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.

-71% vs Steam RRP

The Uncertain: Light At The End

Steam RRP€8.19

BuyCheapKeys key€2.40

Lightracer Spark

Steam RRP€12.79

BuyCheapKeys key€13.94

-74% vs Steam RRP

Silent Storm Gold Edition

Steam RRP€9.99

BuyCheapKeys key€2.56

-76% vs Steam RRP

Halcyon 6: Starbase Commander

Steam RRP€14.99

BuyCheapKeys key€3.62

-58% vs Steam RRP

Ex-Zodiac

Steam RRP€10.99

BuyCheapKeys key€4.62

-85% vs Steam RRP

INSOMNIA: The Ark

Steam RRP€29.99

BuyCheapKeys key€4.55

-80% vs Steam RRP

Galactic Civilizations® II: Ultimate Edition

Steam RRP€10.25

BuyCheapKeys key€2.00

-23% vs Steam RRP

Cosmonautica

Steam RRP€9.99

BuyCheapKeys key€7.74

-67% vs Steam RRP

Warhammer 40,000: Armageddon (Classic)

Steam RRP€20.49

BuyCheapKeys key€6.76

Vacation Simulator

Steam€19.50

BuyCheapKeys key€26.62

-87% vs Steam RRP

Rebel Galaxy Outlaw

Steam RRP€29.99

BuyCheapKeys key€3.85

-15% vs Steam RRP

Luna Abyss

Steam RRP€45.88

BuyCheapKeys key€38.99

-71% vs Steam RRP

Battlevoid: Harbinger

Steam RRP€9.99

BuyCheapKeys key€2.88

-78% vs Steam RRP

Hellbound

Steam RRP€14.79

BuyCheapKeys key€3.20

-75% vs Steam RRP

Galactic Glitch

Steam RRP€12.99

BuyCheapKeys key€3.22

-79% vs Steam RRP

Gorky 17

Steam RRP€9.75

BuyCheapKeys key€2.00

Marble Mayhem: Fragile Ball

Steam RRP€1.99

BuyCheapKeys key€3.24

Out of Action

Steam RRP€19.50

BuyCheapKeys key€25.21

-27% vs Steam RRP

Earth Defense Force: Insect Armageddon

Steam RRP€9.99

BuyCheapKeys key€7.31

-86% vs Steam RRP

CRYPTARK

Steam RRP€14.99

BuyCheapKeys key€2.11

-55% vs Steam RRP

Iron Brigade

Steam RRP€14.99

BuyCheapKeys key€6.82

Not on Steam

Disney G-Force

Steam—

BuyCheapKeys key€37.76

Death Come True

Steam RRP€13.29

BuyCheapKeys key€15.23

-87% vs Steam RRP

The Way

Steam RRP€14.99

BuyCheapKeys key€1.91

Quadrilateral Cowboy

Steam RRP€19.99

BuyCheapKeys key€21.48

-36% vs Steam RRP

Starmancer

Steam RRP€14.79

BuyCheapKeys key€9.45

-41% vs Steam RRP

A.I.L.A

Steam RRP€29.99

BuyCheapKeys key€17.75

-74% vs Steam RRP

Microtopia

Steam RRP€19.99

BuyCheapKeys key€5.11

Not on Steam

Bedlam

Steam—

BuyCheapKeys key€5.24

-67% vs Steam RRP

The Red Solstice

Steam RRP€9.99

BuyCheapKeys key€3.31

-72% vs Steam RRP

Q.U.B.E: Director's Cut

Steam RRP€6.99

BuyCheapKeys key€1.94

-80% vs Steam RRP

Close To The Sun

Steam RRP€19.99

BuyCheapKeys key€4.09

-39% vs Steam RRP

Creeper World IXE

Steam RRP€19.50

BuyCheapKeys key€11.99

-64% vs Steam RRP

Heroes of Science and Fiction

Steam RRP€29.99

BuyCheapKeys key€10.91

-87% vs Steam RRP

Battlezone: Combat Commander

Steam RRP€19.99

BuyCheapKeys key€2.66

-33% vs Steam RRP

Tesla vs Lovecraft

Steam RRP€14.79

BuyCheapKeys key€9.91

-55% vs Steam RRP

Alpha Prime

Steam RRP€4.99

BuyCheapKeys key€2.24

-63% vs Steam RRP

X-COM: Apocalypse

Steam RRP€4.99

BuyCheapKeys key€1.86

-54% vs Steam RRP

Little Big Adventure 2

Steam RRP€9.49

BuyCheapKeys key€4.36

P.A.M.E.L.A.®

Steam€22.99

BuyCheapKeys key€31.68

-52% vs Steam RRP

Startopia

Steam RRP€5.69

BuyCheapKeys key€2.74

Frontier Pilot Simulator

Steam€24.99

BuyCheapKeys key€34.20

-77% vs Steam RRP

The Ball

Steam RRP€9.99

BuyCheapKeys key€2.33

-61% vs Steam RRP

GODBREAKERS

Steam RRP€19.99

BuyCheapKeys key€7.77

-32% vs Steam RRP

Mech Havoc

Steam RRP€9.75

BuyCheapKeys key€6.61

-62% vs Steam RRP

Cosmic Star Heroine

Steam RRP€14.99

BuyCheapKeys key€5.69

-74% vs Steam RRP

Hubris

Steam RRP€29.99

BuyCheapKeys key€7.73

-23% vs Steam RRP

Outworld Station

Steam RRP€17.99

BuyCheapKeys key€13.94