Find Best Alien Themed Video Slots

Top Slot Games with Space & Alien Themes

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It’s a well-known fact, slots are the most popular category in casino entertainment. So many providers develop and launch games every week.

With so much material to choose from, it can be hard to pick a favourite title.

Even picking out favourite themes might be tricky if you enjoy diverse content. However, we noticed that one theme particularly stands out. Year after year, dozens of titles appear with the space theme. And the universe is so vast that there are many things to explore.

That is why we decided to compile a list of top 8 games that centre around aliens and space:

Which Are the Best Space Themed Slot Games

Get ready for an intergalactic adventure, as these games are out-of-this-world!

Let’s have a look at the games that we prepared for you.


1.   Starburst – NetEnt

  • Release Year: 2013
  • Reels: 5
  • Volatility: Low
  • RTP: 96.09%
  • Min/Max Bet: €0.01/€100
  • Max Payout: 50,000 coins (500x the stake)

Starburst is one of the most popular NetEnt releases of all time.

The provider created this game back in 2013 and, as you know, it is still prevalent today. It is not rare to find amazing Welcome Bonuses and promotions offering Free Spins for this slot. The reason why Starburst is so popular is that it is quite straightforward. The game interface offers a simplified view of all game settings, while the focus remains fixated on the reels.

This galactic adventure features low volatility and 96.1% RTP. The technical background signals a steady flow of the game, with superb wins when you trigger the special features. The 5×3 grid offers ten paylines that pay both ways. Overall, if you want to explore this theme, Starburst is our top recommendation.


2.   Reactoonz – Play’n GO

  • Release Year: 2017
  • Reels: 7
  • Volatility: High
  • RTP: 94.51% (84.51% – 96.51%)
  • Min/Max Bet: €0.20/€100
  • Max Payout: 457,000 coins (4,570x the stake)

The second video slot on our list is of Play’n GO origin.

Reactoonz is another slot machine that is famous all over the world. Online casinos are rushing to implement the game in their lobbies, often displaying the game right at the entrance. What is so special about Reactoonz, you might ask? Well, there are many benefits to playing this game.

The cluster win slot offers you a chance to score 4,570x your stake in a single spin. It is highly volatile, so you need a stroke of luck to trigger a more significant win. To win, players must land five identical symbols in adjacent positions. Another perk of playing Reactoonz is that the provider gave the operators a chance to set the RTP however they like. Before you start playing this game, check the RTP rate because it can go from 84.51% to 96.51%. The usual percentage found in most casinos is 94.51% RTP.


3.   Out of This World – Betsoft

  • Release Year: 2011
  • Reels: 5
  • Volatility: Low
  • RTP: 94.5%
  • Min/Max Bet: €0.02/€45
  • Max Payout: 20,000 coins

Betsoft Gaming’s Out of This World slot is a classic alien-themed video slot.

The game appeared in online casinos back in 2011, and it is still a trendy pick for the players. The beauty of this game lies in the engaging gameplay made possible by the five reels and nine paylines.

Aliens, spaceships, and distant galaxies are the main concepts of this game. These sci-fi elements complete the 5-reel adventure while you chase planets, aliens, numbers and letter symbols on the reels. Betsoft included nine paylines that can pay both ways, which essentially means there are 18 ways to win.


4.   Astro Legends: Lyra and Erion – Microgaming

  • Release Year: 2018
  • Reels: 9
  • Volatility: Medium
  • RTP: 96.4%
  • Min/Max Bet: €0.10/€10
  • Max Payout: 15,000x Line Bet

Astro Legends: Lyra and Erion video slot is one of the most exciting video slots that we have ever seen.

The game is a groovy mixture of funk-synth and alien music elements set in deep space. It’s unbelievably captivating. The main protagonist Lyra is a musical guardian who creates funky space music for her intergalactic audiences.

This is just the start of the amazing story that follows the game. The immersive title has 96.4% RTP and an innovative reel grid that reminds us of a spaceship. Foxium developed the cluster pay slot exclusively for Microgaming.


5.   Space Invaders – Playtech

  • Release Year: 2016
  • Reels: 5
  • Volatility: Medium
  • RTP: 96.16%
  • Min/Max Bet: €0.10/€20
  • Max Payout: 3,000 coins

Space Invaders is the first of two space-themed slots by Playtech.

Playtech, as one of the most successful game developers, creates games that suit everyone’s tastes. This 2016 release comes armed with medium volatility and a proper 96.16% RTP.

Space Invaders is a video slot rendition of Tomohiro Nishikado’s fantastic 1978 arcade release. Playtech’s version is as faithful to the original as you would expect. Of course, the innovative developer introduced a couple of its unique features as well, giving it a familiar Playtech stamp.

The arcade-turned-slot game is not built for massive payouts. You can win up to 455x the stake, and only if you are fortunate. Nevertheless, it is surprisingly entertaining and easy to play.


6.   Space Digger – Playtech

  • Release Year: 2019
  • Reels: 5
  • Volatility: Low-Medium
  • RTP: 95.94%
  • Min/Max Bet: €0.10/€500
  • Max Payout: 125,000 coins (250x the stake)

Gemstones have a special place in our slot-loving hearts.

The games that feature precious rocks and stones are top-rated in the slot community. Add aliens and space in the mix, and you get a stellar adventure. Playtech’s Space Digger is one of the freshest releases on our list. It came out in July 2019. The famous game manufacturer made sure to include a host of different features, as well as decent low-medium volatility. You have 20 betways at your disposal in this 5-reel adventure.

The max payout for this game is only 250x the stake. That is great for fun-loving players, but high rollers with an affinity for massive payouts are probably not very interested in this title.


7.   Cosmic Fortune – NetEnt

  • Release Year: 2014
  • Reels: 5
  • Volatility: Low
  • RTP: 96.9%
  • Min/Max Bet: €0.15/€75
  • Max Payout: Progressive Jackpot

Net Entertainment is the absolute king of the space-themed slots. The provider has so many amazing games that happen in space that it is hard to decide what include here. The best example is Cosmic Fortune. This is an exceptional space adventure that NetEnt launched in 2014. You know what they say, old is gold!

Cosmic Fortune is brimming with special features. It is one of the first video slots that NetEnt boosted with five different jackpots, three of which are progressive. The cosmic adventure also boasts the Avalanche™ reel mechanics, a well-known NetEnt product. Low volatility and 96.9% RTP mean that the game is very generous when it comes to winning potential.


8. Queen of Mars – Merkur Gaming

  • Release Year: 2018
  • Reels: 5
  • Volatility: Medium
  • RTP: 95.94%
  • Min/Max Bet: €0.10/€20
  • Max Payout: 100,000 coins (5,000x the stake)

Merkur Gaming’s 2019 release Queen of Mars is quite a unique-looking slot. The provider gathered inspiration from ancient civilizations and futuristic dystopian works simultaneously. Queen of Mars lets you explore the Red Planet where the Queen rules over her people and vast territories.

The five reels are encased in gold, along with most symbols that you encounter in your spins. However, the mix of futurism and ancient elements makes for an interesting combination. It has the lowest RTP rate on our list (95.94%). You can access the game via any device that you like in Merkur Gaming’s online casinos.


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