Genre · Free Demos · 2026

Best Sci-Fi Slots UK

93 sci-fi slots reviewed by UK experts — play for free with no registration. Data-verified RTP, volatility and full bonus feature breakdown on every game.

93 slots

93 free demos

95.7% avg RTP

Manna Play

Low

Gasha Shine

Sci-Fi

97.77%×48k

RespinsWildsExpanding Symbols+1

Stakelogic

Low

Monkeys of the Universe

Sci-Fi

97.16%×2505k

RespinsBonus GameScatters+1

Pragmatic Play

High

Power of Thor Megaways

Sci-Fi

96.97%×40000k

RespinsWildsStacked Symbols

NetEnt

Low

Cosmic Fortune

Sci-Fi

96.90%×735k

RespinsBonus GameFree Spins+3

NetEnt

Medium

Warlords

Sci-Fi

96.89%×1000k

RespinsFree SpinsWilds+2

NetEnt

Medium

Space Wars

Sci-Fi

96.75%×200k

RespinsFree SpinsWilds+1

Play'n GO

Medium

Energoonz

Sci-Fi

96.73%×50k

Free SpinsScatters

Wazdan

Medium

Space Spins

Sci-Fi

96.66%×25k

Bonus GameStacked Symbols

Caleta Gaming

Medium

Astro Wild

Sci-Fi

96.63%×400k

RespinsBonus GameFree Spins+3

Pragmatic Play

High

Tic Tac Take

Sci-Fi

96.63%×17600k

Free SpinsWildsScatters

Eyecon

High

Galactic Girls

Sci-Fi

96.62%×200k

WildsScattersStacked Symbols

NetEnt

Medium

Alien Robots

Sci-Fi

96.60%×50k

RespinsFree SpinsWilds+2

Quickspin

Medium

BigBot Crew

Sci-Fi

96.51%×500k

RespinsFree SpinsWilds+2

Wazdan

Medium

Burning Stars

Sci-Fi

96.50%×2500k

Gamble FeatureScatters

Wazdan

Medium

Magic Stars 3

Sci-Fi

96.50%×400k

Gamble FeatureWilds

Wazdan

Medium

Magic Stars 6

Sci-Fi

96.49%×5k

Gamble FeatureFree SpinsWilds+1

True Lab

Medium

StartUp Valley

Sci-Fi

96.48%×3780k

Free SpinsWildsStacked Symbols

Ruby Play

Medium

Reel All-Stars

Sci-Fi

96.47%×100k

Gamble FeatureFree SpinsWilds+2

Wazdan

Medium

Magic Stars 5

Sci-Fi

96.42%×25k

Gamble FeatureScatters

Spearhead

Medium

Meganova

Sci-Fi

96.41%×167k

RespinsWildsExpanding Symbols+1

NetEnt

Medium

Aliens

Sci-Fi

96.40%×570k

Bonus GameFree SpinsWilds

True Lab

Medium

Mining Factory

Sci-Fi

96.40%×1815k

Free SpinsWildsScatters+1

Wazdan

High

Space Gem

Sci-Fi

96.40%×100k

Bonus GameFree SpinsWilds+2

Nolimit City

Medium

Milky Ways

Sci-Fi

96.38%×566k

RespinsFree SpinsWilds+1

SlotMill

High

Tyrant’s Fall

Sci-Fi

96.34%×600k

Free SpinsWildsScatters+1

Yggdrasil Gaming

Low

Cyrus the Virus

Sci-Fi

96.30%×80k

RespinsWildsExpanding Symbols

Thunderkick

Low

Sunset Delight

Sci-Fi

96.30%×41k

WildsExpanding SymbolsStacked Symbols

Genesis

Low

8-bit Intruders

Sci-Fi

96.29%×1215k

Bonus GameWildsScatters

Ruby Play

Medium

Gallantry

Sci-Fi

96.29%×1000k

Free SpinsWildsScatters

Big Time Gaming

High

Star Quest

Sci-Fi

96.22%×100k

Bonus GameFree SpinsWilds+2

Wazdan

Medium

Magic Stars 9

Sci-Fi

96.21%×11k

Gamble FeatureFree SpinsWilds+1

Red Tiger Gaming

Medium

Stars Luck

Sci-Fi

96.16%×80k

RespinsBonus GameWilds+1

Thunderkick

Low

Cosmic Voyager

Sci-Fi

96.14%×500k

Free SpinsWildsScatters+2

Onetouch

Medium

Traveling Treasures India

Sci-Fi

96.13%×2880k

Bonus GameFree SpinsWilds+2

SlotMill

Medium

Wildfire

Sci-Fi

96.11%×79k

WildsStacked Symbols

Betsoft

Medium

Return to Paris

Sci-Fi

96.06%×106k

RespinsFree SpinsWilds

Pragmatic Play

High

Monster Superlanche

Sci-Fi

96.03%×50000k

RespinsFree SpinsScatters+1

Red Tiger Gaming

High

Snow Wild And The 7 Features

Sci-Fi

96.03%×80k

Free SpinsWildsScatters

NetEnt

Low

Elements

Sci-Fi

96.02%×150k

RespinsFree SpinsWilds+1

Promatic

Medium

Freezing Fruits

Sci-Fi

96.02%×1000k

Gamble FeatureBonus GameFree Spins+3

Fugaso

High

Mr. Toxicus

Sci-Fi

96.02%×125k

Gamble FeatureBonus GameFree Spins+2

Gaming1

Medium

CometStar

Sci-Fi

96.01%×100k

Free SpinsWildsScatters+1

NetEnt

High

Big Bang

Sci-Fi

96.00%×134k

Wilds

Yggdrasil Gaming

High

Cazino Cosmos

Sci-Fi

96.00%×236k

RespinsFree SpinsWilds+2

Woohoo

High

Cyberpunk Wars

Sci-Fi

96.00%×8000k

Free SpinsWildsScatters+3

Genesis

High

Galaxy Stars

Sci-Fi

96.00%×50k

Gamble FeatureFree SpinsScatters+1

iSoftBet

Medium

Greta Goes Wild

Sci-Fi

96.00%×80k

Free SpinsWildsScatters

Tom Horn

Medium

Monster Madness

Sci-Fi

96.00%×50k

Gamble FeatureFree SpinsWilds+2

Play'n GO

High

Reactoonz

Sci-Fi

96.00%×91k

RespinsWilds

Endorphina

Medium

The Rise of AI

Sci-Fi

96.00%×5k

Free SpinsWildsScatters+1

1x2 Gaming

Medium

Theseus Rises

Sci-Fi

96.00%×375k

Free SpinsWildsScatters+1

Evoplay Entertainment

Low

Temple of Dead

Sci-Fi

95.99%×750k

Free SpinsWildsScatters+1

Leander Games

Medium

Force of Nature

Sci-Fi

95.90%×200k

Bonus GameFree SpinsWilds+1

Skywind Group

High

Wild Ride

Sci-Fi

95.78%×250k

RespinsFree SpinsWilds+1

Fugaso

Medium

Plagues Of Egypt

Sci-Fi

95.70%×200k

RespinsFree SpinsWilds+2

Thunderspin

High

Space Jail

Sci-Fi

95.50%×100k

Free SpinsWildsScatters+1

Mascot

Medium

Re Kill Ultimate

Sci-Fi

95.40%×225k

RespinsBonus GameWilds+1

Maverick

Medium

Battlemech Earth

Sci-Fi

95.34%×2000k

Free SpinsWildsScatters+1

Thunderspin

High

Necronomicon

Sci-Fi

95.30%×100k

Free SpinsWildsScatters+1

Playson

High

Solar Temple

Sci-Fi

95.22%×100k

RespinsWildsExpanding Symbols+1

Triple Cherry

High

Starfall mission

Sci-Fi

95.22%×65k

RespinsGamble FeatureWilds+2

Maverick

Medium

Battlemech Mars

Sci-Fi

95.18%×5000k

RespinsFree SpinsWilds+3

Genesis

Medium

Super Wilds

Sci-Fi

95.12%×10000k

Free SpinsWilds

Green Jade Games

Medium

Alien K.O.

Sci-Fi

95.08%×25k

Free SpinsWildsScatters+1

Betsoft

Medium

Super Sweets

Sci-Fi

95.03%×1250k

Free SpinsWildsExpanding Symbols

Green Jade Games

Medium

The Christmas Slot

Sci-Fi

95.02%×50k

Bonus GameWildsScatters+1

Iron Dog Studio

Low

Cosmic Crystals

Sci-Fi

95.01%×35k

RespinsWildsExpanding Symbols+1

Maverick

Medium

Astro Gems

Sci-Fi

95.00%×1000k

Free SpinsWildsScatters

Slot Factory

Medium

Cosmic Wilds

Sci-Fi

95.00%×93k

Free SpinsWildsScatters

Mancala Gaming

Medium

Cybercity

Sci-Fi

95.00%×5749k

Bonus GameFree SpinsWilds+1

Mancala Gaming

No data

Fallout Zone

Sci-Fi

95.00%×4500k

Bonus GameWildsScatters

SmartSoft

Medium

Galaxy Clot

Sci-Fi

95.00%×10000k

RespinsGamble FeatureBonus Game+3

Betsoft

Medium

Mad Scientist

Sci-Fi

95.00%×125k

Bonus GameWildsScatters+1

Belatra

Medium

Marswood Party

Sci-Fi

95.00%×1000k

Gamble FeatureWildsScatters+1

Inbet Games

Medium

Martians Attack

Sci-Fi

95.00%×13500k

Gamble FeatureFree SpinsWilds+1

Mancala Gaming

Medium

Mechano Lab

Sci-Fi

95.00%×230k

Bonus GameFree SpinsWilds+2

Mobilots

Medium

Monster Clone

Sci-Fi

95.00%×60k

Stacked Symbols

Red Tiger Gaming

High

Reptizillions Power Reels

Sci-Fi

95.00%×80k

Free SpinsWildsScatters

Superlotto Games

Medium

Robo Chef

Sci-Fi

95.00%×813k

Free SpinsWildsScatters+1

NetEnt

Medium

South Park

Sci-Fi

95.00%×1250k

RespinsFree SpinsWilds+1

Everi

Medium

Star Magic

Sci-Fi

95.00%×1600k

RespinsWildsStacked Symbols

Fazi

Medium

Starlight

Sci-Fi

95.00%×2500k

WildsStacked Symbols

Slotvision

High

Steampunk Queen

Sci-Fi

95.00%×8k

RespinsWildsScatters+2

Apollo Games

Medium

Mad Mechanic Deluxe

Sci-Fi

94.60%×720k

Free SpinsWildsScatters+2

Fils Game

Medium

Asteroid Hunter

Sci-Fi

94.50%×16200k

Bonus GameFree SpinsWilds+2

FunTa Gaming

Medium

Crazy Lab

Sci-Fi

94.50%×500k

RespinsBonus GameScatters+1

MrSlotty

Medium

Mars Dinner

Sci-Fi

94.50%×80k

Gamble FeatureFree SpinsWilds+2

Eurasian Gaming

Medium

Peach Banquet

Sci-Fi

94.30%×1810k

Free SpinsScattersStacked Symbols

Playtech

Medium

Full Moon Fortunes

Sci-Fi

94.02%×1250k

RespinsJackpot

Relax Gaming

High

Galactic Racers

Sci-Fi

94.00%×1000k

Bonus GameFree SpinsWilds+3

Relax Gaming

Medium

Line Busters

Sci-Fi

94.00%×3000k

Free SpinsScattersStacked Symbols+1

Caleta Gaming

Medium

Crazy Lab

Sci-Fi

92.56%×75k

Bonus GameFree SpinsWilds+2

WMG

Medium

Lucky Aliens

Sci-Fi

90.00%×20k

Bonus GameWildsScatters+1

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