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.

-44% vs Steam

Flotilla

Steam€9.99

BuyCheapKeys key€5.64

-72% vs Steam RRP

Read Only Memories: NEURODIVER

Steam RRP€14.79

BuyCheapKeys key€4.14

-87% vs Steam RRP

OUTBUDDIES DX

Steam RRP€17.99

BuyCheapKeys key€2.38

-80% vs Steam RRP

Re-Legion

Steam RRP€9.99

BuyCheapKeys key€2.00

-79% vs Steam

Salvation Prophecy

Steam€18.99

BuyCheapKeys key€3.96

-35% vs Steam RRP

Colony Siege

Steam RRP€19.50

BuyCheapKeys key€12.62

-71% vs Steam RRP

The Abandoned Planet

Steam RRP€14.79

BuyCheapKeys key€4.36

Scathe

Steam€22.99

BuyCheapKeys key€32.96

-71% vs Steam RRP

EARTH DEFENSE FORCE: WORLD BROTHERS 2

Steam RRP€49.99

BuyCheapKeys key€14.45

-82% vs Steam RRP

SPACECOM

Steam RRP€9.99

BuyCheapKeys key€1.82

-78% vs Steam RRP

NeuraGun

Steam RRP€9.99

BuyCheapKeys key€2.19

ArcRunner

Steam RRP€19.99

BuyCheapKeys key€26.38

-13% vs Steam RRP

BossConstructor

Steam RRP€14.99

BuyCheapKeys key€13.01

-90% vs Steam RRP

Dust Fleet

Steam RRP€18.49

BuyCheapKeys key€1.77

-80% vs Steam RRP

Drink More Glurp

Steam RRP€9.75

BuyCheapKeys key€1.93

Z Steel Soldiers

Steam RRP€12.79

BuyCheapKeys key€19.26

-58% vs Steam RRP

Ground Control Anthology

Steam RRP€4.99

BuyCheapKeys key€2.10

-45% vs Steam RRP

Perimeter

Steam RRP€3.99

BuyCheapKeys key€2.19

-33% vs Steam

Bombshell

Steam€34.99

BuyCheapKeys key€23.49

-90% vs Steam RRP

Hell Division

Steam RRP€19.99

BuyCheapKeys key€2.00

-82% vs Steam RRP

Dawn of Andromeda

Steam RRP€28.99

BuyCheapKeys key€5.25

-79% vs Steam RRP

Euphoria: Supreme Mechanics

Steam RRP€9.99

BuyCheapKeys key€2.08

-46% vs Steam RRP

Mechajammer

Steam RRP€12.99

BuyCheapKeys key€6.97

-59% vs Steam

GoD Factory: Wingmen

Steam€8.60

BuyCheapKeys key€3.49

-88% vs Steam RRP

Gangs of Sherwood

Steam RRP€39.99

BuyCheapKeys key€4.71

-84% vs Steam RRP

Hive Jump

Steam RRP€25.63

BuyCheapKeys key€4.16

Dune: Awakening - The Water Wars DLC

Steam€9.99

BuyCheapKeys key€12.74

-37% vs Steam RRP

Dead in Antares

Steam RRP€19.99

BuyCheapKeys key€12.53

-49% vs Steam RRP

Inbetween Land

Steam RRP€5.99

BuyCheapKeys key€3.06

Rex Rocket

Steam€0.79

BuyCheapKeys key€3.80

-29% vs Steam

Gateways

Steam€3.99

BuyCheapKeys key€2.83

-6% vs Steam RRP

Pizza Bandit

Steam RRP€24.50

BuyCheapKeys key€23.12

-17% vs Steam RRP

Psionic Awake

Steam RRP€4.99

BuyCheapKeys key€4.16

-38% vs Steam RRP

SATAZIUS

Steam RRP€5.89

BuyCheapKeys key€3.66

-61% vs Steam RRP

Cyberpunk SFX

Steam RRP€9.75

BuyCheapKeys key€3.85

-72% vs Steam

P·O·L·L·E·N

Steam€9.99

BuyCheapKeys key€2.75

-7% vs Steam

Shallow Space

Steam€14.99

BuyCheapKeys key€13.99

-8% vs Steam

Ultionus: A Tale of Petty Revenge

Steam€6.99

BuyCheapKeys key€6.41

-76% vs Steam

Falcon Age

Steam€16.79

BuyCheapKeys key€4.01

-6% vs Steam RRP

PBA Pro Bowling

Steam RRP€14.79

BuyCheapKeys key€13.85

-72% vs Steam RRP

Tower Tag

Steam RRP€8.99

BuyCheapKeys key€2.48

-36% vs Steam RRP

Project Freedom

Steam RRP€2.99

BuyCheapKeys key€1.91

-83% vs Steam RRP

Sphere - Flying Cities

Steam RRP€17.99

BuyCheapKeys key€3.11

Immortal Defense

Steam RRP€6.99

BuyCheapKeys key€7.41

-81% vs Steam RRP

Breakneck

Steam RRP€10.25

BuyCheapKeys key€1.95

-70% vs Steam

John, The Zombie

Steam€9.99

BuyCheapKeys key€2.97

-23% vs Steam

Death Park

Steam€4.99

BuyCheapKeys key€3.85

-77% vs Steam RRP

Immortal Planet

Steam RRP€14.99

BuyCheapKeys key€3.42