Space Miners Slot Review

Expert Rating: 4.5 out of 5
Review by Chris Taylor
Last update 8th February 2022
Review by Chris Taylor
Last update 8th February 2022

Join digging aliens in the Space Miners slot. Powered by Relax Gaming, the action begins on 6 reels and 729 ways to win. Each win gives you a respin with blockers destroyed for more ways to win, up to 1 million ways to win. There are 4 Power Up features which destroy blockers. You will also find a Free Spins feature where unlimited free spins are possible. The number of ways to win can only increase too. Offering 50,000 x stake max wins per spin, find out more in our Space Miners review.

Space Miners Max Win
50,000 x bet
Relax Gaming
Type of Slot
Video Slot
Space Mining
729 to 1 Million
Stakes Range
10p to £20
Bonus Features
Yes (7)
Free Spins/Multiplier
Max Win
50,000 x
Very High

Space Miners Demo

Recommended Casino

Unibet Casino
  • Deposit £10 Get £40 Bonus
  • PayPal Casino
  • 1,000+ Slots
T&C Apply

18+. New Customers Only. Minimum deposit £10. 50x wagering requirement apply. Bonus will expire 30 days after opt-in. Further T&Cs apply. #ad

Best casinos to play Space Miners slot with real money

LeoVegas Casino
  • 10 No Deposit No Wager Spins
  • £100 + 50 Wager-Free Spins
  • 2,650+ Slots
T&C Apply

New players only. No deposit needed. 3 days to claim & 3 day expiry. 10x free spins worth 10p on Book of Dead. Opt in & deposit £10, £25 or £50 within 7 days & further 7 days to wager cash stakes 35x to unlock reward (£50 on 2 deposits). 3 day exp. Wagering/game contributions vary. 25 wager-Free Spins x10p to added to Starburst with each qualifying deposit, 3 day expiry. 18+ #ad

Mr Green Casino
  • Highly reputable online casino
  • 2,000+ slots
  • More promotions than any other casino
T&C Apply

18+. Play Safe. New UK customers only. Opt in required. 1x per customer. Free spins on Lucky Mr Green only Max. 50 free spins at £0.10/spin with 35x wagering. Spins expire 72 hours from issue. Game, country, currency, player restrictions and terms apply #ad

SlotsMillion Casino
  • £20 Bonus + 100 Bonus Spins
  • 3,100+ Slots
  • Fast Payouts
T&C Apply

New customers only. Min deposit £10. Bonus win limitation: x10 the value of the bonus amount granted. 40 spins upon first deposit, with 2×30 spins 24 and 48 hours thereafter. Spins coin value: £0.01. Winnings from spins are bonus funds. 48x wagering required for any bonus funds; within 7 days for deposit bonus and 24h for winnings from spins. Max bet £3: game restrictions apply. Full Tx & Cs apply. 18+. – PLAY RESPONSIBLY #ad

Space Miners Slot RTP, Details & Wager Limits

Reels/Paylines: 6 reels + up to 1 million ways to win

Stakes Range: 10p to £20 per spin

RTP: 96.47%

Max Win: 50,000 x stake per spin

The Space Miners slot begins with 6 reels, 3 rows and 729 ways to win. 3, 4, 5 or 6 matching symbols in any position on 3 or more adjacent reels (beginning from reel 1) will constitute a winning combination.

Like with other Relax Gaming slots, you can spin away from 10p to £20 a spin. There’s a Bet button below the reels where the plus and minus buttons allow you to change to your needs. You will also see buttons either side of the main spin button. If enables the Turbo Mode for quicker spins and the other brings the Autoplay function into play. Both these options won’t be available if you’re in the UK.

The Space Miners RTP is 96.47%. This return rate is well above the 96% online slots average. The hit frequency rate is 19.8% meaning about a fifth of spins will give you a winning outcome.

The volatility is high so expect smaller wins most of the time. Space Miners does have the potential to reward you with big payouts as the maximum win per spin is 50,000 x your total stake. These will come when you expand to number of ways to win to 1 million.

Theme – join working aliens on a quest for riches

Theme: Space Mining

High Value Symbol: Red Alien

Compatibility: Mobile, Tablet, Desktop


With a space mining theme, the Space Miners slot is set in outer space. Visually, it has cartoon style graphics and looks a little like Play ‘n GO’s Reactoonz. With aliens zooming around in the background in their spaceships, the symbols are bright and colourful.

Symbols include 4 different coloured crystals and 5 mining aliens. The red alien is the highest paying symbol giving you 0.5, 0.7, 1 or 5 x your total stake for 3, 4, 5 or 6 in combination.

The space cart full of crystals is the wild symbol and will always expand to fill all open positions on the reel. It also substitutes for all other symbols to make a winning combination where possibly. You will also see Power Up symbols which trigger a variety of Power Up features. Finally, there’s a spaceship bonus scatter.

Symbol Payout
space-miners-slot-blue-crystal-symbolBlue Crystal 3, 4, 5 or 6 = 0.1, 0.2, 0.3 or 0.4 x stake
space-miners-slot-pink-crystal-symbolPink Crystal 3, 4, 5 or 6 = 0.1, 0.2, 0.3 or 0.4 x stake
space-miners-slot-green-crystal-symbolGreen Crystal 3, 4, 5 or 6 = 0.1, 0.2, 0.3 or 0.4 x stake
space-miners-slot-orange-crystal-symbolOrange Crystal 3, 4, 5 or 6 = 0.1, 0.2, 0.3 or 0.4 x stake
space-miners-slot-blue-alien-symbolElf 3, 4, 5 or 6 = 0.2, 0.3, 0.4 or 0.6 x stake
space-miners-slot-pink-alien-symbolPink Alien 3, 4, 5 or 6 = 0.2, 0.3, 0.4 or 0.6 x stake
space-miners-slot-green-alien-symbolGreen Alien 3, 4, 5 or 6 = 0.3, 0.5, 0.7 or 1 x stake
space-miners-slot-orange-alien-symbolOrange Alien 3, 4, 5 or 6 = 0.3, 0.5, 0.7 or 1 x stake
space-miners-slot-red-alien-symbolRed Alien 3, 4, 5 or 6 = 0.5, 0.7, 1 or 5 x stake
space-miners-slot-space-cart-wild-symbolSpace Cart Wild Substitutes for all symbols + expands
space-miners-slot-spaceship-bonus-scatter-symbolSpaceship Bonus Scatter 3+ triggers Free Spins feature

Space Miners Mobile


Produced using HTML5 technology, you can play Space Miners on mobile, tablet and tablet devices. The potentially large grid size will work better on a laptop or PC where the screen is bigger. It does play out perfectly on a mobile though.

Space Miners Bonus Features

The Space Miner slot has a total of 7 bonus features. With respins and increasing ways to win, Power Up features can destroy blocks on vertically, horizontally, both horizontally and vertically and in a 3×3 block. The main attraction is the Free Spins feature where you can play with unlimited free spins where the number of ways to win can only increase.

Respin feature

When you land a winning combination, the Respin feature is activated. The winning symbols are removed from the reels with new symbols replacing them. Blockers are then destroyed to bring more symbols into play and increase the number of ways to win.

If you destroy all blockers, you will benefit from 1 million ways to win. Wild symbols expand to fill all open positions on the reel which helps you achieve winning combinations.

Power Up features

In the base game, there are 2 Power Up features to benefit from. In the free spins, there are 4. If you get a win, you will destroy blockers. Destroying blockers with a Power Up will trigger the respective feature. With the possibility of Power Ups interacting with each other, here’s what they offer:

Horizontal Power Up  Destroys all blockers on a horizontal line
Vertical Power Up  Destroys all blockers on a vertical line
Cross Power Up (during free spins only) Destroys all blockers on a horizontal and vertical line
3×3 Power Up (during free spins only) Destroys all blockers in a 3×3 area

Free Spins feature


The Free Spins feature is activated when you collect 3 or more spaceship bonus scatters on a base game spin. With 6 free spins awarded, any extra scatters will give you 2 additional free spins. Landing 5 scatters for example will see you begin with 10 free spins. Landing a scatter during the feature will give you 1 extra free spin, with no limits.

During the feature, any blockers that are destroyed and removed will remain open for the remainder of the feature. This means the number of ways to win can only increase. The 2 additional Power Up features (Cross + 3×3) will certainly help.

Finally, there’s a Buy feature. Not available to UK players, you can buy your way into the free spins for 100 x your total stake. The RTP rate also increases up to 97.14% which is a high return rate.

Space Miners Review Summary – superb space adventure

Theme & Symbols

Sounds & Music

Bonus Features

RTP (96.47%)

Max Win (50,000 x)


With a cartoon style graphics, you’d easily be forgiven that the Space Miners slot is a fun game with cutesy gameplay. With the gameplay being quite simple, these digging aliens can pack quite the punch.

The Power Up features can increase the number of ways to win and win potential at the same time. I found the Cross Power Up feature during the free spins to be the most lucrative.

In summary, Space Miners is all about getting successive wins to destroy the blockers and increase the number of ways to win up to 1 million. With expanding wilds and Power Ups, the action can go crazy on any spin, whether you’re in the base game or free spins.

If you want more mining action, Relax Gaming’s very own Mega Mine is recommended. With up to 32,768 ways to win, it also comes with 50,000 x stake max wins.

Want to dig for more riches? Fire in the Hole from Nolimit City is superb. With 60,000 x stake top payouts, reels can explode for up to 46,656 ways to win. There’s a Lucky Wagon Spins feature which give you cash prizes as well as special enhancers.

  • 50,000 x stake max wins
  • Infinite free spins
  • Fun & appealing theme
  • Very high variance

Space Miners FAQs

What is the Space Miners RTP?

The Space Miners RTP rate is 96.47%. Highly volatile, expect a win every 5 spins on average. If you use the Buy feature, the RTP increases up to 97.14%.

What is the Space Miners max win?

The maximum win per spin is 50,000 x your total stake. This can be won on any spin, including the base game. The bigger wins will come when you increase the number of ways to win up to 1 million.

Are there any Space Miners free spins?

Yes, the Free Spins feature can give you unlimited free spins. With a total of 4 Power Up features in play, the number of ways to win can only increase which significantly increases your winning potential.

Is there a Space Miners demo?

Yes, the Space Miners free play version can be found here at This alien adventure can be enjoyed on all devices including mobiles, tablets, laptops and PCs.