Best Sci-fi Games 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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Net.Attack() - Code or Die!
CODE OR DIE! Hack enemy systems & survive the security response by engineering lethal bullet-heaven algorithms. Your brain power determines your firepower across 190+ programming nodes. Debug your failures. Optimize your code. Complete the heist. HACK THE PLANET!
John Carpenter's Toxic Commando
Pick a character and team up with three friends ‘cause it’s time to save the world. Experience intense FPS action as you obliterate hordes of terrifying monsters! You may not be on the best team of mercenaries, but you are… a Toxic Commando!
AETHUS
Explore a vast underground world to mine and craft hundreds of items while building up your modular Outpost on the surface, to prospect for gems, refine resources and farm hydroponic crops in this top-down sci-fi survival-crafter where the story always provides a reason to dig deeper.
Desynced
Desynced is a sci-fi strategy game with fully customizable units and behaviors. Gather, build, research, and explore the unknown. Alone or with friends, unveil the mystery of an AI on the edge of self-awareness and uncover the hidden truth in this blend of strategy, automation, and exploration.
MeteoriteFall
Let's use existence and freedom as stakes, block everything, and explore the ancient legends of the Fallen Star Village, digging out the truth buried in the long river of history.
Star Trek: Voyager - Across the Unknown
Star Trek: Voyager - Across the Unknown is a story-driven survival strategy game in which the fate of the iconic starship is in your hands. Take the helm, manage the ship and resources, and make difficult decisions. Will you be able to bring home the ship and its crew?
High On Life 2
An intergalactic conspiracy threatens the fate of humanity! Team up with a wide cast of talking alien guns as you shoot, stab, and skate your way through the exotic locales to take down the bad guys and save your favorite species (humans)!
Roadside Research
Roadside Research is a 1 to 4 player co-op gas station simulator. Except you’re aliens. And undercover. Do very human things like restocking shelves while preparing for the invasion. Just don’t get caught.
ROMEO IS A DEAD MAN
Paint the screen red and travel the cosmos in this bloodstained action adventure game! Witness the latest from Grasshopper Manufacture: the advent of ULTRA-VIOLENT SCIENCE FICTION!
Mewgenics
Build the ultimate cat army through tactical breeding and send them into deep, challenging turn-based adventures. Draft abilities, collect items, and manipulate genetics across generations in this roguelike tactics game from the creators of The Binding of Isaac and The End is Nigh.
MENACE
Lead a strike force against an alien threat in this turn-based tactical RPG from the developers of Battle Brothers. Answer distress calls across different worlds, train and equip infantry, deploy tanks and mechs, and plan and execute missions in detailed turn-based battles.
Nonentity Galaxy
Fight, Scavenge, Survive, and File Your Taxes. A grim yet hilarious space strategy roguelite where you must balance hull integrity against your company's relentless profit margins. Warning: Contains lethal doses of dark humor and corporate exploitation.
The Last Starship
The Last Starship is a 2D space construction game where you design and upgrade your starship. Choose your path: pirate hunter, miner, engineer, spacebus driver, and more, whilst exploring vibrant star systems. Enjoy a growing sandbox world, with regular free updates. Your cosmic adventure awaits!
R.I.P. - Reincarnation Insurance Program
Welcome to the Reincarnation Insurance Program! This top-down roguelite shooter blends Diablo-style looting with Survivor-like mayhem. Face screen-filling zombie tides, use Divine Tech to liquidate them into ash, and farm god-tier gear to forge your OP build.
The Gold River Project
The Gold River Project™ invites you and your friends on an open world camping trip gone wrong. Alone or together, you must explore, craft, build, and survive the increasingly harsh environments of the Pacific Northwest wilderness as you uncover the experiment trapping you inside.
Out of Action
A fast-paced PvP FPS built around skill-based movement and deep build crafting, with cinematic, high-intensity combat set in a brutal cyberpunk world inspired by 90s anime.
MIO: Memories in Orbit
Play as android MIO in this mesmerizing metroidvania where you explore the Vessel, an enormous technological ark overgrown with machines gone rogue. Uncover its secrets, enhance MIO's abilities, and save the spaceship and its residents from oblivion.
Factory Planner
Factory Planner is a card-based simulation/strategy game that lets you build a factory using cards. The main goal of the game is to make combinations with different cards so that each player can build different factories and feel the sandbox experience to the fullest.
Solargene
Take Command of a Space Corporation in the Sci-Fi Simulator Solargene! Manage personnel, design and develop colonies and orbital stations across the solar system! Mine resources, establish logistics, research cutting-edge technologies, trade, and complete missions
The Legend of Heroes: Trails beyond the Horizon
The future of an entire continent is at stake in this milestone entry in the Trails series! Explore the vast Calvard Republic with three different protagonists, nurture connections, and master powerful skills in both real-time and turn-based battles as you uncover the secrets at the core of Zemuria!
One Turn Kill
One Turn Kill is a PvE card game where card drawing and deck control are the keys to victory. Engage in battles limited to a single turn for an exhilarating, suspenseful experience.Join the protagonist in a pixel art wasteland to face off with the strongest of enemies and see what story awaits.
Feed the Reactor
An incremental unfolding game about feeding fuel into a reactor. Combine elements to produce energy, unlock exotic technologies and explore a strange galaxy.
StarRupture
StarRupture is a first-person open world base-building game with advanced combat and tons of exploration. Play alone or in a group on this sublime and ever-changing planet, extract and manage resources, create your complex industrial system and fight off hordes of alien monsters.
Terminator 2D: NO FATE
Experience the thrill of Terminator 2: Judgment Day with arcade action & pixel-perfect graphics! In this unique story blending iconic scenes from the movie with original scenarios and multiple endings, humanity’s fate is yours to decide.
Hail to the Rainbow
The story of a lonely young man named Ignat, who survives in the dangerous and gloomy world of post-apocalyptic cyberpunk. You have to face the trials of a new reality and plunge into the secrets of the surrounding chaos.
A.I.L.A
A.I.L.A is a first-person horror game set in a near-future filled with immersive technology. Play as the sole game tester for a revolutionary new fictional AI. Survive intense horror experiences that prey on your deepest fears as the lines between virtual and reality begin to blur…
Repel The Rifts
Repel the Rifts is a roguelite tower defense game where you lead a commander through an alien world, uncovering new terrain each wave, drafting powerful upgrades, and constructing defenses to hold back the chaos.
Asbury Pines
A grisly mystery in a small town unfolds across centuries through the stories of its residents. Orchestrate their work, grow resources, upgrade skills, and create automated production loops between past and future eras. All to uncover a sprawling secret embedded in the flow of time.
Girls' Frontline
As a Commander for Griffin & Kryuger PMC. Navigate faction power struggles, deploy forces strategically, and work to restore order in a war-torn world.
LOCKDOWN Protocol
A first person social deduction game, combining real time action and communication, playable up to 16 players. While most players will cooperate to complete objectives to ensure victory, a small portion of dissidents will try their best to stop them at all cost, without being caught.
Wall World 2
The adventure in the mysterious world of the Wall continues! Pilot your robospider into its depths, uncover lost artifacts and technologies, upgrade your exosuit and spider, and battle the horrors lurking in the dark. Unravel the mysteries buried in the depths of the Wall!
Million Depth
Craft original weapons and engage in strategic time-freezing battles as you dive into the million-floor deep underground world of this deep-diving action strategy game.
Goodnight Universe
From the creators of Before Your Eyes — You are Isaac, a 6-month-old baby, developing mysterious psychic powers. What you want most is to be loved and accepted by your family, but a secretive tech corporation wants you for their own.
Z.A.T.O. // I Love the World and Everything In It
USSR, 1986. A girl goes missing in the closed city of Vorkuta-5, yet not a soul seems to be concerned. Uncover the mystery behind her disappearance and transmit your signal to the universe.