Best sci-fi Adult Games

215 games

Sci-fi adult games unfold in futuristic or space-based worlds, blending technology, alien encounters, and advanced societies with adult content. Browse free sci-fi adult games for imaginative settings where the erotic and the futuristic collide.

Chronicles of Kartoba — free Ren'Py adult game download

★★★★★(27)

Chronicles of Kartoba

SinisterSlick Games

3DCG Animated +21

Tamer: King of Dinosaurs — free Unreal Engine adult game download

★★★★★(26)

Tamer: King of Dinosaurs

Ride The Lion Studios

3D Game 3DCG +19

Build 2026-07-31

RedStone — free HTML adult game download

★★★★★(22)

RedStone

MoonlightCatz

2DCG Adventure +15

v0.2.2.002 Beta

xxxFiles — free Ren'Py adult game download

★★★★★(21)

xxxFiles

Caine.Totally.Sane

3DCG Adventure +33

Masters of Raana — free HTML adult game download

★★★★★(20)

Masters of Raana

GrimDark

3DCG Adventure +32

Crisis Point: Extinction — free Others adult game download

★★★★★(20)

Crisis Point: Extinction

Anon42

2D Game 2DCG +11

Imperial Bureaucracy Hero — free Ren'Py adult game download

★★★★★(20)

Imperial Bureaucracy Hero

Munitions Mori

2DCG Adventure +11

Terminus Reach: Sentinel 2 — free Ren'Py adult game download

★★★★★(20)

Terminus Reach: Sentinel 2

Talothral

3DCG Anal Sex +15

SlutCraft: Heat of the Sperm — free Ren'Py adult game download

★★★★★(20)

SlutCraft: Heat of the Sperm

Shadow Portal

2DCG Adventure +42

The Pilgrimage — free Ren'Py adult game download

★★★★★(20)

The Pilgrimage

Messman

3DCG Adventure +24

Projekt: Passion — free Ren'Py adult game download

★★★★★(20)

Projekt: Passion

Classy Lemon

3DCG Adventure +21

Lust Odyssey — free Ren'Py adult game download

★★★★★(20)

Lust Odyssey

Xperiment

2DCG Anal Sex +31

Rick and Morty — free Unity adult game download

★★★★★(20)

Rick and Morty

Ferdafs

2DCG Anal Sex +19

Behind the Dune — free Flash adult game download

★★★★★(20)

Behind the Dune

David Balsamique

2DCG Ahegao +40

Reincarnotica — free Ren'Py adult game download

★★★★★(20)

Reincarnotica

Polyrotix

3DCG Big Ass +21

Cyberheart — free Ren'Py adult game download

★★★★★(20)

Cyberheart

DiPeppo

3DCG Adventure +13

v0.3.5 (Extra 1)

Plastic Soul — free Ren'Py adult game download

★★★★★(20)

Plastic Soul

Huli

2DCG Anal Sex +15

FemCity — free Ren'Py adult game download

★★★★★(20)

FemCity

Kiriowo

3DCG Anal Sex +14

Star Periphery — free Ren'Py adult game download

★★★★★(20)

Star Periphery

VoidPilgrim

3DCG Ahegao +39

Ashes of War — free Unity adult game download

★★★★★(20)

Ashes of War

CTStudio

2DCG Animated +10

Space Journey X — free Ren'Py adult game download

★★★★★(20)

Space Journey X

y.v.

3DCG Anal Sex +18

Broken Dreams Correctional Center — free Godot adult game download

★★★★★(20)

Broken Dreams Correctional Center

RahiMew

2DCG Adventure +34

The Alpha Gender — free Ren'Py adult game download

★★★★★(20)

The Alpha Gender

Mikethe3DGuy

3DCG Animated +17

Cyber Fuck Dolls — free Ren'Py adult game download

★★★★★(20)

Cyber Fuck Dolls

ApeStudios

3DCG Adventure +44

Starbreed — free Unity adult game download

★★★★★(20)

Starbreed

Regulus

2DCG 3D Game +15

v1.0.2 + DLC Steam

Hunted on Eclipse-9 — free Unity adult game download

★★★★★(20)

Hunted on Eclipse-9

FinalFetish

3D Game Ahegao +24

Mercanoid — free HTML adult game download

★★★★★(20)

Mercanoid

Pyksies

Adventure Ahegao +41

Waifu Dreams City — free Unreal Engine adult game download

★★★★★(20)

Waifu Dreams City

Waifu Dreams Studio

3D Game Ahegao +47

Lesson of Passion Collection — free Unity adult game download

★★★★★(20)

Lesson of Passion Collection

Lesson of Passion/Sex & Glory/Real Love 3D

3D Game 3DCG +33

Heatwave — free Godot adult game download

★★★★★(20)

Heatwave

Flowpix

2D Game Anal Sex +16

Power of Will — free HTML adult game download

★★★★★(20)

Power of Will

G28

AI CG Anal Sex +40