Sci-fi Games
Discover 18158 sci-fi-tagged games on Steam. Find the best games with this tag.
Total Games
18,158
Avg Monthly
185
Avg Revenue
$154.1K
Games with Sci-fi
Explore 18158 games tagged with sci-fi
Geometry Missile
Navigate through sharp edges to reach the end and score as high as you can.
EchoLink: Recursion
Hack through time in this cyberpunk incremental simulation. From 1990s dial-up to 2150s megacities, infiltrate networks, build proxy chains, and automate hacking routines. Every system reset lets you reboot with exponential upgrades. Grow processing power, optimize your scripts, and rewrite history.
Hamdy: a Roguelike Farm Mayhem
The farm is under attack! Fight against an alien invasion as Hamdy, an armed scarecrow. In this top-down arena roguelike, build your loadout with up to 6 weapons, grow stronger after each wave, and survive until the very end.
RebelZ
Join the RebelZ and experience intense, action-driven single-player FPS gameplay. Stand against a powerful AI empire and protect the last surviving groups of humanity in a world on the brink of extinction.
The Unfinished Melody: Prologue
Some things can never be made whole, and some melodies are never meant to be played. Pursue a lost song, unspoken feelings, and precious memories as you step into a mysterious fantasy world of light, shadow, and dreamlike adventure.
System Status: SuperCritical
Defend your base by placing towers strategically, forming interconnected systems that depend on one and another. Adapt your strategy to different environments and enemy waves, exploiting their weaknesses. In System Status: SuperCritical, resources are scarce and critical failure is always an option.
Hold & Advance
2D action sandbox about exploring an underground world, crafting and tactically defending alien stations. Build turrets, combine modules and repel enemy waves to unlock powerful upgrades that radically change your playstyle.
Biomech Protocol
A man rescues you after a crash and takes you to a shelter, claiming the outside world is dangerous. But is it really?
ASEMA
Build a space factory. Mine, harvest, exploit. Manage logistics with railguns, ballistic payloads and gravity-bending haulers. Fight gravity with Focus, climb the tech tree. Expand and explore the solar system in this Newtonian automation sim. Everything is a potential resource - even the Locals.
DESCENT -100
A dark auto-battle roguelike where every layer forces a choice between power, sacrifice, and survival. Descend through 100 corrupted stages, face a boss every ten floors, and shape a build that can withstand the abyss waiting below.
Ionhaven: Battery Heist
A tactical extraction roguelike where every raid is a high-risk decision. Infiltrate hostile sectors, evade adaptive security, secure valuable tech, and extract before lockdown hits. Push deeper for bigger rewards, or escape before everything collapses.
The Specimen
The galaxy is infected. Cultivate an evolving micro-organism into a devastating bioweapon. Plot your course, craft the perfect build, and engage in tactical battles against an alien bacterial threat. Upgrade your specimen and push further in this retro terminal roguelite auto-battler.
Operation Moon Walker
This is a single-player 3D shooting action game set in a world of prosperity and chaos, starring Isaac, the commander of the United Nations special agency "Theseus."
Tactics Weaver
A unified turn-based and real-time battle system in a world with unstable gravity. Weave between combat types by exploiting weaknesses in gravity. Attacking measures nearby gravity.
Best Hero: Endless Run
Dash, jump, and slide through a fast-paced endless runner built for solo or co-op play. Team up in local split-screen, unleash Rage Mode, smash obstacles, and climb the global leaderboards with cloud-saved progress.
OverSpend -secret desire-
“Wishes Weave the Eternal Color of Chiyo” A Japanese-style action RPG with “mobile game–inspired” elements, featuring shikigami party building, character growth, and random events.
Prism Drift
Take control of a lone pilot in a hostile galaxy. In this incremental roguelike, every death is a lesson and every scrap of loot is progress. Battle through relentless waves of enemies, level up your skills, and return to base to turn your scavenged parts into ship upgrades.
Core Defense 2099
Core Defense 2099 is the best tower defense game for controllers. Swap heroes anytime, place buildings wherever you like, fight through endless waves—and bring your cute pets along for the ride.
UNDEFINED: ILS
Draw lines. Break rules. Let an AI judge your creativity. UNDEFINED: ILS is a short puzzle adventure. Draw freely on 100 visual puzzles. The AI replies “SOLVED” or “NOT SOLVED” with sharp, interesting explanations. Your style shapes 4 endings in ~1 hour. No hints, no timers. Pure creative freedom.
QDFracture
Fast-paced competitive FPS focused on precision, movement, and high-impact combat. Dominate intense online PvP battles or team up in cooperative modes against adaptive AI. Pure skill. Zero gimmicks.