Cheapest Sci-fi games on Steam

Steam games tagged “Sci-fi” that you can buy as a key at BuyCheapKeys, compared with their Steam price.

Ascension: Deckbuilding Game

Steam RRP€9.75

BuyCheapKeys key€11.94

-65% vs Steam RRP

Shadow Empire

Steam RRP€38.99

BuyCheapKeys key€13.80

-86% vs Steam RRP

Seven: Enhanced Edition

Steam RRP€27.49

BuyCheapKeys key€3.98

-10% vs Steam RRP

OPUS: Rocket of Whispers

Steam RRP€14.79

BuyCheapKeys key€13.31

-87% vs Steam RRP

From Space

Steam RRP€14.99

BuyCheapKeys key€1.94

-54% vs Steam RRP

NecroVision

Steam RRP€4.99

BuyCheapKeys key€2.29

-91% vs Steam RRP

Distant Worlds: Universe

Steam RRP€28.99

BuyCheapKeys key€2.66

-71% vs Steam RRP

Interstellar Rift

Steam RRP€19.50

BuyCheapKeys key€5.72

Not on Steam

Warhammer 40,000: Space Wolf

Steam—

BuyCheapKeys key€3.63

-48% vs Steam RRP

The Dream Machine: Chapter 1 & 2

Steam RRP€3.99

BuyCheapKeys key€2.08

-19% vs Steam RRP

Starship Troopers: Ultimate Bug War!

Steam RRP€24.99

BuyCheapKeys key€20.23

-64% vs Steam RRP

Out There: Ω Edition

Steam RRP€14.99

BuyCheapKeys key€5.43

-85% vs Steam RRP

Pesterquest

Steam RRP€11.79

BuyCheapKeys key€1.80

Vertigo Remastered

Steam€14.99

BuyCheapKeys key€24.58

-74% vs Steam RRP

The Long Journey Home

Steam RRP€9.99

BuyCheapKeys key€2.60

-11% vs Steam RRP

Boson X

Steam RRP€5.19

BuyCheapKeys key€4.64

-89% vs Steam RRP

Beyond a Steel Sky

Steam RRP€29.99

BuyCheapKeys key€3.29

-17% vs Steam RRP

Cyber Shadow

Steam RRP€19.99

BuyCheapKeys key€16.61

-68% vs Steam RRP

Mega Man Battle Network Legacy Collection Vol. 1

Steam RRP€39.99

BuyCheapKeys key€12.73

-83% vs Steam RRP

Moonbreaker

Steam RRP€29.99

BuyCheapKeys key€4.95

Not on Steam

Final DOOM

Steam—

BuyCheapKeys key€9.02

-82% vs Steam RRP

Shortest Trip to Earth

Steam RRP€25.13

BuyCheapKeys key€4.40

Space Beast Terror Fright

Steam RRP€14.99

BuyCheapKeys key€16.30

-52% vs Steam RRP

Gemini Rue

Steam RRP€7.99

BuyCheapKeys key€3.85

-42% vs Steam

StarDrive

Steam€27.99

BuyCheapKeys key€16.25

-34% vs Steam RRP

SCP: Fragmented Minds

Steam RRP€9.49

BuyCheapKeys key€6.25

-81% vs Steam RRP

Trigon: Space Story

Steam RRP€19.99

BuyCheapKeys key€3.85

Jets'n'Guns Gold

Steam RRP€7.79

BuyCheapKeys key€8.76

-46% vs Steam RRP

Astrox Imperium

Steam RRP€12.49

BuyCheapKeys key€6.77

-57% vs Steam RRP

Shadowgrounds

Steam RRP€4.99

BuyCheapKeys key€2.14

-41% vs Steam RRP

Tower Tactics: Liberation

Steam RRP€12.99

BuyCheapKeys key€7.69

-79% vs Steam RRP

Hyperbolica

Steam RRP€12.79

BuyCheapKeys key€2.66

-78% vs Steam RRP

Harold Halibut

Steam RRP€34.99

BuyCheapKeys key€7.74

-59% vs Steam RRP

Buggos

Steam RRP€17.25

BuyCheapKeys key€7.11

-79% vs Steam RRP

McPixel 3

Steam RRP€9.75

BuyCheapKeys key€2.08

-61% vs Steam RRP

NanoApostle

Steam RRP€19.99

BuyCheapKeys key€7.80

Particle Fleet: Emergence

Steam RRP€14.79

BuyCheapKeys key€14.85

-78% vs Steam RRP

Golf Club Nostalgia

Steam RRP€9.75

BuyCheapKeys key€2.19

-74% vs Steam RRP

Machinika: Museum

Steam RRP€7.99

BuyCheapKeys key€2.11

-88% vs Steam RRP

Vox Machinae

Steam RRP€24.99

BuyCheapKeys key€2.88

Vangers

Steam€6.99

BuyCheapKeys key€7.77

-50% vs Steam RRP

Rez Infinite

Steam RRP€24.99

BuyCheapKeys key€12.60

The Dig®

Steam RRP€5.89

BuyCheapKeys key€6.50

-83% vs Steam RRP

Warhammer 40,000: Sanctus Reach (Classic)

Steam RRP€20.49

BuyCheapKeys key€3.50

-78% vs Steam RRP

ADR1FT

Steam RRP€19.99

BuyCheapKeys key€4.31

-66% vs Steam RRP

Sword of the Stars: The Pit

Steam RRP€9.75

BuyCheapKeys key€3.31

-32% vs Steam RRP

METALLIC CHILD

Steam RRP€24.99

BuyCheapKeys key€17.11

-90% vs Steam RRP

AI War 2

Steam RRP€19.50

BuyCheapKeys key€1.95