Best sci fi-themed online slots and free sci fi slot demos

SCI FI Online Slots – Ranked List, Free Demos & Best Casinos

If you're looking for the top-rated sci fi-themed slots, you've come to the right place! Our updated CGSCORE ranking highlights the best sci fi slots online, from classic adventures to modern sci fi bonus games. Play free demos to explore the gameplay risk-free and learn the mechanics at your own pace — no deposit needed.

Where to Play SCI FI-Themed Slots for Real Money at Trusted Casinos

Ready to move beyond free demos? Find safe and trusted online casinos offering sci fi slots and claim exclusive bonus deals from our recommended real-money sites. Whether you're chasing big wins, bonus features, or immersive sci fi adventures, these top-tier casinos deliver the ultimate sci fi-slot experience.

 Top SlotsNew SlotsUpcomingHigh RTPBonus BuyMegaways Top Free sci-fi Slots Sort by: Max Win - RTP - Rating - Release Anaki Skywalkers
CGSCORE 61
Popiplay Anaki Skywalkers
Max Win: 5000x
RTP: 96.96%
 Mystery Mission to the Moon
CGSCORE 73
Push Gaming Mystery Mission to the Moon
Max Win: 10000x
RTP: 96.25%
 Space Stacks
CGSCORE 63
Push Gaming Space Stacks
Max Win: 5000x
RTP: 96.23%
 Fortune Rewind
CGSCORE 62
Playn Go Fortune Rewind
Max Win: 8500x
RTP: 96.2%
 Wildman Super Bonanza
CGSCORE 66
Pragmatic Play Wildman Super Bonanza
Max Win: 10000x
RTP: 96.51%
 Machina Reloaded Megaways
CGSCORE 58
Kalamba Games Machina Reloaded Megaways
Max Win: 15000x
RTP: 96.2%
 CritterPop
CGSCORE 67
AvatarUX CritterPop
Max Win: 20000x
RTP: 96.08%
 Cygnus 2
CGSCORE 85
ELK Studios Cygnus 2
Max Win: 50000x
RTP: 94%
 Cosmic Cash
CGSCORE 63
Pragmatic Play Cosmic Cash
Max Win: 2650x
RTP: 96.55%
 Octopus Armada
CGSCORE 53
Blue Guru Games Octopus Armada
Max Win: 3079x
RTP: 95.78%
 Wild Portals Megaways
CGSCORE 76
Big Time Gaming Wild Portals Megaways
Max Win: 29580x
RTP: 96.58%
 Stargate Megaways
CGSCORE 56
Light and Wonder Stargate Megaways
Max Win: 25000x
RTP: 94.09%
 Cyber Wolf
CGSCORE 50
Endorphina Cyber Wolf
Max Win: 5000x
RTP: 96.05%
 Nitropolis 3
CGSCORE 84
ELK Studios Nitropolis 3
Max Win: 50000x
RTP: 95%
 Def Leppard Hysteria
CGSCORE 71
Playn Go Def Leppard Hysteria
Max Win: 10000x
RTP: 96.27%
 Spaceman
CGSCORE 69
Pragmatic Play Spaceman
Max Win: 5000x
RTP: 96.5%
 Pyramyth Reborn
CGSCORE N/A
Coming Soon!
Thunderkick Pyramyth Reborn
Max Win: 10000x
RTP: 96.17%
 Warp Wreckers Power Glyph
CGSCORE 62
Quickspin Warp Wreckers Power Glyph
Max Win: 4726x
RTP: 96.29%
 Space Miners
CGSCORE 77
Relax Gaming Space Miners
Max Win: 50000x
RTP: 96.47%
 Illogicool
CGSCORE 75
ELK Studios Illogicool
Max Win: 10000x
RTP: 95%
 Farm Invaders
CGSCORE 62
PG Soft Farm Invaders
Max Win: 20000x
RTP: 96.68%
 Gigantoonz
CGSCORE 72
Playn Go Gigantoonz
Max Win: 4000x
RTP: 96.25%
 Sizzling Moon
CGSCORE 56
Wazdan Sizzling Moon
Max Win: 2500x
RTP: 96.14%
 Solar Nova
CGSCORE 65
Iron Dog Solar Nova
Max Win: 10000x
RTP: 96%
 << Prev 1 2 3 4 5 6 7 Next >> Back to top Play SCI FI Slots for Real Money Here ⬇
Betsafe Casino Rating 4.8/5 134+ Game Providers

Malta-License (EU)

 1st Deposit Bonus
100% up to €100 + 150 Free Spins*
Bonus T&C Apply No bonus code required Min. deposit: €10 Wager requirement: 35X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. Betsson Casino Rating 4.8/5 134+ Game Providers

Malta-License (EU)

 1st Deposit Bonus
100% up to €100 + 600 Free Spins*
Bonus T&C Apply No bonus code required Min. deposit: €10 Wager requirement: 35X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. Stake Casino Rating 4.8/5 66+ Game Providers

Curacao-License

 Exclusive Bonus
200% up to $1000*
bonusinfo There is a No Deposit Bonus available: $7 Free Cash
Bonus T&C Apply No bonus code required Min. deposit: $100 / 0.0025 BTC Wager requirement: 40X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. 22Bet Casino Rating 4.8/5 145+ Game Providers

Curacao-License

 1st Deposit Bonus
100% up to $/€300*
Bonus T&C Apply No bonus code required Min. deposit: $/€1 Wager requirement: 50X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. Winz.io Casino Rating 4.7/5 127+ Game Providers

Curacao-License

 1st Deposit Bonus
$/€10000 in Wheel of Winz (Wager Free)*
Bonus T&C Apply Bonus code: WOW Min. deposit: 0.004 BTC / $/€100 Wager requirement: 0X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. Videoslots Casino Rating 4.7/5 137+ Game Providers

Malta-License (EU)

 1st Deposit Bonus
100% up to £/€200 + 11 Welcome Spins*
Bonus T&C Apply No bonus code required Min. deposit: £/€10 Wager requirement: 35X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. Fastpay Casino Rating 4.7/5 63+ Game Providers

Curacao-License

 1st Deposit Bonus
100% up to $/€100 + 100 Free Spins*
bonusinfo There is a No Deposit Bonus available: 20 Free Spins
Bonus T&C Apply No bonus code required Min. deposit: $/€20 Wager requirement: 50X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. Slotrave Casino Rating 4.6/5 134+ Game Providers

Curacao-License

 1st Deposit Bonus
100% up to $/€500 + 100 Free Spins + 1 Bonus Game*
bonusinfo There is a No Deposit Bonus available: 30 Free Spins
Bonus T&C Apply No bonus code required Min. deposit: $/€10 Wager requirement: 40X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. 20Bet Casino Rating 4.6/5 112+ Game Providers

Curacao-License

 1st Deposit Bonus
120% up to $/€120 + 120 Free Spins*
bonusinfo There is a No Deposit Bonus available: 30 Free Spins
Bonus T&C Apply No bonus code required Min. deposit: $/€10 Wager requirement: 40X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. FortuneJack Casino Rating 4.6/5 37+ Game Providers

Curacao-License

 1st Deposit Bonus
110% up to 1.5 BTC + 250 Free Spins*
bonusinfo There is a No Deposit Bonus available: 100 Free Spins (Wager-free)
Bonus T&C Apply No bonus code required Min. deposit: 0.005 BTC Wager requirement: 30X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. 1xBet Rating 4.6/5 148+ Game Providers

Curacao-License

 1st Deposit Bonus
100% up to $/€100*
Bonus T&C Apply No bonus code required Min. deposit: $/€1 Wager requirement: 5X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. Bizzo Casino Rating 4.6/5 165+ Game Providers

Curacao-License

 1st Deposit Bonus
100% up to $/€100 + 100 Free Spins*
bonusinfo There is a No Deposit Bonus available: 25 Free Spins
Bonus T&C Apply No bonus code required Min. deposit: $/€20 Wager requirement: 40X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. National Casino Rating 4.6/5 164+ Game Providers

Curacao-License

 1st Deposit Bonus
100% up to $/€100 + 100 Free Spins*
bonusinfo There is a No Deposit Bonus available: 25 Free Spins
Bonus T&C Apply No bonus code required Min. deposit: €20 Wager requirement: 40X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. GranaWin Casino Rating 4.6/5 118+ Game Providers

Curacao-License

 1st Deposit Bonus
100% up to $/€120 + 120 Free Spins + 1 Bonus Game*
Bonus T&C Apply No bonus code required Min. deposit: $/€20 Wager requirement: 40X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country. Betlabel Rating 4.6/5 142+ Game Providers

Curacao-License

 1st Deposit Bonus
100% up to $/€300 + 30 Free Spins*
Bonus T&C Apply No bonus code required Min. deposit: $/€10 Wager requirement: 35X More bonus info Full Bonus T&C
Get Bonus 18+ | T&C Apply | Play Responsibly | BeGambleAware.org *Bonus may vary depending on country.
TOP CASINOS
MyStake Casino MyStake
Slotoro Casino Slotoro
Slotrave Casino Slotrave
Winz.io Winz.io
Bizzo Bizzo
Fairspin Fairspin
More online casinos