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 filterSlots66Roulette0Blackjack0Video poker0Bingo0Baccarat0Live games0Craps and dice0Keno0Scratch cards0Other games0Crash games0
66 games found
Sort
Slotout
Play for Free
Loading preview...
Slotout by Gamebeat
Anime Mecha Megaways
Play for Free
Loading preview...
Anime Mecha Megaways by Pragmatic Play
Brute Force (Nolimit City)
Play for Free
Loading preview...
Brute Force (Nolimit City) by Nolimit City
Zombie Outbreak
Play for Free
Loading preview...
Zombie Outbreak by PGsoft (Pocket Games Soft)
Alien Wins
Play for Free
Loading preview...
Alien Wins by RTG Slots
Stargate Ra’s Trail
Play for Free
Loading preview...
Stargate Ra’s Trail by Light & Wonder
Author: Juraj Torok Last updated: 04 Mar 2026
66 games found based on your search. Showing 61 - 66
Filter
Sci-fi
Clear all filters
Game Type
Slots, Roulette, Blackjack, Video poker, Bingo, Baccarat
Slots 66 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 5 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 WGS Technology (Wager Gaming) 0 Realistic Games 1 High 5 Games 1 Genesis Gaming 0 Ash Gaming 0 NeoGames 0 Belatra Games 0 Booongo (BNG) 0 MrSlotty 0 Relax Gaming 1 Dream Play 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, Mythology, Ocean and sea, Western
10-Reels +5 3-Reels +1,536 4-Reels +243 5-Reels +15,044 6-Reels +1,937 7-Reels +191 8-Reels +45 Adventure +353 Aliens +100 American +268 Animals +1,766 Anime +49 Arabian +145 Arcade +121 Asian +1,447 Astrology +69 Aztecs +288 Cards +289 Cars +124 Christmas +467 Classics and retro +296 Comics +146 Crime +340 Earth Day +16 Easter +74 Egypt +898 Fairy tales +228 Fantasy +104 Farm and Garden +104 Fireworks +32 Fishing +255 Food +361 Fortune +590 Fruits +2,490 Gangsters +95 Gems and diamonds +499 Gods +339 Halloween +143 History +206 Holiday +344 Horror and scary +491 Irish +380 Japan +448 Jungle +221 Knights and Dragons +68 Love and romance +118 Magic +330 Medieval +262 Megaways +389 Mexico +150 Military +139 Mining +162 Money and wealth +556 Movies and tv +183 Music +258 Mythology +798 Nature +833 Ninja +64 Ocean and sea +557 Pachinko +2 Pirates +303 Qatar World Cup 2022 +12 Relax +409 Samurai +48 Sci-fiSpace and galaxy +180 Sport +336 Summer +131 Super heroes +48 Sweets +309 Technology +152 Vampires +13 Vikings +156 Western +314 Winter +336 Winter Olympics +5
Game Features
Filter by available features
Double-up option 8 Configurable lines 0 Jackpot games 11 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 34 Cluster pays 7 Pay anywhere 5 Any ways wins 16 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 (66)
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 ©2026

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 $2,000!

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.