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Sci Fi Themed Slots — Free Demos

Browse 171 free Sci Fi themed slot demos. Instant play in your browser with full RTP, volatility, and bonus feature details.

171

Slots

95.7%

Avg RTP

80,000x

Max Win

Most games from NetEnt (9 slots)

Sushicade slotGamatron

Sushicade

98.41% RTP
Low
Max Win~500xest.
Free SpinsMultiplierCascading
Madame Mystique Megaways slotPragmatic Play

Madame Mystique Megaways

98% RTP
Med
Max Win100x
Free SpinsMegaways
Neon Strike slotCapecod Gaming

Neon Strike

98% RTP
Med
Max Win~2,500xest.
Free SpinsJackpotBonus Round
Alien Hunter slotPlaytechNo Demo

Alien Hunter

97.69% RTP
Med
Max Win~1,000xest.
Free SpinsBonus Round
Cyber Heist slotPragmatic Play

Cyber Heist

97.34% RTP
High
Max Win500x
Free SpinsMultiplierCascading
Neon Roulette slotFUGASO

Neon Roulette

97.3% RTP
Med
Max Win~1,000xest.
Alien Fruits 2 slotBGAMING

Alien Fruits 2

97.17% RTP
Med
Max Win~2,000xest.
Free SpinsBonus Buy
Pockets of Riches slotGamatron

Pockets of Riches

97.16% RTP
Med-Hi
Max Win~3,000xest.
Sticky WildWild
Alien Robots slotNetEntNo Demo

Alien Robots

97% RTP
Low
Max Win~500xest.
Free SpinsExpanding WildSticky Wild+2
Cyberpunk slotUrgent Games

Cyberpunk

97% RTP
High
Max Win~5,000xest.
Free Spins
Future Fruits slotPixmove Games

Future Fruits

97% RTP
High
Max Win15,000x
Invasion slotRTGNo Demo

Invasion

97% RTP
Med
Max Win~1,000xest.
Space War slotFunta Gaming

Space War

97% RTP
High
Max Win~5,000xest.
UPlinko Fashion TV slotGaming Corps

UPlinko Fashion TV

97% RTP
Med
Max Win~1,000xest.
Neon Staxx slotNetEnt

Neon Staxx

96.9% RTP
Med-Hi
Max Win~3,000xest.
Free SpinsStacked WildWild+1
Fun of the Fair slotGamesysNo Demo

Fun of the Fair

96.71% RTP
Med
Max Win250x
Bonus RoundWildScatter
Elephant War slotMerkurNo Demo

Elephant War

96.64% RTP
Med
Max Win100x
Fail Alien slotMerkur

Fail Alien

96.64% RTP
Med
Max Win~1,000xest.
Free Spins
Fallen Alien slotMerkur

Fallen Alien

96.64% RTP
Med
Max Win2,000x
Free SpinsBonus Round
Aliens & Mushrooms slotNemesis Game Studio

Aliens & Mushrooms

96.6% RTP
Low
Max Win~500xest.
Magic Portals slotNetEntNo Demo

Magic Portals

96.6% RTP
Med
Max Win~2,000xest.
Free SpinsExpanding WildWild+1
Secret of Troy Jackpot Wars slotSG Digital

Secret of Troy Jackpot Wars

96.6% RTP
Med
Max Win56x
Free SpinsSticky WildWild
Machina Megaways slotKalamba Games

Machina Megaways

96.56% RTP
High
Max Win26,000x
Free SpinsBonus Round
Thunderspin Jackpots slotNextGen Gaming

Thunderspin Jackpots

96.56% RTP
Low
Max Win250x
Jackpot
Big Bot Crew slotQuickSpin

Big Bot Crew

96.51% RTP
Med
Max Win5,000x
Free SpinsBonus Round
Monopoly Electric Wins slotWMS

Monopoly Electric Wins

96.51% RTP
Low
Max Win1,000x
Free SpinsBonus Round
7 Elements slot4ThePlayer

7 Elements

96.5% RTP
High
Max Win25,000x
Free Spins
Alien Invaders slotPragmatic Play

Alien Invaders

96.5% RTP
High
Max Win5,000x
Free SpinsBonus BuyScatter+3
Cosmic Jewels slotHigh 5 Games

Cosmic Jewels

96.5% RTP
Med
Max Win25x
Free Spins
Cyber Egypt slotJust Slots

Cyber Egypt

96.5% RTP
Med
Max Win5,000x
Free SpinsBonus BuyWild+1
Multiplier Odyssey slotRelax Gaming

Multiplier Odyssey

96.5% RTP
High
Max Win50,000x
Multiplier
Vegas Kingmaker 100 slotGameArt

Vegas Kingmaker 100

96.5% RTP
High
Max Win5,000x
WildScatterGamble
Wild Worlds slotNetEnt

Wild Worlds

96.47% RTP
High
Max Win~5,000xest.
Free SpinsBonus Round
The Neon Samurai Kawa slotArcadem

The Neon Samurai Kawa

96.46% RTP
High
Max Win~5,000xest.
Free SpinsSticky WildWild
Zodiac Wheel slotEGT

Zodiac Wheel

96.45% RTP
Med
Max Win~2,500xest.
Free SpinsJackpotBonus Round
Sweet Robots slotBooming GamesNo Demo

Sweet Robots

96.4% RTP
Med
Max Win~1,000xest.
Free SpinsBonus Round
Cyberslot Megaclusters slotBig Time Gaming

Cyberslot Megaclusters

96.36% RTP
High
Max Win~5,000xest.
Free SpinsWild
DJ Cat slotPush Gaming

DJ Cat

96.32% RTP
High
Max Win20,480x
Free Spins
Invaders Megaways slotWMS

Invaders Megaways

96.3% RTP
High
Max Win~5,000xest.
Free SpinsBonus Round
Lady Fortuna slotOneTouch

Lady Fortuna

96.3% RTP
Med
Max Win1,000x
Free Spins
Neon Rush slotYggdrasil Gaming

Neon Rush

96.3% RTP
High
Max Win~10,000xest.
Free SpinsJackpotBonus Round
El Chili Caliente slotTriple Cherry

El Chili Caliente

96.29% RTP
High
Max Win~5,000xest.
Free Spins
Land of Zenith slotPush Gaming

Land of Zenith

96.29% RTP
High
Max Win21,000x
Free Spins
Quick Cash Fruits slotNetGameNo Demo

Quick Cash Fruits

96.29% RTP
Med
Max Win~1,000xest.
Warp Wreckers Power Glyph slotQuickSpinNo Demo

Warp Wreckers Power Glyph

96.29% RTP
High
Max Win4,707x
Free SpinsCascading
Crystal Robot slotBackseat Gaming

Crystal Robot

96.28% RTP
High
Max Win~7,500xest.
Free SpinsBonus Buy
Roboslots slot1x2 GamingNo Demo

Roboslots

96.25% RTP
Med
Max Win~1,000xest.
Free SpinsBonus Round
Gronk's Gems slotHacksaw Gaming

Gronk's Gems

96.24% RTP
High
Max Win15,000x
Free SpinsMultiplier
Gronk's Gems slotHacksaw Gaming

Gronk's Gems

96.24% RTP
High
Max Win15,000x
Night Lights slotEnrich Gaming

Night Lights

96.23% RTP
Med
Max Win1,000x
Free Spins
Gargantoonz slotPlay'n Go

Gargantoonz

96.2% RTP
High
Max Win7,000x
Free SpinsWild
Invading Vegas: Las Christmas slotPlay'n Go

Invading Vegas: Las Christmas

96.2% RTP
Med
Max Win~1,000xest.
Free Spins
Agent 51 slotKalamba Games

Agent 51

96.17% RTP
High
Max Win5,500x
Little Green Men Nova Wilds slotIGT

Little Green Men Nova Wilds

96.17% RTP
Med-Hi
Max Win12,000x
Free SpinsWild
Zap Attack slotThunderkick

Zap Attack

96.17% RTP
High
Max Win~5,000xest.
Free Spins
Electric Diva slotMicrogamingNo Demo

Electric Diva

96.15% RTP
Med
Max Win~1,000xest.
Free SpinsBonus Round
Space Wars Megaways™ XXXtreme slotNetEnt

Space Wars Megaways™ XXXtreme

96.14% RTP
High
Max Win~7,500xest.
Free SpinsBonus Buy
Cyber Vault slotFour Leaf Gaming

Cyber Vault

96.13% RTP
Med
Max Win22,760x
Free Spins
Crystal Ball slotBally Wulff

Crystal Ball

96.12% RTP
Med
Max Win~1,000xest.
Free SpinsBonus Round
Crystal Ball Double Rush slotBally Wulff

Crystal Ball Double Rush

96.12% RTP
High
Max Win~5,000xest.
Free SpinsWild
Jellyens X slotPopiplay

Jellyens X

96.11% RTP
High
Max Win10,200x
Free SpinsBonus BuyScatter+3
Visitors slotElk Studios

Visitors

96.1% RTP
Med-Hi
Max Win10,000x
Free SpinsBonus Round
Anime Mecha Megaways slotPragmatic Play

Anime Mecha Megaways

96.09% RTP
High
Max Win40,000x
Free SpinsMegaways
Build the Bank slotCrazy Tooth Studio

Build the Bank

96.09% RTP
Med
Max Win4,000x
Neon Capital slotEvoplay Entertainment

Neon Capital

96.09% RTP
Med
Max Win~1,000xest.
Free Spins
Space Donkey slotNolimit City

Space Donkey

96.07% RTP
High
Max Win14,649x
Free Spins
Astronomical Magic slotKonami

Astronomical Magic

96.05% RTP
Med
Max Win~1,000xest.
Free Spins
Cyber Wolf Dice slotEndorphina

Cyber Wolf Dice

96.05% RTP
Med
Max Win~1,000xest.
Free Spins
Hot 4 Cash slotNolimit City

Hot 4 Cash

96.05% RTP
Med-Hi
Max Win~3,000xest.
Free SpinsSticky WildWild+1
Space Wars 2 Powerpoints slotNetEnt

Space Wars 2 Powerpoints

96.05% RTP
High
Max Win250x
Free Spins
Shogun of Time slotJust for the Win

Shogun of Time

96.02% RTP
Med
Max Win2,717x
Free SpinsBonus Round
Brute Force Alien Onslaught slotNolimit City

Brute Force Alien Onslaught

96.01% RTP
Med
Max Win80,000x
Bonus BuyWildScatter+1
Light Racers slotThe Games CompanyNo Demo

Light Racers

96.01% RTP
Med
Max Win~1,000xest.
Free SpinsBonus Round
Monster Meltdown slotEndemol Games

Monster Meltdown

96.01% RTP
Low
Max Win~500xest.
Respin
Wild-O-Tron 3000 slotNetEnt

Wild-O-Tron 3000

96.01% RTP
Med
Max Win500x
Bonus RoundWild
5 Monsters slotMax Win Gaming

5 Monsters

96% RTP
High
Max Win55,555x
Free Spins
9 Planet Shockers slotBoldplay

9 Planet Shockers

96% RTP
Med
Max Win~1,000xest.
Free Spins
Alien Tour slotKA Gaming

Alien Tour

96% RTP
High
Max Win~5,000xest.
Free Spins
Aliens slotNetEntNo Demo

Aliens

96% RTP
Med
Max Win~1,000xest.
Bonus Round
Ally Aliens slotBeGamesNo Demo

Ally Aliens

96% RTP
Med
Max Win200x
Free Spins
Amigo Multifruits slotAmigo Gaming

Amigo Multifruits

96% RTP
High
Max Win~5,000xest.
Free Spins
Area 51 Lock 2 Spin slotKA Gaming

Area 51 Lock 2 Spin

96% RTP
Med
Max Win~1,000xest.
Free SpinsWildScatter
Asgardian Fire slotNeon Valley Studios

Asgardian Fire

96% RTP
Med
Max Win~1,000xest.
Free Spins
Blue Invaders slotPoggiPlay

Blue Invaders

96% RTP
Med
Max Win~1,000xest.
Free Spins
Cluster Slide slotElk Studios

Cluster Slide

96% RTP
Med-Hi
Max Win10,000x
Expanding WildWildBonus Round
Cyber Cash slotAinsworth

Cyber Cash

96% RTP
Med
Max Win150x
Cyber Heist 1000 slotPragmatic Play

Cyber Heist 1000

96% RTP
High
Max Win10,000x
Free SpinsBonus Buy
Cyberpunk City slotQora Games

Cyberpunk City

96% RTP
High
Max Win40,000x
Free SpinsExpanding WildWild+1
Cyberpunk Wars slotWoohoo Games

Cyberpunk Wars

96% RTP
Med
Max Win40,000x
E.T. Lost Socks slotEvoplay EntertainmentNo Demo

E.T. Lost Socks

96% RTP
Med
Max Win~2,000xest.
Free SpinsExpanding WildWild
Fu Dao Le slotBally

Fu Dao Le

96% RTP
Med
Max Win~3,000xest.
Free SpinsExpanding WildStacked Wild+3
Giganimals Gigablox slotYggdrasil GamingNo Demo

Giganimals Gigablox

96% RTP
High
Max Win~5,000xest.
Free SpinsGigablox
Hen Heist: Hold & Win slotiSoftBet

Hen Heist: Hold & Win

96% RTP
High
Max Win~5,000xest.
Free SpinsHold And Win
Machina Reloaded Megaways slotKalamba GamesNo Demo

Machina Reloaded Megaways

96% RTP
Med
Max Win~1,000xest.
Free SpinsBonus Round
Neon Burst slotMobileFX

Neon Burst

96% RTP
Med
Max Win200x
Free Spins
Neon Villains Doublemax slotYggdrasil Gaming

Neon Villains Doublemax

96% RTP
High
Max Win~5,000xest.
Free Spins
Neon Wildfire slotRogue

Neon Wildfire

96% RTP
Med
Max Win~1,000xest.
Wild
Planet of the Roos slotRTG

Planet of the Roos

96% RTP
Med
Max Win75,000x
Free SpinsJackpot
Pulsar slotRTG

Pulsar

96% RTP
Med
Max Win~2,000xest.
Cascading
Red Lights slotTom Horn Gaming

Red Lights

96% RTP
Med
Max Win50x
Free SpinsExpanding WildSticky Wild+2
Retro Electronic slotKA Gaming

Retro Electronic

96% RTP
Med-Hi
Max Win~3,000xest.
Free Spins
Space Attacks Dream Drop slotRelax Gaming

Space Attacks Dream Drop

96% RTP
Med-Hi
Max Win~3,000xest.
Free SpinsBonus Buy
Spin-Vention slotHigh 5 Games

Spin-Vention

96% RTP
High
Max Win10,174x
Free Spins
Starlite Fruits slotNeon Valley Studios

Starlite Fruits

96% RTP
Med-Hi
Max Win~5,000xest.
Jackpot
The Rise of AI slotEndorphina

The Rise of AI

96% RTP
High
Max Win25,000x
Free SpinsBonus Round
Vegas Diamonds slotElk Studios

Vegas Diamonds

96% RTP
High
Max Win3,000x
Bonus Wheel
Cash Up slotLeander Games

Cash Up

95.99% RTP
Med
Max Win1,000x
Free SpinsBonus Round
Drone Wars slotGenesis GamingNo Demo

Drone Wars

95.99% RTP
Med
Max Win~1,000xest.
Free SpinsBonus Round
Gallo Gold Bruno's Megaways slotNeon Valley Studios

Gallo Gold Bruno's Megaways

95.98% RTP
High
Max Win18,164x
Free SpinsJackpot
Max Damage slotMicrogamingNo Demo

Max Damage

95.98% RTP
Med
Max Win~1,000xest.
Bonus Round
Vault Squad slotIGT

Vault Squad

95.98% RTP
High
Max Win10,000x
Free SpinsBonus BuyExpanding Wild+6
What on Earth slotMicrogamingNo Demo

What on Earth

95.98% RTP
Low
Max Win200x
Bonus Round
Harveys slotMicrogaming

Harveys

95.97% RTP
Low
Max Win~500xest.
Free SpinsBonus Round
Evil Emperor slotMerkurNo Demo

Evil Emperor

95.94% RTP
Med-Hi
Max Win~3,000xest.
Expanding WildWild
Queen of Mars slotMerkur

Queen of Mars

95.94% RTP
Med
Max Win200x
Free SpinsBonus Round
The Rise of Tzar Empire Awakens slotWild BoarsNo Demo

The Rise of Tzar Empire Awakens

95.92% RTP
Med-Hi
Max Win~3,000xest.
Free Spins
Hologram Wilds slotPlaytech

Hologram Wilds

95.9% RTP
Med-Hi
Max Win~3,000xest.
Free SpinsStacked WildWild+1
El Patron slotStakeLogic

El Patron

95.86% RTP
Med
Max Win~2,000xest.
Free SpinsExpanding WildWild
Cybergirls slotBarbara Bang

Cybergirls

95.85% RTP
High
Max Win6,906x
Neon Pyramid slotInspired Gaming

Neon Pyramid

95.85% RTP
Med
Max Win10,000x
Free SpinsBonus Round
Starscape slotMicrogamingNo Demo

Starscape

95.85% RTP
Med
Max Win~2,500xest.
Bonus RoundJackpot
Zaida's Fortune slotRed Tiger Gaming

Zaida's Fortune

95.74% RTP
High
Max Win~5,000xest.
Bonus RoundWildMultiplier
Jin Ji Bao Xi Endless Treasure Jackpot Wars slotShuffle Master

Jin Ji Bao Xi Endless Treasure Jackpot Wars

95.73% RTP
Med
Max Win~1,000xest.
Free SpinsBonus Round
What the Fox! Megaways slotRed Tiger Gaming

What the Fox! Megaways

95.71% RTP
High
Max Win~5,000xest.
Free SpinsBonus Round
Galacnica slotSpinmatic

Galacnica

95.7% RTP
Med
Max Win~2,000xest.
Free SpinsExpanding WildWild+1
Sizzling Neon Jackpot slotSpinmatic

Sizzling Neon Jackpot

95.7% RTP
Med-Hi
Max Win~5,000xest.
Free SpinsJackpot
Cyber Attack slotRed Tiger Gaming

Cyber Attack

95.68% RTP
High
Max Win10,584x
Free Spins
Doctor Winstein Buy Bonus slotCasino Technology

Doctor Winstein Buy Bonus

95.58% RTP
High
Max Win~7,500xest.
Free SpinsBonus BuyWild+1
Cosmic Monstronauts slotMGA

Cosmic Monstronauts

95.57% RTP
Med
Max Win1,140x
Free SpinsJackpot
Monstronautas Cosmicos slotMGA

Monstronautas Cosmicos

95.57% RTP
Med
Max Win1,140x
Free SpinsBonus BuyJackpot
Cosmic Convoy slotHigh 5 Games

Cosmic Convoy

95.5% RTP
High
Max Win50,000x
Free SpinsBonus Round
Time Machine slotReflex Gaming

Time Machine

95.5% RTP
Med
Max Win9,068x
Free SpinsWildBonus Round
Truckers vs Aliens slotIndigo Magic

Truckers vs Aliens

95.5% RTP
Med
Max Win5,600x
Bonus BuyWildScatter+2
777 Caliente Megaways slotMGA

777 Caliente Megaways

95.47% RTP
Med-Hi
Max Win1,280x
Free SpinsMegaways
Halloween Planet slotMGA

Halloween Planet

95.43% RTP
Med
Max Win2,373x
Free SpinsMultiplierCascading
Nuts & Bolts slotGamesysNo Demo

Nuts & Bolts

95.41% RTP
Med
Max Win~1,000xest.
Neon Stars slotGamewayNo Demo

Neon Stars

95.36% RTP
Med
Max Win~1,000xest.
Free SpinsBonus Round
Fireworks Fever slotGamatronNo Demo

Fireworks Fever

95.32% RTP
Med
Max Win~1,000xest.
Free SpinsBonus Round
Neon Blast slotNemesis Game Studio

Neon Blast

95.3% RTP
High
Max Win~5,000xest.
Free SpinsWildBonus Wheel
Space Botz slotGenesis GamingNo Demo

Space Botz

95.24% RTP
Med
Max Win~1,000xest.
Free SpinsBonus Round
Buffalo Legend slotNazionale Elettronica

Buffalo Legend

95.23% RTP
Med
Max Win~3,000xest.
Free SpinsBonus BuyJackpot
Alien Fusion slotAllBetNo Demo

Alien Fusion

95.17% RTP
Med
Max Win~2,000xest.
Sticky WildWildMultiplier+1
It Came from the Moon slotRealistic GamesNo Demo

It Came from the Moon

95.12% RTP
Low
Max Win~500xest.
Alien Turtles vs. Humans slotTom Horn Gaming

Alien Turtles vs. Humans

95.04% RTP
Med
Max Win18,476x
Free SpinsBonus BuyWild+5
Alien Wins slotRTG

Alien Wins

95% RTP
High
Max Win50,000x
Cyber Wildz slotNovomatic

Cyber Wildz

95% RTP
Med
Max Win~1,000xest.
Free SpinsWild
Illogicool slotElk Studios

Illogicool

95% RTP
High
Max Win10,000x
Free SpinsWildMultiplier
Roboland slotApollo Games

Roboland

95% RTP
Med
Max Win~2,500xest.
WildJackpot
Smashing Sevens Win Ways slotNovomatic

Smashing Sevens Win Ways

95% RTP
Med-Hi
Max Win~3,000xest.
Free SpinsBonus Round
Star Trek: The Next Generation slotSkywindNo Demo

Star Trek: The Next Generation

95% RTP
Med
Max Win200x
Free SpinsStacked WildWild+1
Star Trek slotIGTNo Demo

Star Trek

94.99% RTP
Low
Max Win~500xest.
Free SpinsBonus Round
Mayan Moons slotNovomatic

Mayan Moons

94.98% RTP
Med
Max Win~1,000xest.
Free SpinsBonus Round
Two Mayans slotNovomaticNo Demo

Two Mayans

94.98% RTP
Med
Max Win~1,000xest.
Free SpinsBonus Round
Flip Flap slotSkillonNetNo Demo

Flip Flap

94.9% RTP
Med
Max Win~1,000xest.
Bonus Round
Transformers Battle for Cybertron slotIGTNo Demo

Transformers Battle for Cybertron

94.55% RTP
Med
Max Win~1,000xest.
Free SpinsBonus Round
Classic Neon slotNsoft

Classic Neon

94.45% RTP
Med
Max Win~2,500xest.
Free SpinsJackpot
Blox Blitz slotGamesysNo Demo

Blox Blitz

94.26% RTP
Med
Max Win~1,000xest.
Reactoonz 100 slotPlay'n Go

Reactoonz 100

94.2% RTP
High
Max Win10,000x
WildMultiplierCluster Pays+1
Gypsy Luck slotCayetano Gaming

Gypsy Luck

94.13% RTP
Med
Max Win100x
Free SpinsBonus Round
Xterminate slotThunderkick

Xterminate

94.12% RTP
High
Max Win~7,500xest.
Free SpinsWildMultiplier+1
Outta Space Adventure slotAmayaNo Demo

Outta Space Adventure

94% RTP
Med
Max Win~1,000xest.
Free SpinsBonus Round
The War of the Worlds slotAsh GamingNo Demo

The War of the Worlds

93.54% RTP
Med
Max Win~1,000xest.
Fortune Teller slotNetEntNo Demo

Fortune Teller

93.3% RTP
Low
Max Win~500xest.
Free SpinsBonus Round
Code 243-0 slotSpinmatic

Code 243-0

92.3% RTP
Med
Max Win~1,000xest.
Free SpinsStacked WildWild+1
Mr. Roboto's Gacha Machine slotArcadem

Mr. Roboto's Gacha Machine

92.16% RTP
Med
Max Win~1,000xest.
Free Spins
Pyramid of the Sun slotAtronicNo Demo

Pyramid of the Sun

92.1% RTP
Low
Max Win~500xest.
Free SpinsBonus Round
Starlite Fruits Mega Moolah slotNeon Valley Studios

Starlite Fruits Mega Moolah

92.08% RTP
Med
Max Win~2,500xest.
Jackpot
777 Space slotSpinomenal

777 Space

92.03% RTP
High
Max Win1,500x
Free Spins
Astronaut slotRed Tiger Gaming

Astronaut

92% RTP
High
Max Win48,000x
Free SpinsJackpot
Fruit of Legend slotPlaybetterNo Demo

Fruit of Legend

90% RTP
Med
Max Win~1,000xest.
Free SpinsBonus Round
Jolanda de Rienzo Il Pianeta delle Gemme slotMGA

Jolanda de Rienzo Il Pianeta delle Gemme

80.02% RTP
Med-Hi
Max Win260x

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