Free Sci Fi Games

Free 2D/3D Offline Adult Games.

Dream Dance Version 0.1.1 FeeLuck_Games

Mate, it’s 2044, somewhere on this big old Earth. Now, let me spin you a tale about this college-age dude.
Yeah, he’s got a bit of a rough start with some disability, but honestly, he’s just your average bloke, not making any big waves. In this not-so-distant future, massive corporations are running the show, pulling the strings on everything.
Space Slut Adventures Final Version Full Game Pink Pencil

Explore 15 different levels featuring around 60 different monsters. Jump and shoot – a fairly simple game.
Sex Universe Final Version Full Game Octo Games

Welcome to Sex Universe [18+], a space clicker game that intertwines sexuality, adventure, and modern technology in an immersive space streaming simulation.
This is a clicker game.
Shards of Her New Version 0.3.6 Soul Persona

Hundreds of years ago, Michael, a demi-god with a heart full of love,
experienced the profound loss of his beloved.
She disappeared, leaving no trace behind.
Whether she perished or merely vanished remains a mystery.
Despite his tireless search, she remained elusive.
Eventually, he resigned himself to her absence, though he held her dear in his heart.
Haremwatch Version 0.02A GachapenGames

In the present day, you find yourself taking part in a sketchy science experiment. Eventually you awaken in the future… the future of the Overwatch universe! A lot has changed in the past 60 years, notably… well, play the game to find out! You can be sure that this adventure will lead to a great time and LOTS of lewd fun!
Inura New Version 0.712 ProInu

Main character got sent to an alien world. Where she struggles for survival.
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?
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.
Color of My Sound New Chapter 3A Version v6 Gallant Trombe

Info:
Color of My Sound is a Sci-Fi, Espionage, Drama, Erotic visual novel set in an original setting. It is a universe chock full of potential for character drama, conspiracies, espionage, intrigue and action.
The story began when a rebellion on an unprecedented scale erupted across the Empire’s worlds and humanity faces an uncertain future for the first time since the Empire’s inception. The infamous day has abruptly altered the lives of many, including our protagonist.
Follow the story of the Officer, as he carefully manoeuvres around the machinations of various powers of the Empire, each vying for his allegiance or death…
As the commanding officer of Special Operations Squad “Nu”, form camaraderie, rivalry, and even romance with your team members. Careful, each member has their own hidden agendas and personal stake. Pay careful attention, trust no one, you will need to earn the loyalty, perhaps even love of each member to survive this journey.
Project EVE Version 2.0 HexErotica

Take on the role of Evette Flores “Eve” as she navigates through a series of unexpected events. What fate awaits her?
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.
Stellar Incognita New Version 0.9.5 Slamjax Games

Stellar Incognita is a sci-fi visual novel with multiple branching paths and endings, built around the central themes of mind control and corruption.
The year is 3922 and humanity is colonizing the vast reaches of a wild and unknown space, known as the STELLAR INCOGNITA. You play the role of Sagacious-6, a nefarious and opportunistic clone worker that researches forbidden technologies for mind manipulation and corruption, in order to seek a life of indulgence and self-satisfaction. Set on a mission of revenge at the outset of the story, what fate awaits Sagacious-6 in the STELLAR INCOGNITA?
Hotime Saga Version 0.1 AdultPlay

Hotime Saga is a fully animated, open-world novel and dating sim where androids handle politics while humans serve as the labor force.
Experience dating/fucking fascinating characters in this futuristic world, including both women and androids. Inspired by Summertime Saga and other popular games in the genre, Hotime Saga aims to bring something new for the players.
We hope you enjoy your time!
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.
Stellar Dream New Version 0.55 Winterlook

Stellar Dream tells a story about a colony ship set to find new worlds suitable for human colonization.
Scouts were send to three most suitable candidates but communication with them has been lost.
The player’s task is to bring the scouts home,
find a suitable home for the colony and establish diplomatic relations with alien life forms.
Cybernetic Seduction New Episode 5 Part 1 1Thousand

A thrilling story where highly-skilled agents enter the simulation to pull off a grand scam. Your Target? Hector Zhine.
Make connections in the New Zhine City to infiltrate his criminal empire. As a Cock – an agent whose sole responsibility is to seduce women around the Target – you have the ability to penetrate Zhine’s inner circle. With each member demanding a distinct approach, seduction alone won’t get the job done. Be trustworthy, reliable, resourceful to charm your way into Zhine’s family hearts. Convince his assistant and his employees that you are the answer to all their needs and desires.
The closer you get to the top, the more dangerous the mission becomes, as the simulation’s alerted security system always watches.
Good luck, Agent!
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?
How To Fix The Future Chapter 1 New Version 0.3.2 mr.moonmi

A young man lives an ordinary life. Working as a simple salesman, he escapes reality by playing video games at night. Life hasn’t been fair to him, but everything changes when people around the world start getting mysterious game disks. And when two agents from the future show up, he suddenly becomes involved in the most incredible adventure of his life.
Discover the secrets of time. Meet beautiful girls on your journey. And make decisions that will change the flow of time.
This is a story oriented sci-fi adventure novel. Where events will take place both in our time and in the near future.
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.
FemCity New Version 0.6.0 Kiriowo

In this game you play as a man, who stuck in the city where males are discriminated while females rule everything in this dark cyberpunk future.
Will you able to survive and more of that, manage to escape from the FemCity?
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.
Cyan Brain New Version 8.1 Demo NEKOUJI STUDIO

Cyan Brain is a sci-fi horror game where players run and are pursued, by futa monsters and more….
The Pilgrimage New Final Version 2.10 Full Game Messman

Between her adventures with famous commander Tali Zorah went to her pilgrimage to help quarian Flotilla. What can goes wrong? Seems like everything.
Haremwatch Juno Has Landed Final Version 1.0 Full Game Gachapen Games

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.
Light-Space Love Version 0.46 Added Android Port Halftilt

The game takes place in the year 8643. You play as Captain Linessa Star,
Commander of Repopulation Colony: Deep Six Nine.
Deep Six Nine is one colony in the galaxy among many that were founded by the Federation.
The Federation is responsible for assisting Xeno species that are in danger of extinction by helping them reproduce.
The Federation achieves this goal by utilizing genetic technology that allows members of the Federation,
to get impregnated by (or to impregnate) members of different species.
As Captain of Deep Six Nine, it is your duty to form bonds with other Xeno species,
and recruit their people into your colony to take part in its breeding efforts.
The story takes place after an incident that occurred with Captain Linessa Star in which she,
had unexpectedly returned from a year-long relationship-building mission with much of her memories erased.
Unsure of what happened to her, she wishes to discover who she is,
what happened to her, and how she can rebuild her colony which has fallen into disarray in her absence.
You will unlock different worlds to explore within the galaxy to visit in order to recruit Xenos,
into your colony and to uncover the mystery behind her lost memories.
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.
Succum Brewery New Version 0.3.4 LimeJuiceGames

After running out of money mid-transport Catherine is abandoned on the rooftop of downtown mega-skyscraper:
Peach Towers. She has no money, no friends, and no way to get to ground level.
To make matters worse the place is swarming with chuds.
A Crown of Thorns Final Version 1.30 Full Game Crested Crate Crew

A Cyberpunk visual novel in a post-Apocalyptic world that is a cross between Sin City and Blade Runner. Based on the IP of the 3-time award nominated feature film script entitled “Blade n Blood”.
This is a visual novel based on the IP of the 3 time award nominated feature film script entitled “Blade n Blood”– A Post Apocalyptic world that is a cross between Sin City and Blade Runner. It has been nominated 3 times for Best Sci Fi Feature Script at very large and respected film festivals. The film is currently being developed. This is the first of a trilogy of adult visual novels that take place about 25 years before the feature. It is the Story of Sebastian Luscious, the Great Grand Son of the Founder of the order of Jerusalem Knights and the victors of the War of Thorns. It is the road of his perdition and fall.
Written by Best selling Amazon Author of the post apocalyptic litrpg series Nocturne
The game graphically depicts sex, usage of drugs and violence. The story is not intended for players being in a dark period of their lives. If you are easily offended or just looking for a fun game only, this game is not for you.
All sexual acts in the game are consensual. – StormCrow Productions
Star Periphery Version 0.5.5 Added Android Port VoidPilgrim

A futadom/femdom retro sci-fi adventure game focused on atmosphere and immersion.
The setting’s main inspirations are cult classics like Fifth Element, Farscape, Space Truckers, Red Dwarf, Battletech, Syd Mead’s paintings, and other similar older sci-fi works. I am hoping to emulate that seedy, B-movie, lived-in atmosphere. Dirty and functional environments but still immersive and fun enough to live in. You can check the screenshots above and let me know if this goal of mine succeeded or not.
Or at least, this all applies to The Periphery, where most of Part 1 will be situated. What else is there waiting for you in this vast new universe? You’ll see!
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.
Hybridia New Version 0.4.56 Black Hood Games

As you take your final breath, the darkness descends upon you.
But just when you think it’s all over, a deity appears before you.
It’s none other than Aphrodite, offering you a chance to live again in a brand new world called Hybridia.
Who could resist such an alluring offer?
But as you awaken in your new body, you quickly realize that Aphrodite has not been entirely forthcoming with you. As her newly appointed Champion, you now possess an unusual power – the power of Lust. But that’s not all. You soon discover that you are not alone in this world, as other Champions from different deities are coming to challenge you. The reason why is unknown, and why you were chosen remains a mystery. And who the heck is Steve? The enigma only deepens.
The path ahead of you is full of obstacles and challenges, as you navigate the intricate world of Hybridia. Will you succumb to the temptation of your newfound power, or will you rise up and become the ultimate Champion? The choice is yours, but choose wisely. Your destiny awaits in Hybridia.
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.