Sci-fi Hidden Gems on Steam
Unlike generic lists, our game recommendations use a rigorous analysis of Steam user reviews to identify and feature only the best, community-validated sci-fi games.
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Europa
On the moon Europa, a lush terraformed paradise in Jupiter’s shadow, an android named Zee sets out in search of answers. Run, glide and fly across the landscape, solve mysteries in the ruins of a fallen utopia, and discover the story of the last human alive.
Endoparasitic 2
Three limbs ripped off, infected with a deadly parasite, you must survive. Drag yourself through the hallways of an infested arcship, fight off twisted eldritch creatures, craft vaccines and ammunition, and escape to civilization.
Axon TD: Uprising - Tower Defense
Axon TD lets you expand the map boundaries themselves. A huge arsenal of towers and a wide variety of enemies clash in a battlefield that grows to your whims. Engage in single, cooperative, and roguelite gameplay.
ZERO PROTOCOL
In this immersive sci-fi thriller, you will experience the atmosphere of classic 3D games as you solve puzzles, follow an intriguing non-linear storyline, and engage in battles with monsters.
Breachway
Explore the galaxy in this deckbuilding, sci-fi roguelike where ship upgrades and crew management are key to your survival. Optimize resource generation, engage in intense turn-based battles, and take on ever-growing threats as you seek out The Signal.
Machinika: Atlas
Machinika: Atlas is an indie puzzle game and is the direct sequel to Machinika: Museum, you play as a museum researcher who just land on Atlas. Will you unravel the mysteries of the alien vessel? Solve cryptic puzzles to find out what happened!
Subside
Subside is an immersive aquatic VR experience with multiple areas to explore and lifelike aquatic creatures to interact with. Crafted with unparalleled realism, it aims to replicate the nuances of real-life swimming and diving in shallow waters
NanoApostle
NanoApostle is a dark sci-fi boss rush action game featuring intense reaction-based combat and the unique "Destruction Point" system. Play as Anita, a child augmented with lethal nanomachines, as she battles against twisted cybernetic experiments to escape a top-secret facility.
Wild Bastards
The spiritual successor to the award-winning game Void Bastards, Wild Bastards is a roguelike strategy shooter with heart-pounding FPS action, mod management, and a tactical campaign. Saddle up and lead the most notorious outlaws in the galaxy.
DeathSprint 66
Compete in a bloody fight to the finish in DEATHSPRINT 66, fusing high-speed on-foot racing with deadly obstacles and brutal abilities. Unleash your velocity, push limits, and claim glory like never before.
Utopia Must Fall
Defend humanity's last surviving metropolis from mysterious alien machinations in this challenging base-defense arcade shooter. Featuring rapid upgrade progression, procedurally generated attack waves, dark humor and laser-sharp aesthetics.
QANGA
QANGA: 750 years after humanity's fall, you must survive in a shattered world where Earth itself demands vengeance. Tear through the fabric of space to face the Voss, awaken the ancient civilisation, and dare to challenge the Sanglines, born from the bowels of a world that condemned you.
Akimbot
In the action-adventure platformer, Akimbot, blast your way through armies of robots, pilot spaceships and forge your own path to save the universe from impending doom! Set in a sci-fi world where only robots exist, travel the galaxy and experience non-stop robot mayhem and explosive action!
Feed the Deep
A lovecraftian roguelike. Dive into procedurally generated undersea caves. Collect gold, upgrade your equipment, and Feed the Deep.
Creatures of Ava
Let your empathy guide you as you play an exciting action-adventure, creature-saver game. Understand and tame the creatures of Ava and let them lead you through a variety of ecosystems – all in the hopes of saving the planet from a life-consuming infection.
Aero GPX
Aero GPX is an anti-gravity racer focused on high velocity, flight, machine-to-machine combat, and responsive controls that are easy to pick up but difficult to master. Fight for the best position possible with high speeds, risky maneuvers, and visceral attacks!
STAR WARS™: Bounty Hunter™
Bring In Your Bounty, Dead or Alive
No Creeps Were Harmed TD
Employ lethal turrets, traps, and gadgets to defend against an onslaught of evolving creeps! Step into a twisted, hyper 3D, mind bending realm. Upgrade and adapt your defenses. Become a master maze crafter. Collect bizarre artifacts. Rush creeps for lucrative rewards, and succumb to greed!
It was a human.
A short SF psychedelic interrogation ADV game that focuses on the interrogation of a suspect in a dismemberment murder case. The protagonist is a lieutenant colonel, tasked with interrogating the suspect. The protagonist needs to find out why she killed the two men and how she committed the crime.
Classic Marathon 2
From the team that brought you Aleph One, the classic sci-fi FPS Marathon 2: Durandal from Bungie on Mac revived for modern hardware by the fan community.
Ad Fundum
Take control of a giant mech and dive into an exciting underground adventure in a dieselpunk world! Dig deep, collect valuable minerals, upgrade wisely, explore diverse locations, uncover ancient secrets, and try not to explode! Will you save the world or vanish in the depths below?
Stellar Initiative
Stellar Initiative is a roguelike tower defense game where you land on the planet and use your orbit ship to deliver buildings and support you with fire. Complete missions, install new upgrades, discover powerful artifacts, and find the best strategy!
Doki Doki AI Interrogation
A short interrogation game taking full advantage of ChatGPT! You are tasked with interrogating the suspect [AI] of a murder case as an [excellent police officer]. How you choose to interrogate the suspect is up to you. How the AI reacts is rendered in real-time through ChatGPT.
Starstruck Vagabond
A space captain accidentally freezes themselves for two thousand years, finding themselves in an unfamiliar galaxy. Fortunately, there's always someone who needs cargo delivered.
DEVIL BLADE REBOOT
An immersive pseudo-3D shoot 'em up experience that pushes the limits of pixel art. Push your score higher with the innovative Berserk System: the closer they are, the more points you get!
Zet Zillions
Zet Zillions is a single-player roguelike deckbuilder where you use your cards to make freakish combinations and explode entire planets. BIG-BADDA-BOOM!
Galacticare
Build, manage and optimise intergalactic hospitals! Recruit staff to satisfy the whims of various alien species, and cure their bizarre illnesses - for money! Save the (literal) Galaxy in story mode, or head into sandbox to design the hospital of your dreams.
Mech Engineer
A dark sci-fi mech assembling manager with semi-auto battles against mutating, alien bio-weapon.
Little-Known Galaxy
Join Space Alliance as a new captain-in-training and work with your crew to solve the mysteries of an ancient relic found on the Grey Planet. Little-Known Galaxy is a cozy single-player RPG space adventure full of friendly characters, exploration, crafting, and farming.
Voyager-19
A short horror game where you control a decaying spacecraft exploring distant star systems.
Kanna Maze
In an isolated lab beneath the earth, a childhood friend is resurrected. Amidst sealed walls, a spree of killings unfolds. In a godless abyss, parallel worlds entwine like a maze. Where does one find the path to the sole universe of bliss?
Dream Engines: Nomad Cities
A survival city-building game with flying cities. Build, automate, and defend a flying city that travels between procedurally generated maps to survive in a wacky, nightmare-infested, post-apocalyptic world full of strange science and dreams.
Genome Guardian
COMBINE WEAPONS in the microscopic roguelite turret shooter with macroscopic depth. Survive 6 modes using an astounding array of turrets, perks, mutations and power-ups on this psychedelic journey to the heart of the abyss. Shmup Mode turns it into a vertical shoot 'em up!
Cozy Space Survivors
A cozy time survival roguelite in space. You steer the shippy while the shooting happens automatically. Meet cute NPCs, solve small quests, and fight quirky enemies with satisfying weapons. A shorter experience for people who don't have much time but love playing (and finishing) games.