Sci-fi Games
Discover 17597 sci-fi-tagged games on Steam. Find the best games with this tag.
Games with Sci-fi
Explore 17597 games tagged with sci-fi
0Awakewood
After your mother’s strange funeral, a black rain blocks the roads and leaves you stranded. The air smells like rotting fruit and nature begins to mutate. Can you get out of here before the forest finds you?
0Delegatory
A "round-based" incremental game about climbing the ranks within a dystopian retro-future corporation. Delegate tasks to your increasingly underpaid team of interns. Leverage a large branching skill tree to upgrade your team's efficiencies, and unlock unique powers.
0RAM Clicker
RAM Clicker is an idle clicker game where you goal is to harness all the Memory you can to stop the RAM Crisis of 2026, before the evil AI overlords hog every last piece of RAM on earth. Fight Back!
0Cosmo Strike: Complete Edition
In the distant year of 2359, previously unknown alien forces have attacked Earth and its colonies. You are an agent on a special mission sent by the global senate to repel the attack and stop the alien forces.
0Topdeck Automat
The roguelike auto-battler where your deck prints itself! Supply a brave worker droid with synergistic blueprints to defend the planet against hordes of alien invaders. Combine hundreds of cards with custom upgrades and infinitely stackable modules to discover broken builds.
0Extinction Zone
EXTINCTION ZONE is a zombie themed combat action survival game with 2D pixel art environments, puzzles to solve and a conspiracy to unravel.
0Polydangerous
You are standing alone on a desolate, ore-rich planet. Enemies will start arriving any moment. What do you do? Polydangerous is a sci-fi tower defense game with a bullet heaven heart. Build and upgrade your base in a tough campaign and compete in global leaderboards and daily challenges.
0My Little Cosmos
My Little Cosmos is a light idle clicker game that runs quietly in the background. Keyboard input and mouse clicks from everyday computer use automatically drive the evolution of a universe, with inventory rewards dropping over time.
0RootKit
RootKit is a tactical hacking game set inside a corporate honeypot network. Track hostile hackers, infiltrate their systems, steal crypto and data, and eliminate them before they trace your connection.
0Fartimus!
Use your voice to defeat enemy wizards in this online PVP Spell Casting Duel!
0Space Thrusters
Space Thrusters is a physics puzzle game where you plan the perfect route through enemy ship vents. Guide a bomb through tight spaces to trigger satisfying, cinematic explosions! The stakes are high: you must visualize your exit before you enter. Unravel the secrets of space-one detonation at a time
0Aika: Heroes Of Old
Aika, a "gifted" fighter pilot, was able to escape her previoius employer. Throughout the game, Aika and players learn about the secrets behind rapid advancement of technology over recent years and about herself.
0Scorched Legacy
A roguelike artillery game inspired by the DOS classic. Aim, fire, upgrade, die, repeat.
0FlyHigh
Grapple across floating islands, fight dangerous enemies, and hunt powerful loot. Master risky movement, upgrade your stats, and race to the top to defeat the boss as fast as possible. Every run is a new challenge.
0A Few of Us: Operation Nightshade
Hack enemy defenses with your keyboard, deploy your squad, and upgrade your units to survive the AI assault, all from behind the screens in this tactical mash between typing game and tower defense.
0Sushi Sewers
A fast-paced cyberpunk bullet-heaven where neon chaos, dark power, and endless enemy swarms collide. Survive the waves, create the strongest builds, and become unstoppable.
0Remnant Generation: Prologue
Remnant Generation: Prologue is a first-person atmospheric horror set in a secret underground laboratory. An experiment with the Fourth Dimension went wrong. You are alone, cut off from support. The creature cannot be killed — only avoided as you explore and try to escape.
0洛希极限 Roche Limit
Roche Limit is a 2D pixel sci-fi action roguelite, blending high-speed aerial combat with ARPG builds. Choose a mecha-girl, build her skills on the battle, and face the cosmic legion. Between runs, bond with the girls for more skill possibles and stories. Prevent cataclysm before the moon falls.
0Portal Worlds
You crossed a portal to survive, but what will you become on the other side? Explore dangerous regions, recruit mecha maidens, craft gear, and fight endless waves of monsters and bosses in this epic Idle RPG. Play solo or with others, grow steadily, and see how strong you can become.
0Dash Bang Rift LLC
Take over your grandma's company Dash Bang Rift LLC in this high-stakes action roguelite/roguelike where you out-math the apocalypse. Experiment with volatile Rift Mod stacks to transform standard weapons into god-tier destruction before the rift overwhelms you. Finish your shift—or die trying.