Sci-Fi Slots: The Best Science Fiction-Themed Slot Games

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Last update: March 19, 2025

Sci-fi slots take you to galaxies far, far away—full of robots, aliens, and out-of-this-world adventures. They offer an exciting escape into the unknown—and we’ve already tested the best science fiction-themed slots for you.

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Logo of Energoonz - slot tested by KryptoCasinos.com
Energoonz
by Play’n Go
Rating: 80 %
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Reviewed by Isabella Brown
Energoonz
Play’n Go

Sci-fi slots feature distinctive symbols that represent the genre's core elements, setting them apart from traditional slot games. Instead of fruits or playing cards, these slots use futuristic imagery to create an authentic sci-fi experience on the reels.

  1. Spaceships

    From flying saucers to massive star destroyers, these vehicles symbolize humanity's desire to explore beyond our world.

  2. Aliens

    These otherworldly beings appear in various forms and colors, typically serving as high-value symbols. Alien characters may also have special powers that affect gameplay.

  3. Space Explorers

    Brave astronauts and space travelers in protective suits represent the human element in cosmic adventures.

  4. Cosmic Objects

    Planets, stars, asteroids, and other celestial bodies create the cosmic backdrop essential to the sci-fi atmosphere.

  5. Robots

    Mechanical beings with artificial intelligence stand for humanity's complex relationship with technology and automation.

  6. Tech Gadgets

    Holographic displays, futuristic computers, and communication devices showcase the advanced technology of sci-fi worlds.

  7. Futuristic Weapons

    Energy blasters, laser swords, and other advanced armaments represent the action elements of sci-fi narratives.

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Our Top Science Fiction-Themed Slots

The universe of sci-fi slots is vast and continually expanding, with new titles pushing the boundaries of what's possible in online slot games. These slots combine spectacular visuals with innovative features to create truly out-of-this-world gaming experiences.

1. Energoonz by Play'n GO

Play'n GO’s sci-fi-themed slots began with Energoonz in 2017, kicking off a series of games set in a quirky alien world. This was followed by Reactoonz, Dr. Toonz, Gargantoonz, and Gigantoonz, with each release building on the previous one. The series evolves with new twists and expands on the themes. It maintains a unique connection between the games while offering fresh experiences for players.

Special Features of Energoonz:

  • Cascade Mechanic: Winning symbols disappear from the reels, allowing remaining symbols to cascade down and potentially create multiple wins from a single spin. Clearing the entire 5×5 grid rewards players with up to 1,000x their bet.
  • BONUS Free Spins: Triggered by clearing the grid to reveal the word “BONUS,” this feature awards 10 free spins with 10 unique Goonz creatures that pay out when landing between 5 and 10 matching symbols.
  • Multiplier Boosts: Each cascading win builds the multiplier, with winnings potentially multiplying up to 10x.
Energoonz
Rating: 80 / 100
Best casino to play: BC.Game
Theme: Sci-Fi, Space
Software provider: Play’n Go
RTP: 96.69 %
Min bet $0.20
Max bet $40.00
Max win 1,000x
Slot reviewed by: Isabella Brown Isabella Brown

2. Battlestar Galactica by Microgaming

Battlestar Galactica is a slot machine based on the popular television series. The game offers various modes that enhance the gameplay experience. These modes provide different ways to succeed as you navigate the narrative-driven adventure.

Special Features of Battlestar Galactica:

  • Normal Mode: Includes the Ion Storm special feature that can randomly transform all five reels into wild symbols, creating massive winning potential without requiring specific trigger symbols.
  • Run Mode: Enables winning combinations to form both from left to right and right to left, significantly increasing the chances of landing winning combinations.
  • Fight Mode: Depicts the battle between Cylons and Colonials, featuring random wild symbols that can split to create additional winning combinations, along with scatter symbols that activate free spins.
Battlestar Galactica
Rating: 96 / 100
Best casino to play: CoinKings
Theme: Movies & TV Shows, Sci-Fi, Space
Software provider: Microgaming
RTP: 96,60 %
Min bet 0,30
Max bet 30
Max win x7.500
Slot reviewed by: Michael Schmitz Michael Schmitz

3. Multiplier Odyssey by Relax Gaming

Multiplier Odyssey launches players into a thrilling space adventure, combining futuristic visuals and immersive sound design with fast-paced gameplay. The slot stands out with its innovative features, including engaging free spin rounds and powerful multipliers.

Special Features of Multiplier Odyssey:

  • Coin Collector: Coins appearing on reels 1-4 represent multipliers that are collected and paid out when a Collector symbol appears on the 5th reel.
  • Free Spins: Activated by 3-5 bonus symbols, this feature introduces a life indicator system where players continue spinning until they run out of lives (starting with 7-9 lives depending on the number of triggering symbols). The feature includes 10 different multipliers that are applied sequentially with wins. If you succeed in converting all 10 before your lives run out, you’ll unlock the coveted super multiplier—a cosmic power-up that takes your winnings to astronomical heights.
  • Bonus Buy: After completing 70 spins, players automatically receive three scatter symbols on their next spin, guaranteeing entry into the free spin mode without having to wait for random triggers.
Multiplier Odyssey
Rating: 92 / 100
Best casino to play: CoinKings
Theme: Sci-Fi, Space
Software provider: Relax Gaming
RTP: 96,50 %
Min bet 0,10
Max bet 20
Max win x50.000
Slot reviewed by: Michael Schmitz Michael Schmitz

Special Features and Characteristics of Sci-Fi Slots

Sci-fi slots stand out from other genres with their forward-thinking gameplay mechanics and special features inspired by futuristic technology. These innovative elements make every spin feel like a journey through the cosmos.

Here are some of the most common features found in sci-fi slots:

  • Expanding Wilds: Wild symbols that expand to cover entire reels, often designed as energy beams, laser fields, or alien technology that spreads across the playing area.
  • Cluster Pays: Instead of traditional paylines, many futuristic slots award wins for clusters of matching symbols. This modern approach fits perfectly with the innovative spirit of science fiction.
  • Cascading Reels: Symbols disappear after creating winning combinations, allowing new symbols to fall into place and potentially create additional wins. This cascade feature mimics matter transformation technologies from science fiction.
  • Character-Based Features: Many sci-fi slots incorporate character progression systems where recurring aliens or robots provide increasing benefits. These characters often unlock special abilities or bonus rounds as players continue their space journey.
  • Progressive Jackpots: Sci-fi slots often feature tiered jackpot systems, delivering immense win potential that appeals to high-stakes adventurers.

Best Game Developers of Science Fiction-Themed Slots

The sci-fi slot universe is populated by talented studios that push technological boundaries to create games as innovative as their themes. These game developers combine cutting-edge graphics with unique mechanics that capture the essence of futuristic exploration and discovery. Here are our top 3 sci-fi software providers:

Play’n GO

Play’n Go Signet
Play’n Go
Company name Play’n Go
Headquarters Växjö/Sweden, Storgatan 82 A
Year of foundation 1997
Founder Johan Törnqvist
CEO Johan Törnqvist
Customer service [email protected], +46(0)470 78 88 51
Employees 600+
Turnover 63.1 million US dollars
Website https://www.playngo.com/

With quirky alien creatures and cosmic energy, Play’n GO’s Reactoonz series has become a flagship of sci-fi slot success. The developer crafts imaginative universes full of character, often weaving recurring figures and story arcs across titles. These high-energy slots are built to perform seamlessly on mobile. Players never miss a moment—no matter where they are.

Microgaming

Microgaming Signet
Microgaming
Company name Apricot Investments Limited
Headquarters 62 Circular Road, Douglas, Isle of Man
Year of foundation 1994
CEO John Coleman
Customer service [email protected]
Employees 200+
Website https://www.apricot.co.im/

As one of the industry's oldest developers, Microgaming brings decades of experience to sci-fi slot creation. It combines classic gameplay elements with forward-thinking innovations. This Isle of Man-based giant has consistently delivered sci-fi titles that balance accessibility with depth, making them popular across various international casino platforms.

Relax Gaming

Relax Gaming Signet (white)
Relax Gaming
Company name Relax Gaming Ltd
Headquarters Paceville Avenue, Block 6, Floor 4, St Julian’s, STJ3109, Malta
Year of foundation 2010
Founder Patrik Österåker, Jani Tekoniemi
CEO Tommi Maijala
Customer service https://relax-gaming.com/contact/
Website https://relax-gaming.com/

Relax Gaming has established itself as a visionary in the sci-fi slot space, creating games with remarkable depth and visual flair. This innovative studio consistently delivers sci-fi experiences that balance complex mechanics with accessible gameplay, appealing to both casual players and serious slot enthusiasts. Multiplier Odyssey exemplifies Relax Gaming's approach to sci-fi slots—a game where futuristic visuals serve the gameplay rather than merely decorating it.

Software Providers Number of casinos
Pragmatic Play 80
NetEnt 61
Play’n Go 58
Evoplay Entertainment 55
Spinomenal 55
Booming Games 54
Microgaming 54
Wazdan 53
Push Gaming 52
Thunderkick 50
BGaming 50
Playson 49
Betsoft Gaming 49
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Quickspin 48
Habanero 47
Nolimit City 46
Evolution Gaming 44
Belatra 43
Big Time Gaming 43
Red Tiger Gaming 43
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Endorphina 41
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Amatic 32
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MrSlotty 29
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Swintt 27
3 Oaks Gaming 26
Booongo 26
KA Gaming 25
Felix Gaming 24
Nucleus Gaming 22
Novomatic 21
Leap Gaming 20
Gaming Corps 18
Slotmill 17
iSoftBet 17
Ruby Play 16
Red Rake Gaming 15
BF Games 15
EGT 14
Fazi Casino 12
Eurasian Gaming 10
JFTW – Just For The Win 10
NetGaming 6
Pariplay 5
StakeLogic 4
Gaming Realms 3
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Tips and Game Strategies for Sci-Fi Slots

Even though sci-fi slots are powered by luck, a little know-how goes a long way. Learning how those wild features and bonus rounds work can help you stretch your session and enjoy more of what these space-age games have to offer.

  • Master the Special Features: Take time to understand each game's unique mechanics, as sci-fi slots often have complex bonus systems. Knowing exactly how cascading reels, expanding wilds, or multi-level bonuses work helps you make better decisions during gameplay.
  • Play Free Versions First: Most casinos offer demo versions of sci-fi slots that allow you to learn the game without risking real money. Use these to familiarize yourself with the game's mechanics before making real wagers.
  • Understand Volatility Levels: Sci-fi slots range from low-volatility slots with frequent small wins to high-volatility slots with rarer but larger payouts.
  • Look for Return-to-Player Percentages: Choose sci-fi slots with higher RTP percentages to maximize potential returns over time. Games with RTPs above 96% generally offer better long-term value.
  • Target Bonus Buy Options: Some sci-fi slots offer bonus buy slots features that let you purchase direct access to bonus rounds. While expensive, these can be worth considering when seeking specific features.

Bonuses for Science Fiction-Themed Slots

The cosmic journey through sci-fi slots becomes even more rewarding when you take advantage of the various bonus offers available at online casinos. These promotions can significantly extend your playtime, increase your chances of winning, and enhance the overall gaming experience.

Welcome Offer

These initial offers match a percentage of your first deposit, sometimes across multiple deposits. Welcome packages for sci-fi enthusiasts often include both bonus funds and free spins on popular space-themed slots.

No Deposit Bonuses

These rare but valuable bonuses provide a small amount of funds or free spins without requiring any deposit. They're perfect for trying new sci-fi slots with absolutely no financial risk.

Reload Bonuses

Regular players benefit from reload bonuses that add extra funds when replenishing their accounts. These bonuses often appear weekly or monthly, providing consistent value for dedicated sci-fi slot players.

Cashback Offers

These promotions return a percentage of losses over a specific period, providing a safety net for your cosmic adventures. Cashback typically ranges from 5-25% depending on the casino and your player status.

Loyalty Programs

Progressive reward systems offer increasing benefits as you continue playing slot games. VIP perks often include personalized bonuses, faster withdrawals, and dedicated account managers for serious players.

Bonus Terms & Conditions

Sci-fi slot bonuses may look like something from another galaxy, but they come with very down-to-earth rules. Before you accept that tempting offer, it’s worth knowing what’s really involved.

You’ll often face wagering requirements, meaning you’ll need to wager the bonus multiple times—typically 25x to 50x—before you can cash out.

Then there’s game contribution: sci-fi slots usually count 100% toward meeting these wagering rules, while table games often contribute much less—or not at all.

Most casinos also enforce maximum bet limits, often capped at $5 or $10 per spin. Go beyond that, and your bonus—and winnings—might be voided.

Promotions also come with expiration dates. Some bonuses last 24 hours, others up to 30 days—but when they expire, so do your bonus funds and progress.

And even if you win big, there may be payout caps, restricting how much of those winnings you can actually keep. Also, due to licensing or legal compliance, reputable casinos may restrict certain bonuses based on your country or region.

Conclusion on Sci-Fi Slots

Sci-fi slots represent the cutting edge of online casino innovation, combining stellar visuals with mechanics that truly push the boundaries of what's possible. These games have evolved beyond simple spinning reels to offer complex bonus rounds and narrative experiences that rival mainstream entertainment.

The rise of fast payout casinos and cryptocurrency options has been a major advantage for sci-fi slot fans, who tend to value speed, innovation, and cutting-edge tech. Many crypto casinos now spotlight sci-fi slots as a core part of their offerings, recognizing the strong connection between futuristic payment methods and space-themed adventures.

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  • Slots contribute 100%. Table games and live dealer games do NOT contribute.
How did we rate this casino

Vave Casino offers fast payouts, all major currencies, a good bonus, and a wide range of games. Despite this, it is often overlooked, but we highly recommend it.

Author & Responsibility: Abby Richards
Last update by Gregor Ziegler on February 10, 2025
Costa Rica Online Casinos
Costa Rica
Licence
150% up to 10,000 USDT + 50 Free Spins
Welcome bonus
KC150
Cryptocurrencies (8)
  • Bitcoin Logo
  • Dogecoin Logo
  • Ethereum Logo
  • Litecoin Casino
  • xrp logo
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Login Methods (4)
  • email icon
  • google logo
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Empire.io review
Bonus Information Empire.io
Wagering requirements 40x bonus
40x free spins winnings
Minimum deposit 30 USDT
Maximum bet 5 USDT per round
Bonus validity 10 days to claim
  • The offer is limited to one claim per player.
  • To use the deposit bonus offer, switch your wallet (balance display) to USDT.
  • The free spins are given on Gates of Olympus.
How did we rate this casino

We absolutely recommend Empire.io since it has one of the best crypto teams we know behind it. On top of that, it offers an extensive selection of slots and live games. The bonus is also exceptional with good conditions.

Author & Responsibility: Gregor Ziegler
Last update by Isabella Brown on March 18, 2025
Anjuan Gaming
Anjouan
Licence
100% Bonus + 10% Wager Free Weekly Cashback
Welcome bonus
Cryptocurrencies (11)
  • Bitcoin Logo
  • Dogecoin Logo
  • Ethereum Logo
  • Litecoin Casino
  • xrp logo
  • usdt logo
  • toncoin logo
  • tron-logo
Login Methods (1)
  • email icon
Cryptorino Casino review
Bonus Information Cryptorino Casino
Wagering requirements 40x deposit + bonus
Minimum deposit None
Maximum bet 180 μBTC
Bonus validity 7 days
  • Different games contribute differently to the wagering requirement.
  • You can activate your 10% weekly cashback, when you hit 1500 XP.
  • 10% Cashback is paid on Mondays at 13:00 UTC.
  • The Cashback is paid back wager-free.
How did we rate this casino

The creators of Betpanda.io have recently launched their second product, Cryptorino.io. Although some might argue that it bears a striking resemblance to another well-known crypto casino, we believe that it's not necessarily a negative thing. The website boasts an attractive design, and an extensive selection of games and accepts multiple cryptocurrencies.

Author & Responsibility: Abby Richards
Last update by Gregor Ziegler on February 10, 2025
Costa Rica Online Casinos
Costa Rica
Licence

Overview of other slot categories

Theme Number of slots
Animals 32
Fruits 24
Retro 22
Egypt 20
Wildlife 17
Asia 16
Space 15
Adventure 15
Gemstones 13
Books 12
Action 12
Fairytale 11
Fishing 10
Movies & TV Shows 9
Nature 9
Gods 9
Food & Drinking 8
Winter 8
Candy 8
Comic 8
Holidays 8
Mexico 7
Money & Wealth 7
Greek Mythology 7
Africa 6
Lucky 7 6
Love & Valentine's Day 6
Sea 5
Irish 5
Farmlife 4
Vikings 4
Summer 4
Music 4
Treasure Hunt 4
Pirates 4
Sports 4
Middle Ages 3
Anime 3
Magic 3
Vampires 2
Our slot themes

FAQs: Answers to Common Questions About Sci-Fi Slots

Can I play sci-fi slots on mobile devices?

Yes, virtually all modern sci-fi slots are developed with mobile compatibility in mind. Most use HTML5 technology that works seamlessly across desktop, tablet, and smartphone devices.

Can I play sci-fi slots in free/demo mode before wagering real money?

Yes, most online casinos allow players to try sci-fi slots in demo mode without registration or deposits. This practice mode helps you understand the game's unique features and mechanics before committing real funds.

What should I look for in the paytable of a sci-fi slot?

Review the symbol values to understand the win potential from regular combinations, but pay special attention to the special feature explanations. Sci-fi slots often have complex feature interactions that aren't immediately obvious during gameplay.

How can I determine if a sci-fi slot uses the Megaways mechanic?

Megaways slots will clearly indicate this feature in their title or game description. This mechanic, licensed from Big Time Gaming, uses a random reel modifier system where each reel can display a different number of symbols on each spin, creating varying ways to win.

Isabella Brown

Created by

Online Gambling, Greece and my dog Gringo are my three favorite things in my life. Before working for Kryptocasinos.com I was leading the content team of an iGaming Online magazine where I was focused on researching casinos, their licenses and the connection between the members of the industry.

Last update: March 19, 2025

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We are independent, transparent and funded by revenue we generate when you sign up at a casino through us.

Our goal is to help you make better decisions when choosing a casino by offering different information, providing filters and comparison tables, and publishing objective content. Thus, we give you the opportunity to research for free, compare casinos and make your decision based on that.

We cannot guarantee that a casino that is very good for us will fit your type of player and your circumstances.

Why trust us?

We work according to transparent editorial guidelines and disclose our testing methods as well as funding. This article may contain links to our partners, but this does not influence our objective view in any way.

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