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.

-55% vs Steam RRP

Droid Assault

Steam RRP€9.75

BuyCheapKeys key€4.39

-73% vs Steam RRP

Forsaken Remastered

Steam RRP€16.79

BuyCheapKeys key€4.47

-34% vs Steam RRP

The Last Dream: Developer's Edition

Steam RRP€7.99

BuyCheapKeys key€5.26

-69% vs Steam RRP

Ultra Age

Steam RRP€24.50

BuyCheapKeys key€7.62

-67% vs Steam RRP

AMID EVIL VR

Steam RRP€19.23

BuyCheapKeys key€6.31

Not on Steam

Race To Mars

Steam—

BuyCheapKeys key€20.56

-62% vs Steam

Star Ruler

Steam€6.59

BuyCheapKeys key€2.48

-73% vs Steam RRP

Space Empires IV Deluxe

Steam RRP€9.75

BuyCheapKeys key€2.64

-86% vs Steam

Codex of Victory

Steam€14.99

BuyCheapKeys key€2.05

-60% vs Steam RRP

Distant Star: Revenant Fleet

Steam RRP€9.99

BuyCheapKeys key€3.99

-78% vs Steam RRP

Lifeless Moon

Steam RRP€12.99

BuyCheapKeys key€2.92

-74% vs Steam RRP

Realpolitiks 3: Earth and Beyond

Steam RRP€24.99

BuyCheapKeys key€6.45

-92% vs Steam RRP

Mercury Fallen

Steam RRP€24.50

BuyCheapKeys key€2.05

-76% vs Steam RRP

The Spatials

Steam RRP€9.75

BuyCheapKeys key€2.33

-84% vs Steam RRP

Battle Worlds: Kronos

Steam RRP€19.99

BuyCheapKeys key€3.24

-64% vs Steam RRP

NEO AQUARIUM - The King of Crustaceans -

Steam RRP€8.99

BuyCheapKeys key€3.25

-77% vs Steam RRP

Muv-Luv Alternative Total Eclipse Remastered

Steam RRP€37.99

BuyCheapKeys key€8.55

-93% vs Steam RRP

Dark Future: Blood Red States (Classic)

Steam RRP€24.50

BuyCheapKeys key€1.81

-79% vs Steam RRP

System Crash

Steam RRP€12.49

BuyCheapKeys key€2.60

-31% vs Steam RRP

Knights Within

Steam RRP€17.49

BuyCheapKeys key€11.99

Gratuitous Space Battles 2

Steam RRP€9.75

BuyCheapKeys key€12.76

-75% vs Steam

There Came an Echo

Steam€14.99

BuyCheapKeys key€3.74

-81% vs Steam RRP

JumpJet Rex

Steam RRP€9.99

BuyCheapKeys key€1.93

Some Distant Memory

Steam RRP€9.99

BuyCheapKeys key€11.22

Element Space

Steam€0.99

BuyCheapKeys key€7.36

-76% vs Steam RRP

X Rebirth VR Edition

Steam RRP€39.99

BuyCheapKeys key€9.40

Not on Steam

T.E.C. 3001

Steam—

BuyCheapKeys key€3.33

Distant Bloom

Steam RRP€4.99

BuyCheapKeys key€21.22

-82% vs Steam RRP

My Riding Stables: Life with Horses

Steam RRP€14.99

BuyCheapKeys key€2.76

-61% vs Steam RRP

Solstice Chronicles: MIA

Steam RRP€17.98

BuyCheapKeys key€7.09

-54% vs Steam RRP

Slave Zero

Steam RRP€6.99

BuyCheapKeys key€3.24

-85% vs Steam

Defender's Quest 2: Mists of Ruin

Steam€19.50

BuyCheapKeys key€2.94

Not on Steam

UFO: Extraterrestrials Gold

Steam—

BuyCheapKeys key€4.36

-92% vs Steam RRP

The Pegasus Expedition

Steam RRP€19.99

BuyCheapKeys key€1.69

-65% vs Steam RRP

Asteroid Bounty Hunter

Steam RRP€4.99

BuyCheapKeys key€1.73

-41% vs Steam RRP

Muv-Luv photonflowers*

Steam RRP€23.50

BuyCheapKeys key€13.81

-62% vs Steam RRP

Lost Nova

Steam RRP€14.79

BuyCheapKeys key€5.67

-88% vs Steam RRP

Midnight Protocol

Steam RRP€14.79

BuyCheapKeys key€1.82

-61% vs Steam RRP

The Pit: Infinity

Steam RRP€10.16

BuyCheapKeys key€3.98

-44% vs Steam RRP

Miner Wars 2081

Steam RRP€4.25

BuyCheapKeys key€2.40

-86% vs Steam RRP

Hollow

Steam RRP€19.99

BuyCheapKeys key€2.88

-66% vs Steam RRP

Light Fairytale Episode 1

Steam RRP€9.99

BuyCheapKeys key€3.38

-81% vs Steam RRP

Just Deserts

Steam RRP€9.75

BuyCheapKeys key€1.82

-86% vs Steam RRP

Relicta

Steam RRP€19.99

BuyCheapKeys key€2.71

-69% vs Steam RRP

Rencounter

Steam RRP€5.89

BuyCheapKeys key€1.81

Bullshot

Steam€0.99

BuyCheapKeys key€3.53

INAYAH - Life after Gods

Steam RRP€16.60

BuyCheapKeys key€18.29

-81% vs Steam

Cosmonious High

Steam€19.50

BuyCheapKeys key€3.65