List of sci-fi Porn Games
Discover and download the best sci-fi porn games for free. Our collection includes adult games for various platforms, tailored to your preferences.
LustGames currently have 1752 sci-fi porn games available to download. The games are sorted in order of relevance with the best sci-fi games coming first.
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- List of sci-fi porn games
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The Obsidian Vow
You were the price of a treaty: one Sarto heir married to Roman Bellandi, the man who owns Valmarra's docks, its judges, and half its bodies. Now you live inside the house of the family that ruined yours — with a husband who watches you like a debt coming due, a brother-in-law who wants you, and the missing half of your father's ledger hidden somewhere in the city.
romance
blackmail
rape
graphic violence
female protagonist
pov
text based
simulator
rpg

Haremwatch - Juno Has Landed! [v1.0]
The young Space Traveler from Mars lands on Earth and onto your heart in this short story. This is a standalone build to introduce an upcoming character to the main Haremwatch build. Available in browser, and for windows, android, and mac.
2dcg
adventure
big ass
big tits
dating sim
handjob
humor
lesbian
male protagonist
mobile game
oral sex
parody
romance
sci-fi
sex toys
vaginal sex
![Haremwatch - Juno Has Landed! [v1.0]](/Games/Haremwatch--Juno-Has-Landed/miniMainImage.webp)
In Finite Space [v1.7.0]
In Finite Space is a furry visual novel that explores the invasion of a deadly foe, and those that rise up to combat them. Join the ranks of the illustrious Knights of the Asterism Union, as a Squire in training for the Cavalry division. The first engagers to incursions and the most respected, bu...
2dcg
adventure
furry
gay
male protagonist
mobile game
romance
sci-fi
![In Finite Space [v1.7.0]](/Games/In-Finite-Space/miniMainImage.webp)
Instinct Program [v0.3]
Meet Adeline Shimizu, the main character of 'Instinct program' A principled and strong female character and also a detective who is investigating the disappearance of her colleague Christine Shore.
3dcg
big tits
exhibitionism
fantasy
female protagonist
humiliation
monster
sci-fi
sexual harassment
voyeurism
![Instinct Program [v0.3]](/Games/Instinct-Program/miniMainImage.webp)
Interstellar Business [v0.1.1]
Steven is a fierce space pirate. But after a battle with the fleet of the intergalactic empire, he loses almost all of his crew and his ship. Stranded on a planet far from the empire, he has to rethink who he wants to be.
3dcg
male protagonist
oral sex
prostitution
sandbox
sci-fi
sex toys
trap
virgin
![Interstellar Business [v0.1.1]](/Games/Interstellar-Business/miniMainImage.webp)
Knucklebomb! [v0.1]
So allow me to introduce Lucca and Danni. their names will be customizable. Lucca is a lighthearted and aloof young man who tends to not take things too seriously. He prefers action over planning, and left to his own devices tends to be casual and spontaneous. But don't let that laissez-faire att...
3dcg
adventure
animated
big ass
big tits
fantasy
female protagonist
futa/trans
group sex
male protagonist
milf
monster
monster girl
multiple protagonist
oral sex
sci-fi
teasing
vaginal sex
voyeurism
![Knucklebomb! [v0.1]](/Games/Knucklebomb/miniMainImage.webp)
Legacy of the Ancients [v1.01b]
Welcome to Locus Solus, a secret base of the Terran Authority. Well, not so much since you've been sent on the planet in order to mess up with the Authority for the glory of the Kult. Find and infiltrate the Terran secret base to discover all its secrets. Play Kylia, a greedy Kult mercenary ready...
big tits
female protagonist
group sex
lesbian
mind control
real porn
sci-fi
vaginal sex
![Legacy of the Ancients [v1.01b]](/Games/Legacy-of-the-Ancients/miniMainImage.webp)
Lucy - The Eternity She Wished For... [v1.13 Classic Skin DLC]
Lucy ~The eternity she wished for~ is a Visual Novel, about a boy and an android.You play as the boy, who faces decisions and moral dilemmas in this near-future world.This is a story that has touched many hearts and continues to have a strong impact on those who partake in this compelling journey...
2dcg
adventure
cosplay
fantasy
male protagonist
monster girl
multiple endings
no sexual content
romance
school setting
sci-fi
voiced
![Lucy - The Eternity She Wished For... [v1.13 Classic Skin DLC]](/Games/Lucy--The-Eternity-She-Wished-For/miniMainImage.webp)
Lust Beyond Gravity [v0.3-Early Access]
What started as curiosity... became the adventure of a lifetime. You're just minding your own business when something streaks across the sky and crashes nearby. Most people would call it in and walk away. Not you. You follow the smoke, find the wreckage, step inside — and before you can process ...
2d game
2dcg
ai cg
anal sex
animated
bdsm
big ass
fantasy
footjob
groping
interracial
male protagonist
milf
oral sex
sci-fi
shooter
teasing
tentacles
titfuck
vaginal sex
voiced
![Lust Beyond Gravity [v0.3-Early Access]](/Games/Lust-Beyond-Gravity/miniMainImage.webp)
Lust Man Standing - FAP Edition [v1.2 Night Outfit]
The game takes place in a world where you are the last man alive. The city is filled with beautiful girls that has their own distinct storyline. You are free to explore different locations in the city and pursue whichever girls you find attractive. Each girl is crafted with care to make them beau...
3dcg
animated
corruption
creampie
dating sim
dystopian setting
exhibitionism
female domination
groping
harem
humor
incest
lesbian
male protagonist
management
masturbation
milf
point & click
pregnancy
romance
sandbox
sci-fi
simulator
sleep sex
titfuck
transformation
vaginal sex
virgin
voyeurism
![Lust Man Standing - FAP Edition [v1.2 Night Outfit]](/Games/Lust-Man-Standing--FAP-Edition/miniMainImage.webp)
Mars: Scarlet Horizons Under Charcoal Darkness [v1.06]
You play as Joe Smith (renamable), the mission engineer, veteran astronaut, and a billionaire thanks to co-creating the breakthrough energy source. You are part of the first mission team traveling to Mars. You will discover how the harshness of the Martian surface reshapes your relationships with...
3dcg
adventure
creampie
interracial
kinetic novel
lesbian
male protagonist
sci-fi
sex toys
teasing
vaginal sex
![Mars: Scarlet Horizons Under Charcoal Darkness [v1.06]](/Games/Mars-Scarlet-Horizons-Under-Charcoal-Darkness/miniMainImage.webp)
Mission Mermaiden ~Hasumi and the Deep Sea Sisters~
In the year 2101 AD, Hasumi is sent on a mission to a far-away land in a world ravaged by alien invasion. She's to confirm the existence of a rumored bioweapon in the Karimantan Jungle. It seems like an easy enough mission, but...
2d game
2dcg
adventure
anal sex
animated
bdsm
big ass
big tits
creampie
fantasy
female protagonist
groping
group sex
humiliation
japanese game
lesbian
masturbation
monster
monster girl
multiple penetration
oral sex
platformer
rape
sci-fi
sex toys
tentacles
vaginal sex

My Boyfriend is a Martian
Meet Katy, your average small-town gal. After a grueling day at work, she's just trying to make it back home. Little does she know, the universe has some surprises in store for her during her long journey. Get ready for an adventure that's out of this world!
3dcg
anal sex
big ass
big tits
creampie
female protagonist
group sex
kinetic novel
monster
multiple penetration
oral sex
paranormal
sci-fi
vaginal sex

Naked Weapon [v0.3.0 Alpha]
Fuck fairy tales. This isn’t a heroic journey. It’s a scorched-earth revenge story about betrayal, chemical warfare, and the long road back from expendable to unstoppable. You play as Sasha Carver, a former elite operative discarded by the very corporation she helped build: Selica Pharmaceuticals...
3dcg
ai cg
corruption
female domination
female protagonist
graphic violence
handjob
oral sex
rpg
sandbox
sci-fi
text based
titfuck
turn based combat
![Naked Weapon [v0.3.0 Alpha]](/Games/Naked-Weapon/miniMainImage.webp)
Neon Effect! [v0.1.1]
Neon Effect is an interactive Adult Visual Novel with dating sim and light gameplay, aspects in a streamlined point-and-click environment. In the distant future, technology towers above all. Cybernetic body enhancements (CBE) are as common as tattoos and virtually essential to get by. However, a ...
3dcg
adventure
animated
big ass
big tits
fantasy
groping
male protagonist
milf
point & click
puzzle
sandbox
sci-fi
teasing
![Neon Effect! [v0.1.1]](/Games/Neon-Effect/miniMainImage.webp)
Neon Futa Mecha-Lust Apocalypse
Neon Futa Mecha-Lust Apocalypse is a narrative visual novel and a love letter to 70s, 80s, and 90s mecha anime. Prepare to be dominated by a cast of sexually aggressive futanari waifus in this unique erotic adventure.
2d game
2dcg
ai cg
big ass
big tits
futa/trans
handjob
harem
humiliation
humor
male protagonist
oral sex
parody
sci-fi
side-scroller
stripping
turn based combat
vore

Nineteenth [v0.01.5 Alpha]
You are invited to play as a young man named Patrick, the owner of an art gallery. Our hero lives in a big city with his girlfriend Brenda. They lead a calm, measured life, where their main problem is to decide whether to stay in the city or move. But one day, an event occurs on country roads tha...
3dcg
male protagonist
oral sex
sci-fi
vaginal sex
![Nineteenth [v0.01.5 Alpha]](/Games/Nineteenth/miniMainImage.webp)
Para Ark [v1.11]
Currently in a very early development stage! Main Focus: Breed/ Pregnancy, Alien, Monster girl, Breast Expansion. Main character mates with alien and breed monster girl. Each monster girl is exclusive, you can't breed duplicated offspring of the same type.
2dcg
animated
big ass
big tits
creampie
female protagonist
monster
pregnancy
rape
sci-fi
vaginal sex
![Para Ark [v1.11]](/Games/Para-Ark/miniMainImage.webp)
Project Dreadsteel [v0.1.4]
A couple of years after your mother's demise, you barely got by each day. Emotionally crushed and facing the harsh reality of the world, you get an invitation to KRI (Kyoto Research Institute) A strange proposition, but it's better than nothing... Little you know it will uncover a whole new world...
3dcg
animated
big ass
big tits
handjob
male domination
male protagonist
mobile game
oral sex
sci-fi
teasing
![Project Dreadsteel [v0.1.4]](/Games/Project-Dreadsteel/miniMainImage.webp)
Rainy Skies
Rainy Skies is an RPG set in a cyberpunk dystopian world. You start the game with very little to your name, and do whatever you can to make something of yourself. The main story follows a girl named Mable, and as you meet and gain allies, you'll be able to branch off into other plotlines.The game...
2dcg
adventure
animated
bdsm
combat
corruption
female protagonist
male domination
monster
prostitution
sci-fi
tentacles

Return Project [v0.05]
Ever wanted to travel through time and experience historical events first hand, as they happened? Well, you cant, that's impossible. But what you can do, is play Return Project. Starting in a dystopian future (to plot-armour the science), you'll adventure through various turning points in human h...
3dcg
adventure
animated
bdsm
big ass
big tits
fantasy
groping
group sex
humiliation
humor
male domination
male protagonist
oral sex
romance
sci-fi
slave
voyeurism
![Return Project [v0.05]](/Games/Return-Project/miniMainImage.webp)
List of sci-fi Porn Games by Platform
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List of sci-fi Porn Games
LustGames organizes porn games into 117 categories. Browse the tags below to find games matching your interests—each game can belong to multiple categories.