The 3rd party operators featured on this page are featured on a non-commercial basis with no commission arrangements in place. 21+. Gambling Problem? Call 1-800-GAMBLER.

HomeGamesSci-fi-Themed Games Free Play

Sci-fi-Themed Games Free Play

Sci-fi-Themed Games. ✅ Free casino games and slots. ✅ No download, no registration required. ✅ Play for free in demo mode.
1Advanced filterSlots58Roulette0Blackjack0Video poker0Bingo0Baccarat0Live games0Craps and dice0Keno0Scratch cards0Other games0Crash games0
58 games found
Sort
Zombie School Megaways
Play for Free
Loading preview...
Zombie School Megaways by Pragmatic Play
Cyber Egypt
Play for Free
Loading preview...
Cyber Egypt by Just Slots
Neon West
Play for Free
Loading preview...
Neon West by Yggdrasil Gaming
Lab of Madness It's A-Wild!
Play for Free
Loading preview...
Lab of Madness It's A-Wild! by Play'n GO
Zombie Siege
Play for Free
Loading preview...
Zombie Siege by Ka Gaming
Reactoonz 100
Play for Free
Loading preview...
Reactoonz 100 by Play'n GO
Edge of the Stars
Play for Free
Loading preview...
Edge of the Stars by Ka Gaming
3 Wild Aliens
Play for Free
Loading preview...
3 Wild Aliens by Iron Dog Studio
Zombie The Apocalypse
Play for Free
Loading preview...
Zombie The Apocalypse by Playzia
Hacker Crash Jackpot
Play for Free
Loading preview...
Hacker Crash Jackpot by 18Peaches
Renegade Revengers
Play for Free
Loading preview...
Renegade Revengers by SpinOn
Turbo Duck
Play for Free
Loading preview...
Turbo Duck by Stakelogic
Cosmic Catch
Play for Free
Loading preview...
Cosmic Catch by Pragmatic Play
Spin 4 Dead 2: Zombietown
Play for Free
Loading preview...
Spin 4 Dead 2: Zombietown by Gamebeat
5 Fruit Invaders
Play for Free
Loading preview...
5 Fruit Invaders by Amigo Gaming
Flagman Fruits
Play for Free
Loading preview...
Flagman Fruits by BGaming
High 5 Heroes
Play for Free
Loading preview...
High 5 Heroes by High 5 Games
Tsar Wars
Play for Free
Loading preview...
Tsar Wars by Nolimit City
Pirots 4
Play for Free
Loading preview...
Pirots 4 by ELK Studios
Zillard King Megaways
Play for Free
Loading preview...
Zillard King Megaways by Red Tiger Gaming
Show More Games (+20)
Author: Juraj Torok Last updated: 01 Dec 2025
58 games found based on your search. Showing 1 - 20
Filter
Sci-fi
Clear all filters
Game Type
Slots, Roulette, Blackjack, Video poker, Bingo, Baccarat
Slots 58 Roulette 0 Blackjack 0 Video poker 0 Bingo 0 Baccarat 0
Live games 0
All 0 Live shows 0 Live baccarat 0 Live bingo 0 Live blackjack 0 Live dice games 0 Other live games 0 Live poker 0 Live roulette 0
Craps and dice 0 Keno 0 Scratch cards 0 Other games 0 Crash games 0
Game Provider
Realtime Gaming, NetEnt, Rival, Nolimit City, Betsoft Gaming
Realtime Gaming 0 NetEnt 0 Rival 0 Nolimit City 2 Betsoft Gaming 0 TaDa Gaming 0 Pragmatic Play 4 Playtech 0 Novomatic 0 Apricot (Microgaming) 0 IGT 1 ELK Studios 3 Big Time Gaming 0 Scientific Games 0 Yggdrasil Gaming 1 Tom Horn 1 Quickspin 0 Evoplay 0 Push Gaming 0 Eyecon 0 Evolution Gaming 0 Saucify 0 SA Gaming 0 BGaming 1 GameArt 0 Play'n GO 3 Red Tiger Gaming 1 Endorphina 1 Bally 0 Barcrest 0 WMS 0 Amaya 0 Blueprint Gaming 0 Wazdan 0 PariPlay 0 Habanero 0 Lightning Box 0 Playson 0 Nextgen Gaming 0 iSoftBet 0 Merkur Gaming 1 Nektan 0 Amatic 0 Red Rake Gaming 0 Thunderkick 0 Leander Games 0 Spinomenal 1 Rabcat 0 Ezugi 0 Igrosoft 0 1X2 Network 0 Booming Games 0 2By2 Gaming 0 Iron Dog Studio 1 Realistic Games 0 High 5 Games 1 Genesis Gaming 0 Ash Gaming 0 NeoGames 0 Belatra Games 0 Booongo (BNG) 0 MrSlotty 0 Relax Gaming 0 edict 0 MultiSlot 0 TOPTrend Gaming 0 Greentube 0 Genii 0 Arrow's Edge 0 Ainsworth 0 Gaming1 0
Game Theme
5-Reels, 6-Reels, Sweets, Ocean and sea, Mythology, Western
10-Reels +5 3-Reels +1,472 4-Reels +231 5-Reels +14,720 6-Reels +1,863 7-Reels +183 8-Reels +43 Adventure +348 Aliens +100 American +254 Animals +1,670 Anime +49 Arabian +140 Arcade +121 Asian +1,409 Astrology +69 Aztecs +284 Cards +289 Cars +124 Christmas +442 Classics and retro +286 Comics +147 Crime +335 Earth Day +16 Easter +73 Egypt +879 Fairy tales +228 Fantasy +90 Farm and Garden +99 Fireworks +28 Fishing +241 Food +345 Fortune +588 Fruits +2,382 Gangsters +95 Gems and diamonds +477 Gods +317 Halloween +121 History +196 Holiday +331 Horror and scary +478 Irish +372 Japan +449 Jungle +214 Knights and Dragons +68 Love and romance +115 Magic +312 Medieval +261 Megaways +386 Mexico +144 Military +128 Mining +157 Money and wealth +533 Movies and tv +181 Music +252 Mythology +768 Nature +822 Ninja +60 Ocean and sea +537 Pachinko +2 Pirates +296 Qatar World Cup 2022 +12 Relax +405 Samurai +46 Sci-fiSpace and galaxy +174 Sport +331 Summer +122 Super heroes +48 Sweets +299 Technology +150 Vampires +8 Vikings +151 Western +305 Winter +305 Winter Olympics +5
Game Features
Filter by available features
Double-up option 8 Configurable lines 0 Jackpot games 10 Bonus Buy 2
Other
Other filters
Featured games 2 Reviewed games 3 Released last month 0
Payout System
Winlines, any way wins, pay anywhere, etc.
Classic winlines 30 Cluster pays 7 Pay anywhere 4 Any ways wins 15 Other 0
Winlines
1
500000000
Reels and Rows
Filter by reels and rows
Number of reels
1
50000
Number of rows
1
50000
Return to Player
Filter by RTP percentage
Return to Player
50%
100%
Clear all Filter (58)
Sci-fi-Themed Games | Play Free Casino Games and Slots
Top pages
Trending pages
Casino Guru
About us
Casino Guru Academy
null

Free professional educational courses for online casino employees aimed at industry best practices, improving player experience, and fair approach to gambling.

Global Self-Exclusion Initiative
null

An initiative we launched with the goal to create a global self-exclusion system, which will allow vulnerable players to block their access to all online gambling opportunities.

Gamtegrity
null

A platform created to showcase all of our efforts aimed at bringing the vision of a safer and more transparent online gambling industry to reality.

Casino Guru Awards
null

An ambitious project whose goal is to celebrate the greatest and the most responsible companies in iGaming and give them the recognition they deserve.

Play responsibly and in moderation.

Casino.guru is an independent source of information about online casinos and online casino games, not controlled by any gambling operator. All our reviews and guides are created honestly, according to the best knowledge and judgement of the members of our independent expert team; however, they are intended for informative purposes only and should not be construed as, nor relied upon as, legal advice. You should always make sure that you meet all regulatory requirements before playing in any selected casino. Copyright ©2025

Casino Guru in other languages
Select language
Trustpilot_flash_alt
What’s your opinion on Casino Guru? Share your feedback
PP Forum Xmas Competition flash 2025
Share your winnings from Pragmatic Play slots — we’re giving away prizes worth $3,000!

Follow us on social media – Daily posts, no deposit bonuses, new slots, and more

Subscribe to our newsletter for no deposit bonuses, free tournaments, new slots, and more.