stone. They’re joined by 5 more lucrative square gems. The top symbol is the red square. Land 3, 4 or 5 of these on adjacent reels and you’ll an award equal to 1, 2.5 or 5 x your total stake.

The payouts might sound on the skinny side but the Mystery Stacks mean that it’s possible to create some big clusters of matching symbols with potential payouts to match. There’s also a wild which is only active during the free spins. The scatters can only land courtesy of a Nudging Mystery Stack. Here’s a list of all symbols you’ll encounter:

Symbol Payouts/Info
mega-mine-slot-blue-gemstone-symbolBlue Gemstone 3, 4 or 5 = 0.1, 0.2 or 0.3 x stake
mega-mine-slot-purple-gemstone-symbolPurple Gemstone 3, 4 or 5 = 0.1, 0.2 or 0.3 x stake
mega-mine-slot-green-gemstone-symbolGreen Gemstone 3, 4 or 5 = 0.1, 0.2 or 0.3 x stake
mega-mine-slot-yellow-gemstone-symbolYellow Gemstone 3, 4 or 5 = 0.1, 0.2 or 0.3 x stake
mega-mine-slot-red-gemstone-symbolRed Gemstone 3, 4 or 5 = 0.1, 0.2 or 0.3 x stake
mega-mine-slot-blue-square-gem-symbolBlue Square Gem 3, 4 or 5 = 0.3, 0.7 or 1 x stake
mega-mine-slot-purple-square-gem-symbolPurple Square Gem 3, 4 or 5 = 0.3, 0.8 or 1.5 x stake
mega-mine-slot-green-square-gem-symbolGreen Square Gem 3, 4 or 5 = 0.4, 1 or 2 x stake
mega-mine-slot-yellow-square-gem-symbolYellow Square Gem 3, 4 or 5 = 0.5, 1 or 2.5 x stake
mega-mine-slot-red-square-gem-symbolRed Square Gem 3, 4 or 5 = 1, 2.5 or 5 x stake
mega-mine-slot-nudging-mystery-stack-symbolNudging Mystery Stack Triggers Nudging Mystery Stacks feature
mega-mine-slot-scatter-symbolScatter 2+ triggers Mega Free Spins feature
mega-mine-slot-wild-symbolWild Substitutes for all symbols + only appears in free spins

Mega Mine Mobile


Mega Mine is available to play on all devices including tablets and mobiles as well as desktop computers. Despite offering up to 32,768 ways to win, all symbols will appear within the 5×4 reel set meaning its perfectly playable on mobile devices.

Mega Mine Bonus Features

With 3 bonus features, the gameplay in Mega Mine combines the familiar alongside something more innovative. Central to much of the best action are the Mystery Nudging Stacks. There’s also a free spins bonus where the Mystery Stacks can also come into play.

Nudging Mystery Stacks feature


The bearded miner pushing the cart is the Nudging Mystery Stack symbol. These can land on all 5 reel. Each stack comes with a number between 2 and 5 attached. The Nudging Mystery Stack nudge up or down until they cover the whole of the reel.

Each time a nudge happens, the value increases by 1, up to a maximum of 8. If all 5 reels contain 8 symbols each, you’ll benefit from 32,768 ways to win (8x8x8x8x8).

When the nudging has been completed and the Mystery Stacks have filled a row, the Mystery Stacks will all reveal the same matching symbol. Unusually, 2 payout considerations are made here. Initially, when the Nudging Mystery Stacks first appear then after the nudges have been completed and the symbol transformation has taken place. This is known as the Nudging Mystery Stacks feature.

Mega Free Spins feature


Scatter symbols can only be revealed via the Nudging Mystery Stacks. Unveil 2 scatter symbols and you’ll trigger the Mega Free Spins feature and with it 6 free spins. Each extra scatter from the triggering spins adds 1 more free spin to that total.

The gameplay during the free spins is similar to the base game. There are a couple of tweaks worth noting though. Firstly, you can expect to see more Nudging Mystery Stacks during the free spins than during the base game.

Second, the Nudging Mystery Stacks can transform into wilds during the free spins which can give your winning chances a real leg up.

In some territories, players can buy your way into the Mega Free Spins feature at a cost of 70 x your total stake. Called the Buy Free Spins feature, this option isn’t available to players in the UK though.

Mega Mine Review Summary – try and detonate a 50,000 x stake win

Theme & Symbols

Sounds & Music

Bonus Features

RTP (96.15%)

Max Win (50,000 x)


The Mega Mine slot offers something a little different thanks to the Nudging Mystery Stacks. These increase the number of ways up to 32,678 and can reveal a high paying symbol.

These can really come into their own during the free spins. This is because they appear more often than in the base game and the Nudging Mystery Stacks can also transform to reveal wilds.

The design is rather simple but it’s well suited to a slot where the number of symbols on each reel can change so often. It’s possible to detonate some huge rewards here too with maximum payouts of 50,000 x your total stake.

If you like to go digging for treasure, Mega Mine is one to consider. Other options include Nolimit City’s Fire in the Hole which comes with 60,000 x stake wins. Big Time Gaming’s Bonanza Megapays offers 4 progressive jackpots as well as free spins, increasing multipliers and 17,926 x stake max wins.

  • 50,000 x stake max wins possible
  • First slot to use Nudging Ways engine
  • Well designed
  • Very volatile

Mega Mine FAQs

What is the Mega Mine RTP?

The Mega Mine RTP rate is 96.15% which is just above average. If you buy your way into the free spins, the RTP increases to 97%. The variance is very high.

What is the Mega Mine max win?

The maximum win in Mega Mine is a massive 50,000 x your total stake. The key to big wins come from the Nudging Mystery Stacks which can increase the number of ways to win up to 32,678.

What are Nudging Mystery Stacks?

When these lands, they trigger the Nudging Mystery Stacks feature and nudge to fill the whole of the reel. They then reveal the same matching symbol. If all 5 reels with stacks have 8 symbols, you’ll have 32,748 ways to win.

Are there any Mega Mine free spins?

Yes, the Mystery Stacks can reveal scatters with 2 or more triggering the Mega Free Spins feature. You will benefit from more Nudging Mystery Stacks too. Also, Nudging Mystery Stacks can reveal wilds for bigger win potential.