The Top Space Slots Online: Play Free Space Slots or For Money

Ever since humans have been able to set their sights towards the stars and skies above, they have questioned what awaits beyond the great unknown. Therefore, it should come as no surprise that game developers have been drawing inspiration from the cosmos for years. Luckily for all of the stargazing players out there, we’ve compiled the essential rundown of the best space slots out there for you to enjoy. Keep reading to learn more!

Payout (RTP) User Rating Where to Play Terms
97.86% 4.9/5 18+. For new players only. Terms and conditions apply . Please play responsibly
97.05% 4.8/5 18+. Full terms Apply.
97.00% 4.7/5
97.00% 4.6/5 New eligible UK players only. Select Casino offer on sign-up. Spins must be claimed on ‘’My Offers’’ page within 14 days of sign-up. Spins for Book of Dead game only and have a £0.10 value each; expire 7 days from claim. 35x wagering on eligible slots before winnings are converted to cash. Play Responsibly. 18+ Click for full T&C’s.
96.9% 4.4/5 18+
96.8% 4.3/5 New Customers Only, 18+. Spins: 20 on registration, 180 after deposit, winnings given as bonus funds, 20x wagering. Spins and bonus wagering on Age of the Gods games only. Welcome bonus: £20 min deposit, max bonus £100, wagering 40x. Game weights apply. Betting limits – slots: £5, all other games: 10% of bonus amount.
96.80% 4.2/5 18+
96.6% 4.2/5 Minimum deposit: First deposit € 10. Max. Bonus: € 150. Offer applies to the first deposit. Offer only applies to new players. The spins are awarded as follows: 50 spins on book of dead plus a 100% bonus on your first deposit up to € 150. You will receive an additional 50 spins on book of dead when you make your deposit on the second day of at least € 20 and another 50 spins when you make a deposit on the third day (at least € 20). Winnings from games that require a deposit must be wagered 35 times. A bonus that requires a deposit must be wagered 35 times. Terms and conditions apply
96.52% 4.1/5 UK only. Min £10 deposit. Win up to 500 Free Spins from Mega Wheel on 1st deposit. 24-hour expiry. Max bet £2.50, max spins win £8 per 10 spins, max Bonus win £150, selected games & 65x wagering on winnings. No Neteller/Skrill
96.00% 4/5 New customers only. Min deposit £20 max bonus amount £500. First deposit: 100% up to £200. Second deposit: 50% up to £300. Wagering 40x for each bonus. Game weighting applies. Cashback: 5% cashback on first and all other deposits during week 1, 10% cashback on all additional deposits taking place in week 2 only. Bonus betting limits: slots - $/£/€5 all other games – 10% of bonus amount.T&Cs apply

Like the universe itself, the selection of space and alien themed slot titles is ever expanding. Over the course of this breakdown, we aim to exhibit our top picks for the best free space slot titles and delve deeper into which generous bonuses, free spins and jackpots exist for you to benefit from when exploring the rich world of space-themed slots.

Best Space Slots

As a useful starting point with this genre, we will now share our top picks below for the 10 best space slots games. It is worth mentioning that these titles are fully mobile compatible and can be played through many trustworthy online casino apps. As the list below illustrates, the best online space slots have strong payout rates or Return to Player (RTP) percentages. These are the likelihood of earning your money back through wins over time.

  1. Starmania – RTP: 97.87% (NextGen)
  2. Supernova – RTP: 97.07% (Microgaming)
  3. Battlestar Galactica – RTP: 97.-% (Microgaming)
  4. Stardust – RTP: 97.0% (Microgaming)
  5. Cosmic Fortune – RTP: 96.9% (NetEnt)
  6. Cosmic Eclipse – RTP: 96.8% (NetEnt)
  7. Space Wars – RTP: 96.8% (NetEnt)
  8. Alien Robots – RTP: 96.6% (NetEnt)
  9. Apollo Rising – RTP: 96.5% (IGT)
  10. Big Bang – RTP: 96.0% (NetEnt)

Next, we would like to take the opportunity to showcase and delve deeper into our five top space slots picks; Starmania, Supernova, Battlestar Galactica, Stardust and Cosmic Fortune. We believe that these titles in particular were able to out-pace the rest of the competition thanks to their high payout rates and generous terms. Let’s begin with Starmania.

1. Starmania

Developed by NextGen and on the scene since 2015, the Starmania slot is a title with a classic outer space aesthetic. One of the reasons why this title has such a devoted following is largely due to its remarkably high RTP of 97.87% and how it offers a max payout of 1,000x your total stake. Each of the five reels come with vibrant coloured stars alongside ambient background music certain to soothe players. Offering a wide array of stake levels, Starmania’s Free Games Features offer free spins, otherwise deposits can be made anywhere from 10 cents right up to $20, a move that’s sure to cater to all appetites.

2. Supernova

Powered by Quickspin, Supernova is an enticing space slot that weaves orbs, black holes and worm holes together in a manner that affords players the opportunity to bet well despite their bankroll limits. Design wise, this slot offers two sets of wild on-screen reels. On the left hand side is a standard 3 reel while the right hand side features two sets of multiplier reels which allow players to multiply winnings by 2x, 3x, 5x and even 10x should they win on the first reel. Naturally smaller wins should be anticipated with a 97.07% RTP however the double multiplier reels mean players could win big payouts.

3. Battlestar Galactica

Based upon the beloved 2000s TV programme, this space slot machine features a huge selection of bonuses for fans and newcomers alike. Players can bet up to $15 per spin across five slot reels set against the backdrop of a starry night sky. One of the most unique features about this title are its three distinct game modes to try out, which are activated at random while wheels spin. This slot can be played in normal, run or fight mode with each offering a distinct experience. Free spin rounds are available too and activated by landing three or more scatter symbols. However, the total number awarded depends on which game mode you play in.

4. Stardust

Described by its creators at Microgaming as a space slot with ‘a retro arcade feel’, Stardust is a notable fast-paced space slots machine that features five reels, celestial graphics and ambient music to compliment the gaming experience. The aim of the slot is to land as many galaxy symbols as possible in order to collect gems which top up the free spin meter that’s presented at the right hand side of the reels. When this meter fills up, the player receives a payout alongside 10-13 free spins.

With a striking 97% RTP and likelihood of free spins, Stardust players are bound to experience consistent wins with this title.

5. Cosmic Fortune

Part of the NetEnt ‘Fortune’ slot series, Cosmic Fortune is an alien invasion themed progressive slot that should definitely appeal to a wide demographic of players. This slot presents five reels which invite players to try out this space-age slot for free or play for real money. Alongside a 96.9% RTP, this slot offers five jackpots and free spins. Two of the jackpots (Rapid and Mini) can pay out a grand sum of $100 and $500. This particular game also offers Free-fall features (free spins) as well as an exhilarating Avalanche feature which only increases your chances of bigger wins after every spin.

Who Makes the Best Space Slots

As you may have noticed from our previous top 10 list, both Net Entertainment and Microgaming dominate the space slot industry as pioneers within the realm of space-themed slots. With so many remarkable games set in the astral plane that it’s difficult to decide who stands alone as the best maker of space slots. Another notable mention is IGT who also contributed to our top pick list (Apollo Rising).

Software Developer Jackpot RTP Slot Game
NetEnt Yes 96.9% Cosmic Fortune
Microgaming No 97.07% Supernova
NextGen Yes 97.87% Starmania

Both NetEnt and Micrograming are distinguished across the market for the manner in which they offer diverse ways to win money alongside considerable bonuses and free spins. They each boast a popular variety of exclusive deals across vast selections of video and progressive slots titles. These slots cover many themes and aspects of pop culture including various legends, myths, fables, movies and TV shows. In fact, you would be incredibly hard-pressed to find a theme that Microgaming or NetEnt software games has not yet tackled.

Final Thoughts: Play Space Slots for Real Money

With space being a topic of endless human fascination, it’s unsurprising that slot software developers are constantly inspired to create new space slots machines that pay tribute to the otherworldly. With space and alien themed title selections ranging well into the hundreds, and with new additions being released every year, it’s incredibly likely that the future will offer many new worlds for players to explore and win real money.

If you’d like a personal recommendation for the best theme casino where you can make some real money, simply see our top choice in the table below. Finally, if you’d like to come back down to earth, you can also find other fun slot themes over at our feature on the most popular slots themes.

Top Space Slots Casino:

Grand Ivy Casino
Up to £1500 + 100 Bonus Spins
*T&Cs apply 21+

Frequently Asked Questions

While we try our best to promote clarity and transparency on this site, there’s always the chance that you may find yourself short on time or filled with questions or queries that remain unanswered. Should this be the case, we warmly invite you to check out the most frequently asked questions by our readers below.

What are the best space slots?

It is difficult to pinpoint one standalone title as the best space slots title, due to the increasing volume of high-quality space-themed games consistently being put out by game developers, as each is quite different from one another. Naturally, the best space slots should offer high payouts, free spins and rewarding game modes. However, our previous list of our picks for the top space slots games provides a good starting point to begin with. By demoing some of these top picks for free, we hope you can make an informed decision that will ensure you have the best gaming experience possible.

Which slots have the best payouts?

As we’ve previously mentioned together with our inclusive list of space slot titles with the best payouts, players should check the percentage of Return To Player figures (RTP) before choosing a title to play. As all of the best slot titles will proudly exhibit strong payout rates in percentages (RTP). These percentages establish how likely you are to get back a certain amount of money from what you’ve put into the slot machine. RTPs are a great indicator of a slots fairness and play a role in regulating high-quality games. These ensure game developers keep them RTPs in order to compete with the leading market competitors.

Is there a trick to winning slots?

Unfortunately, there is no definitive way to win in slots. Games are automated to be as random as possible meaning there are no guarantees. However, you can play smartly and considerately when trying to win at online slots. We also recommend demoing each title first to get a better grasp of how these slots games perform. Games come with 3-7 reels, meaning games with a smaller amount of reels will be more straightforward to play. While RTP rate is important to consider, it still depends on game volatility. Volatility simply means the unpredictability of winning a certain game. Therefore choosing slot titles with low volatility, high payout odds, and free spins offer the best chance for a player to make a profit.

Are there any space slots jackpot slots?

Yes, not every top space slots game pick we’ve featured in this articles offers jackpots to players, there are several which do. For instance, Cosmic Fortune which is powered by NetEnt is the first of its kind within the company and is packed with five special jackpot slots, three of which are progressive. If you’d like to learn more about other jackpots slots and the best theme slots on the market, we’ve got you covered.

How do I get free spins?

Fortunately, free spins can be acquired in a number of ways. After verifying your account with an online casino, players are often rewarded with no deposit free spins that should appear instantaneously within their wallet. Free spins are also occasionally awarded whenever a new slot is released by a developer. With most of the space slot machines that we’ve covered earlier, free spins can be obtained mid-game whenever a certain symbol falls upon a certain reel in the game. Whenever these special symbols land on the necessary reel, they can generate free spins. Combining free spins with reel multipliers could be just the gift you need to send your payout totals soaring.
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