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.

-77% vs Steam RRP

Planet of the Eyes

Steam RRP€9.75

BuyCheapKeys key€2.25

Not on Steam

Beyond Space Remastered Edition

Steam—

BuyCheapKeys key€4.91

-88% vs Steam RRP

On Rusty Trails

Steam RRP€14.99

BuyCheapKeys key€1.81

-61% vs Steam RRP

Beware Planet Earth

Steam RRP€4.99

BuyCheapKeys key€1.96

-36% vs Steam RRP

Hostile Waters: Antaeus Rising

Steam RRP€2.99

BuyCheapKeys key€1.91

-47% vs Steam RRP

W.A.N.D. Project

Steam RRP€9.75

BuyCheapKeys key€5.19

-83% vs Steam RRP

Habitat

Steam RRP€14.79

BuyCheapKeys key€2.56

-11% vs Steam RRP

SunAge: Battle for Elysium

Steam RRP€14.99

BuyCheapKeys key€13.31

-69% vs Steam

Cyberwar: Neon City

Steam€17.49

BuyCheapKeys key€5.49

-84% vs Steam RRP

WORLD END ECONOMiCA episode.03

Steam RRP€12.79

BuyCheapKeys key€2.02

-31% vs Steam RRP

Weird Worlds: Return to Infinite Space

Steam RRP€3.99

BuyCheapKeys key€2.75

-84% vs Steam RRP

WORLD END ECONOMiCA episode.02

Steam RRP€12.79

BuyCheapKeys key€2.00

-19% vs Steam RRP

Looking For Fael

Steam RRP€19.99

BuyCheapKeys key€16.24

-60% vs Steam RRP

Lazy Galaxy 2

Steam RRP€7.99

BuyCheapKeys key€3.20

-7% vs Steam RRP

Rabiez: Epidemic

Steam RRP€2.09

BuyCheapKeys key€1.95

-82% vs Steam RRP

ReThink

Steam RRP€9.99

BuyCheapKeys key€1.81

-77% vs Steam RRP

Antigraviator

Steam RRP€19.50

BuyCheapKeys key€4.42

-89% vs Steam RRP

Frozen Cortex

Steam RRP€22.99

BuyCheapKeys key€2.49

-63% vs Steam RRP

FULL METAL SCHOOLGIRL

Steam RRP€49.99

BuyCheapKeys key€18.31

-77% vs Steam RRP

Sakura Space

Steam RRP€9.99

BuyCheapKeys key€2.34

Not on Steam

Maelstrom: The Battle for Earth Begins

Steam—

BuyCheapKeys key€8.69

-25% vs Steam RRP

Star Control I and II

Steam RRP€4.15

BuyCheapKeys key€3.11

-36% vs Steam RRP

ETHER VAPOR Remaster

Steam RRP€7.99

BuyCheapKeys key€5.11

-69% vs Steam RRP

E.T. Armies

Steam RRP€14.99

BuyCheapKeys key€4.66

-71% vs Steam RRP

Pilo and the Holobook

Steam RRP€12.79

BuyCheapKeys key€3.71

-84% vs Steam RRP

The Wraith of the Galaxy

Steam RRP€19.99

BuyCheapKeys key€3.29

-78% vs Steam RRP

Space Robinson: Hardcore Roguelike Action

Steam RRP€9.75

BuyCheapKeys key€2.11

-66% vs Steam RRP

X-COM: Interceptor

Steam RRP€4.99

BuyCheapKeys key€1.70

-36% vs Steam RRP

ITER-8

Steam RRP€12.99

BuyCheapKeys key€8.34

-56% vs Steam RRP

MoonBase Commander

Steam RRP€5.89

BuyCheapKeys key€2.60

-63% vs Steam RRP

Zomborg

Steam RRP€4.99

BuyCheapKeys key€1.85

-68% vs Steam RRP

City of Chains

Steam RRP€8.99

BuyCheapKeys key€2.84

-20% vs Steam RRP

ROOT

Steam RRP€4.99

BuyCheapKeys key€3.99

-70% vs Steam RRP

Last Horizon

Steam RRP€5.69

BuyCheapKeys key€1.70

Date Warp

Steam RRP€9.75

BuyCheapKeys key€17.29

-85% vs Steam RRP

Impulsion

Steam RRP€12.99

BuyCheapKeys key€1.98

-77% vs Steam

Space Company Simulator

Steam€16.79

BuyCheapKeys key€3.85

Not on Steam

Smugglers 5

Steam—

BuyCheapKeys key€21.61

A.R.E.S. Extinction Agenda EX

Steam€9.99

BuyCheapKeys key€10.40

-37% vs Steam RRP

GUNHEAD

Steam RRP€19.50

BuyCheapKeys key€12.36

-81% vs Steam RRP

The Gap

Steam RRP€19.99

BuyCheapKeys key€3.73

-48% vs Steam RRP

Zombies on a Plane

Steam RRP€4.99

BuyCheapKeys key€2.58

Deep Space Dash

Steam RRP€2.09

BuyCheapKeys key€2.39

-81% vs Steam RRP

Diluvian Ultra

Steam RRP€9.99

BuyCheapKeys key€1.91

-60% vs Steam

Dark Scavenger

Steam€4.99

BuyCheapKeys key€1.98

-69% vs Steam RRP

Dark Moon

Steam RRP€19.50

BuyCheapKeys key€6.06

-82% vs Steam RRP

LONE RUIN

Steam RRP€12.49

BuyCheapKeys key€2.23

FLASHOUT 2

Steam RRP€9.79

BuyCheapKeys key€16.75