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.

-66% vs Steam RRP

Warhounds

Steam RRP€40.71

BuyCheapKeys key€13.99

-86% vs Steam RRP

Jack Move

Steam RRP€19.99

BuyCheapKeys key€2.81

-50% vs Steam RRP

Daikatana

Steam RRP€5.99

BuyCheapKeys key€2.99

-61% vs Steam RRP

MarZ: Tactical Base Defense

Steam RRP€19.99

BuyCheapKeys key€7.71

-88% vs Steam RRP

Starsand

Steam RRP€16.79

BuyCheapKeys key€2.09

-90% vs Steam RRP

Carrier Command: Gaea Mission

Steam RRP€24.99

BuyCheapKeys key€2.38

Not on Steam

Interplanetary

Steam—

BuyCheapKeys key€3.15

-4% vs Steam RRP

STARSEEKER: Astroneer Expeditions

Steam RRP€29.99

BuyCheapKeys key€28.75

-69% vs Steam RRP

Axiom Verge 2

Steam RRP€16.79

BuyCheapKeys key€5.14

-42% vs Steam RRP

Cloudbuilt

Steam RRP€18.98

BuyCheapKeys key€11.03

-59% vs Steam RRP

Metal Wolf Chaos XD

Steam RRP€24.50

BuyCheapKeys key€10.14

-78% vs Steam RRP

Maize

Steam RRP€9.75

BuyCheapKeys key€2.19

-44% vs Steam RRP

LIVE A LIVE

Steam RRP€49.99

BuyCheapKeys key€27.79

StarCrawlers

Steam RRP€19.99

BuyCheapKeys key€38.99

-85% vs Steam RRP

Ultros

Steam RRP€24.99

BuyCheapKeys key€3.70

-79% vs Steam RRP

The Signal From Tölva

Steam RRP€19.99

BuyCheapKeys key€4.11

-79% vs Steam RRP

Akimbot

Steam RRP€19.99

BuyCheapKeys key€4.19

-89% vs Steam RRP

Aquatico

Steam RRP€24.99

BuyCheapKeys key€2.67

-83% vs Steam RRP

Black The Fall

Steam RRP€14.99

BuyCheapKeys key€2.49

Super Motherload

Steam RRP€14.79

BuyCheapKeys key€18.96

-22% vs Steam RRP

RIPOUT

Steam RRP€19.99

BuyCheapKeys key€15.59

-72% vs Steam RRP

Darwinia

Steam RRP€11.79

BuyCheapKeys key€3.35

-74% vs Steam RRP

Wolfstride

Steam RRP€12.99

BuyCheapKeys key€3.34

-8% vs Steam RRP

IRON REBELLION

Steam RRP€24.50

BuyCheapKeys key€22.63

-30% vs Steam RRP

Serious Sam HD: The Second Encounter

Steam RRP€19.99

BuyCheapKeys key€14.00

-76% vs Steam RRP

They Always Run

Steam RRP€9.75

BuyCheapKeys key€2.38

-55% vs Steam RRP

Heaven Dust 2

Steam RRP€12.49

BuyCheapKeys key€5.63

-88% vs Steam RRP

Still There

Steam RRP€14.79

BuyCheapKeys key€1.82

-84% vs Steam RRP

Terror of Hemasaurus

Steam RRP€14.79

BuyCheapKeys key€2.30

-58% vs Steam RRP

The Eyes of Ara

Steam RRP€15.49

BuyCheapKeys key€6.51

-64% vs Steam RRP

X-COM: Terror From the Deep

Steam RRP€4.99

BuyCheapKeys key€1.82

-69% vs Steam RRP

Bionic Bay

Steam RRP€19.99

BuyCheapKeys key€6.18

-85% vs Steam RRP

Starpoint Gemini 3

Steam RRP€29.99

BuyCheapKeys key€4.63

-72% vs Steam RRP

Earth 2160

Steam RRP€9.75

BuyCheapKeys key€2.75

-80% vs Steam RRP

Moros Protocol

Steam RRP€24.50

BuyCheapKeys key€5.00

-93% vs Steam RRP

Synthwave Burnout

Steam RRP€29.99

BuyCheapKeys key€2.23

-86% vs Steam RRP

Ctrl Alt Ego

Steam RRP€18.99

BuyCheapKeys key€2.67

-11% vs Steam RRP

The Solitaire Conspiracy

Steam RRP€9.99

BuyCheapKeys key€8.93

-33% vs Steam RRP

Space Hulk: Ascension (Classic)

Steam RRP€19.99

BuyCheapKeys key€13.30

-82% vs Steam RRP

Outcast - Second Contact

Steam RRP€14.99

BuyCheapKeys key€2.76

-41% vs Steam

Xeodrifter

Steam€9.75

BuyCheapKeys key€5.79

-45% vs Steam RRP

Front Mission Evolved

Steam RRP€9.99

BuyCheapKeys key€5.46

-90% vs Steam RRP

Stars in Shadow

Steam RRP€24.50

BuyCheapKeys key€2.46

-74% vs Steam RRP

Nemesis: Lockdown

Steam RRP€24.50

BuyCheapKeys key€6.36

-74% vs Steam RRP

Zeno Clash 2

Steam RRP€14.99

BuyCheapKeys key€3.85

Not on Steam

Q.U.B.E.

Steam—

BuyCheapKeys key€4.45

Ground Zero

Steam RRP€17.99

BuyCheapKeys key€30.39

-73% vs Steam RRP

GIGA WRECKER

Steam RRP€19.99

BuyCheapKeys key€5.33