Free Sci Fi Games

Free 2D/3D Offline Adult Games.

Pointer V New Final Version 1.0 Full Game Asario

Hey, hero, try on your cadet uniform, but don’t put it on your pants, because human civilization has just repelled a fierce Groovling attack. The Earth Federation is selecting from among the most talented young men and women those who will not be afraid to face the danger of confronting the growing threat of alien monsters.
But everything has its own time … Start your way as an ordinary cadet, imbued with a sai-fi setting and through an interesting interaction with a large number of original characters – reach the highest ranks. Or maybe your path on the contrary lies through the destruction of modern civilization. How to know. The choice is always yours!
The only thing we can vouch for is that you definitely won’t be bored plunging into the exciting new world of an original game with an original storyline and adult content.
My Boyfriend is a Martian Version 2024-05-02 火星愤怒 Goldenmaster

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!
Left Hand Magic New Version B.16 Novus

A talented Battlemage, you are struggling to find work for your type of magic in a post-industrial
(Magitek/Magic Punk) world that no longer has much need for battle magic. To be fair, you were warned about this.
Your parents, your friends, even your instructors at university all pointed out that Battle Magic,
once the most important of all fields, has long lost its purpose.
The monsters are all dead or uplifted to being civilized.
Dungeons all long since discovered, looted, and destroyed.
Even warfare is now dominated by magitek warmachines and tools, all the products of artificers and enchanters.
Stranded in Space New Version Day 19 WildMan Games

You wake up on a spaceship filled only with women travelling to another planet, unaware of how you got there.
You must navigate your days aboard the Endurance, making key decisions about your relationships with your shipmates,
while trying to figure out the larger mysteries at play involving your reason for being on the ship,
and why its destination to the sanctuary planet of Elysium isn’t going according to plan.
You are Stranded in Space!
Sombionic New Version 0.2 Sombionic

Shoot monsters and romance them during combat! In Sombionic you play as a female scientist fighting monsters and genetically engineered humans, harvesting their rare genes and organs for your own inventory. Once pristine habitats are now overrun by genetically enhanced species, their presence transforming these landscapes into biopunk arenas of rivalry.
Callisto-X New Version 0.78 ProfessorX-10

Callisto-X is a new unofficial fan game based on Callisto by Xavster_Gaming
Solidly based on the original but with new challenges, enhancements and story changes.
Once again you play the role of a former military officer, now trying to make a living by trading and scavenging in the vastness of space.
Your ship is the Callisto, your crew a group of exotic & talented women from across the Galaxy who will intimately aid you in your quest.
Will you save the Galaxy? Or will you DIE in the attempt? Will you be a Hero? …or just another dead body floating in space?
Paracosmic Reality New Version 1.7.0p Prologue Jiggly Stone Studios

Waking up one day to find a mysterious letter in your mail, you find that you’ve been given some property!
Little did you know this new home would change your entire world!
Unravel the mystery of why you were given this property and the implications of owning it!
All while being joined by a bunch of cuties along the way!
Tentacles Invasion Final Version Full Game Koguma Project

On the way back to Earth, the space freighter Nostromo 2 encounters an emergency, and crew member Veronica Wenger is awakened from cryosleep. The ship is infested with mysterious creatures, and there is no communication with the other 9 crew members. In response to the computer “HOLLY9000,” Veronica embarks on a mission to save her fellow crewmates.
The Last Star Walker New Chapter 1 Veluxa

In the vast cosmos, two realms stand out: Navā, a mystical world where magic flows freely, and Terra,
a technological marvel at the peak of innovation. Both face exploitation by power-hungry elites.
As the boundaries between Navā and Terra begin to blur, a critical question arises:
What happens when these worlds collide?
Will you side with the Extinctionists, who believe one world must dominate the other, or the Expansionists,
who seek a harmonious fusion of magic and technology?
Or will you forge your own path, bridging the divide between duty and desire, love and vengeance?
The fate of humanity rests in your hands.
Colony City 27λ New Final Version 1.1.0 Full Game Bunny Eats Tiger

Colony City 27λ is an adult Rougelite game that combines simple card and complax skill set. In the story, there are plenty of challenging malevolent criminals, tentacle creatures, and mechanical enemies. Your battle performance during the adventure will determine the final ending!
Hunter Space Pirates Version 0.1.4 Mr.Mister

At the tender age of three, our protagonist is separated from his mother under mysterious circumstances. A compassionate couple of neighbors, mourning the loss of their own son, adopt him. His foster father, a former Navy combat pilot known as “Viper,” nurtures his passion for airplanes. However, tragedy strikes when the couple is killed by a hungry Grizzly bear. Now, on the cusp of adolescence, the boy is sent to a foster home where he must navigate life surrounded by four women. His journey to discover his true self is accompanied by a series of encounters with the girls at his foster home, each interaction shaping his understanding of relationships and desire.
The Necromancer Arises New Version 0.05b Whiteleaf Studio

The story follows a powerless protagonist who, one day, discovers a mysterious book in his front yard.
Little did he know, this book would awaken his latent hunter skills, turning him into a force to be reckoned with.
Living with his mother, sister, and a recently summoned zombie (thanks to his newfound abilities),
he joins the prestigious Hunter’s Academy.
There, he’ll face thrilling challenges, make new friends and enemies, and experience love and romance like never before.
But it won’t be easy, as he’ll have to fight his way through dangerous gates that threaten the very fabric of reality.
Think of it like Solo Leveling, but with a twist of romance and a whole lot more excitement!
The Last Star Walker Version 0.1 Veluxa

In the vast cosmos, two realms stand out: Navā, a mystical world where magic flows freely, and Terra,
a technological marvel at the peak of innovation. Both face exploitation by power-hungry elites.
As the boundaries between Navā and Terra begin to blur, a critical question arises:
What happens when these worlds collide?
Will you side with the Extinctionists, who believe one world must dominate the other, or the Expansionists,
who seek a harmonious fusion of magic and technology?
Or will you forge your own path, bridging the divide between duty and desire, love and vengeance?
The fate of humanity rests in your hands.
Behind the Doom New Version 0.8 UnrulyAction

Behind the Doom is a comic-based parody adult visual novel with Doom as the protagonist.
He’s up to his old tricks of attempting rule a world that is threatened and repulsed by Latveria’s free use society.
While the A plot revolves around Doom attempting to corrupt Sue and show her the more sexually open ways of Latveria other heroines are planned to appear with Wanda already taking a quite prominent role.
Through each heroine that comes under Doom’s control he become ever closer to global dommination.
Masters of Raana New Version 0.8.3.4 T4+ GrimDark

You begin the game as a nobody trying to start up a new life in Ikaanos after inheriting a house from your older brother.
The city of Ikaanos is an abandoned colony on the densely forested planet of Raana. After a sudden separation from Earth, Ikaanos became a cauldron of despair and violence that forced almost half of its human population into slavery.
Today, two brutal centuries later, feudal-like kingdoms fight among themselves over power and influence, when they’re not busy dealing with the planet’s dangerous megafauna.
It’s Just A Game New Version 0.3.2 DigiDec

Will you struggle to maintain control over yourself and your identity, or will you succumb to temptation as your life blends with fiction? If perception is reality, are there any objective truths?
SlutCraft Heat of the Sperm New Version 0.42 Shadow Portal

It seems like Sarah Kerrigan was a loyal member of Sons of Korhal and obeyed Arcturus Mengsk’s orders to every syllable just yesterday. But who would’ve thought that Mengsk didn’t forgive Sarah for killing his father.
Because of his plots and betrayal, a secret operation on Tarsonis, the capital of the Confederation, turned into a bloodbath and a ‘captive’ status for Sarah herself, but as she found out later, it was just another hard way to promising new opportunities. Opportunities to become stronger. To get revenge. To get some pleasure…
This is a story about Sarah Kerrigan’s path from a loyal soldier to a powerful (and sexy) Queen of Blades.
Deep Vault 69 New Version 0.3.9a bohohon

Howdy, pardner! Might I say, you’re looking fit as a fiddle!
And this is not surprising, because you are one of the survivors in a comfortable vault!
But it’s time to get to the surface to explore the world. Well, or try to do it.
Selara Update 7 Added Android Port Sacred Sage

The main story takes place eighty years after leaving Earth when you wake up from cryostasis in the middle of a mutiny. You are the new Commander of a ship called The Herald. As the story progress it will be up to you to save humanity while also earning the trust of your crew members. Your inner circle consists of an A.I. your squad leader and team leader, a medical scientist, and a mechanic/engineer. As the story progress you realize that a mutiny is the least of your worries. Your food and water supply is damaged and needs to be repaired. While the human population is also dwindling. It’s up to you to navigate and lead your remaining people to prosperity.
Shelly’s Future Past New Episode 2.2 SexyShelly

Shelly’s Future Past is a Sci Fi Erotic Lesbian Time Travel Adventure, about a female protagonist 23 year old lesbian woman, who lives in the year 3077 within Cyber City with her best friend Triss
Shelly, who, has lived a emotional rollercoaster life, is special in way that will come to light in this visual novel
A Mystery Lady from the future, that knows Shelly very well, travels back in time to find Shelly and asks her for her help to stop the end of the world from 5 very powerful men in the future that have taken control of the Earth
Shelly thinks she is travelling back in time to change the past to save the future, but, will quickly find out she is actually needs to correct the time line
Shelly is asked to travel back in time, to five very different time lines, to find 5 straight woman, one on each time line and find a way to stop them from ever getting pregnant, no one knows who their children’s father is, but Shelly needs to stop each woman from getting pregnant which will stop 5 powerful men own great grand parents from ever being born, resulting in them never being born, this will then will save the future and end the war
But it won’t be easy, as one of the powerful men is also travelling back in time.
GIRLDIVERS Demo Version 2.0 Sweet Cakes Games

Join the GIRLDIVERS, humanity’s last line of offense against an overwhelming alien menace. Command sexy girl soldiers in a rich campaign full of randomly generated challenges, unforgiving enemies, sci-fi gadgets, and heavy firepower. Engaging in lewd punishments and rewards along the way.
SpaceCorps XXX Season 2 New Version 2.7.2 RanliLabz

You play as a naive young farmhand from Ganymede, thrust into an exciting (and raunchy) galaxy when you’re conscripted into SpaceCorps. Meet the training crew of the USS Mercury – a rag-tag of gorgeous aliens, sexy cyborgs and predatory milfs. Seduce your beautiful fellow cadets in an ongoing dating-sim to see just how close you can all get. Visit strange new worlds and new civilizations with very different moral codes.
Your path is open for you to choose. Help a self-aware AI find out what it feels like to be human; or find out just what connection the strict Drill Sergeant has to your past. Seduce your childhood sweetheart; or humiliate your school bully. Explore kinks you never even knew you had!?
Cheeky Take Two Version 0.16 Wrench Phillips

Female protagonist, mostly FF scenes and story. Interdimensional stuff.
It’s really not that complicated, but it is quite convoluted.
If you want some slightly funny stuff that might make you chuckle, some boobs,
and tons and tons of words, this is for you. Western, scifi, modernish setting and some demons.
Star Warrior and Space Girls New Version 0.3 Demo Typiconart

Typiconart presenting an adult visual novel story about Melivan Canscand,
that become on a third year of the Clone Wars a Jedi Knight and joined to Ahsoka Tano and clones army.
Experience this story and choose destiny of characters.
Project DPS Version 1.0.0 Bspined

In this sci-fi game, the main character fights against enemies while searching for lost memories and collecting data fragments to restore them.
As they advance, they gradually uncover the sexual abuse they experienced in the past.
Erosphere New Version 9.9.12.3-2k bdot.labs

Set in the near future, AI has advanced greatly, and a company is about to launch a new AI prototype. You are the CEO’s son. Your story begins one night in your room, awakened by a sudden bright light. An attractive woman, claiming to be an alien, appears and asks for your help with an important mission. This strange visit leads you on a journey filled with challenges and discoveries.
The Long Way New Version 0.08.0 Muffin Maker

With the 13 Galaxies in limbo, your quest, if you choose to accept it, is to turn order into chaos, strength into weakness and leaders into puppets.
While there is still very little content (understatement of the year), the mechanics of the game have been resolved to allow for an almost infinite cast of characters and locations.
Our next target for the game is character interactions and creating the first of many worlds.
Parasite Inside New Version 0.2.1 Kodman

In this gripping Sci-Fi Horror game, our protagonist, Oni Lim, awakens aboard a colonization spaceship. However, as she awake from her slumber, she quickly realizes that all other crew members remain in cryogenic stasis, and critical ship systems are malfunctioning. Determined to uncover the source of the problem, Oni embarks on a perilous journey through the labyrinthine corridors of the ship. What she discovers amidst the flickering lights and ominous shadows is nothing short of shocking.
Mei’s Project New Version 10.0 IlluXXXtrandy

It’s the day when teachers evaluate the final projects of the students at the prestigious U.A. Hero Academy.
Mei Hatsume, known for her outrageous inventions, has created a new ‘baby’ claiming it will be a total revolution.
However, she states that it’s exclusively aimed at heroines,
so Professor Midnight will be in charge of evaluating her project…
What will Mei’s new invention be?
Tales From The Unending Void Season 2 New Version 0.20.0 Extra Scenes Edition Taboo Edition Perverteer

Camran is a young minor noble from the Sovereignty, a part of space dominated by humans. Erstwhile cadet of the Terran Naval Academy, Cam has been forced by circumstances to travel the galaxy, together with a band of friends, taking on menial jobs and occasionally smuggling some illicit cargo. As he involuntarily becomes part of sinister plans machinated by powerful intrigants, Camran’s life is changed forever…
Galactic Outlaws New Version 0.4 GUS

Play as a young man in a sandbox game where you, your step-mom and your step-sis are on the run from the Human Federation.
After your father is captured, you must flee your home planet in a spaceship and embark on a journey through the galaxy.
Encounter challenges and obstacles, discover new planets, uncover the truth behind your father’s capture, and also enjoy some hot scenes with all range of girls from across the universe.
Mech Academy New Version 0.5.17.1 Space Samurai Games

Mech Academy is an adult visual novel based on multiple-choice decisions. The player will take on the role of the protagonist in this story and meet different characters and try to develop a relationship with them. The player’s decisions will have an impact on the evolution of the story.
“It is the year 2175, and you are the pilot of a Mech Guardian. These are giant war machines built to defend Earth from the Noxa, a ruthless alien race intent on conquering your planet. However, you do not belong to this period; you are actually Lieutenant Knight, a highly decorated soldier who lived in the 1970s. Because of a mysterious experiment, you have been catapulted two centuries into the future. Everything is new and complicated for you. Your world, the society you grew up in, is profoundly different from the one you are in now.”