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.

-76% vs Steam RRP

Waking Mars

Steam RRP€8.19

BuyCheapKeys key€1.96

-86% vs Steam RRP

Rogue Stormers

Steam RRP€19.99

BuyCheapKeys key€2.76

-58% vs Steam

STEINS;GATE RE:BOOT

Steam€59.99

BuyCheapKeys key€24.98

-68% vs Steam RRP

PLANET ALPHA

Steam RRP€9.99

BuyCheapKeys key€3.15

Dysfunctional Systems: Learning to Manage Chaos

Steam RRP€4.99

BuyCheapKeys key€5.09

-87% vs Steam

Tesla Effect: A Tex Murphy Adventure

Steam€19.99

BuyCheapKeys key€2.58

-34% vs Steam RRP

The Gold River Project

Steam RRP€24.50

BuyCheapKeys key€16.25

-71% vs Steam RRP

Filament

Steam RRP€16.49

BuyCheapKeys key€4.83

Dark Light

Steam RRP€16.49

BuyCheapKeys key€22.22

-26% vs Steam RRP

Gun Metal

Steam RRP€2.99

BuyCheapKeys key€2.20

-83% vs Steam

Swords of Gurrah

Steam€12.49

BuyCheapKeys key€2.14

-86% vs Steam RRP

Sunrider: Liberation Day - Captain's Edition

Steam RRP€24.50

BuyCheapKeys key€3.49

-42% vs Steam RRP

Farworld Pioneers

Steam RRP€14.79

BuyCheapKeys key€8.51

-74% vs Steam RRP

Synergia

Steam RRP€9.99

BuyCheapKeys key€2.61

Doctor Who: The Lonely Assassins

Steam RRP€5.99

BuyCheapKeys key€6.06

-89% vs Steam RRP

Wild Bastards

Steam RRP€34.99

BuyCheapKeys key€3.81

-79% vs Steam

Diaries of a Spaceport Janitor

Steam€9.75

BuyCheapKeys key€2.05

-81% vs Steam

The Anacrusis

Steam€9.75

BuyCheapKeys key€1.85

-87% vs Steam

Headlander

Steam€19.99

BuyCheapKeys key€2.54

-16% vs Steam RRP

梦魇：无归 Nightmare without return

Steam RRP€6.89

BuyCheapKeys key€5.81

Gun Rocket

Steam RRP€1.99

BuyCheapKeys key€2.58

-93% vs Steam RRP

Popup Dungeon

Steam RRP€24.99

BuyCheapKeys key€1.75

-54% vs Steam RRP

Ecosystem

Steam RRP€19.50

BuyCheapKeys key€9.01

-48% vs Steam RRP

Heaven Dust

Steam RRP€6.59

BuyCheapKeys key€3.42

-70% vs Steam RRP

X3: Reunion

Steam RRP€9.99

BuyCheapKeys key€3.01

-85% vs Steam RRP

The Descendant

Steam RRP€14.99

BuyCheapKeys key€2.24

-65% vs Steam RRP

Darkstar One

Steam RRP€8.79

BuyCheapKeys key€3.09

-75% vs Steam RRP

Capsized

Steam RRP€9.75

BuyCheapKeys key€2.44

-37% vs Steam RRP

Ragnorium

Steam RRP€24.50

BuyCheapKeys key€15.38

Not on Steam

Raiden IV: OverKill

Steam—

BuyCheapKeys key€5.84

-71% vs Steam RRP

Shadowgrounds Survivor

Steam RRP€9.99

BuyCheapKeys key€2.90

-75% vs Steam RRP

BLACKHOLE

Steam RRP€8.99

BuyCheapKeys key€2.29

-72% vs Steam RRP

Insanely Twisted Shadow Planet

Steam RRP€13.99

BuyCheapKeys key€3.95

-50% vs Steam RRP

Ring Runner: Flight of the Sages

Steam RRP€4.99

BuyCheapKeys key€2.48

-80% vs Steam RRP

Outpost Zero

Steam RRP€19.50

BuyCheapKeys key€3.81

-68% vs Steam RRP

Machinika: Atlas

Steam RRP€11.99

BuyCheapKeys key€3.79

Sun Blast: Star Fighter

Steam RRP€1.99

BuyCheapKeys key€2.80

Pacer

Steam€39.99

BuyCheapKeys key€41.75

-67% vs Steam RRP

Turok 3: Shadow of Oblivion Remastered

Steam RRP€28.99

BuyCheapKeys key€9.61

-44% vs Steam

A.R.E.S.: Extinction Agenda

Steam€4.99

BuyCheapKeys key€2.81

Void Scrappers

Steam RRP€3.99

BuyCheapKeys key€6.50

-64% vs Steam RRP

Objects in Space

Steam RRP€20.99

BuyCheapKeys key€7.50

-86% vs Steam

VoidExpanse

Steam€14.79

BuyCheapKeys key€2.11

-82% vs Steam RRP

Gratuitous Space Battles

Steam RRP€14.79

BuyCheapKeys key€2.60

-41% vs Steam RRP

Computer Repair Shop

Steam RRP€9.75

BuyCheapKeys key€5.71

-93% vs Steam RRP

UFO ROBOT GRENDIZER – The Feast of the Wolves

Steam RRP€39.99

BuyCheapKeys key€2.60

-83% vs Steam RRP

CUSTOM MECH WARS

Steam RRP€49.99

BuyCheapKeys key€8.51

-65% vs Steam

Darkout

Steam€8.49

BuyCheapKeys key€2.96