Sci-fi
6323 gamesSteam releases tagged Sci-fi. Tags come from community voting on SteamSpy and reflect how players actually describe the game.
Tracked
6,270
Released (30d)
2
Upcoming
0
Median price (KRW)
6,500
In the last 30 days, 2 new sci-fi games released on Steam (10 over the last 90 days). 525 are listed as free-to-play.

Astrumis - Survive Together
Astrumis - Survive Together is an exclusively co-op horror game. One player controls a survivor on an abandoned spaceship and the other the ship itself. They must work together to survive against the mysterious monster.
26 May, 2025

SPACERIFT: Arcanum System
Space. Ships. Resources. Trading. Production. Combat. Mine ore, haul cargo, and find profitable trade routes. Buy and capture ships, build your fleet, construct stations, and develop your production. Start with your first ship. Build your empire!
17 Dec, 2020

Cybarian: The Time Travelling Warrior
Cybarian The Time Travelling Warrior is a classically inspired arcade action game, with a mixture of modern and retro gaming tropes.
9 Nov, 2018

Takara Cards
Takara Cards is a unique tactical deck-builder RPG about chasing space dragons in a sci-fi fantasy universe. Create your deck as you explore sectors, fighting your way in deep puzzly combat. Every decision you make affects your Ship and Character: Each new adventure offers new surprises!
17 Jan, 2025

Gunbot Diplomacy
Splatter slimes, massacre mutants, and assemble your perfect Gunbot! Survive hordes of enemies in this top-down shooter roguelite by customizing your weapons on the unique upgrade grid, and pick from a wide variety of build-defining modules and wacky base bots for a new experience every run.
13 May, 2025

The Crust
Build and automate a lunar colony that Earth depends on. Mine regolith, run conveyor-and-drone factories above and below the surface, manage colonists, trade with rival Earth factions — and play a story campaign with multiple endings.
15 Jul, 2024

SUPERVERSE
SUPERVERSE is a fast-paced, action-packed space shooter that launches you into an ancient network of interconnected universes. Your mission: travel back through space-time and prevent the extinction of humanity.
11 Dec, 2025

Winion Virus
Winion Virus is a pixel-art visual novel horror game. It features adorable and charming graphics paired with a dark fairy-tale story full of unexpected twists. As a point-and-click adventure, your task is to fix the errors occurring within the computer.
26 Dec, 2024

Solar Nations 2
In this Grand Strategy game, you take control of the Solar System's Great Powers in 2092 and weather the storm of change as you navigate the uncertain waters of the future. Control the greatest military forces in the world and wage wars on an epic scale: outer space is yours to conquer!
31 Jan, 2025

Nucleares
Nuclear Reactor Simulator: Take Control. Prevent Disaster. Power the World.
13 Mar, 2023

Eigengrau
A twist at every turn! Explore a colorful shoot 'em up with varied and diverse gameplay beyond the familiar shooting and dodging. Every situation, every enemy, and every boss offers a different handcrafted experience.
5 Jun, 2023

Last Horizon
Pilot the last vessel of a fallen civilization into the vast expanse of space. Collect resources and search for a new world to call home in this minimalist space exploration and survival game.
18 Nov, 2015

RUINER
RUINER is a brutal action shooter set in the year 2091 in the cyber metropolis Rengkok. A wired psychopath lashes out against a corrupt system to uncover the truth and retrieve his kidnapped brother under the guidance of a secretive hacker friend.
26 Sep, 2017

GTTOD
RISE. FALL. REPEAT. Ascend to the level of the Gods as you battle your way out of a shattered and chaotic dimension in this fast paced parkour FPS rogue-like.
27 Oct, 2017

Station Zeta
Run, jump, shoot, and think your way to safety in this retro-inspired 2D puzzle-platformer. Station Zeta is out of control, and you'll have to deal with crazed robots, terribly designed station machinery, and blatant safety hazards as you try to make your escape across 35 levels.
16 Jul, 2024

S.T.A.L.K.E.R. 2: Heart of Chornobyl
Enter the Chornobyl Anomalous Zone — a vast open world where anomalies, mutants, and rivals stand in your way. Explore, scavenge, and try to survive in this brutal and dangerous land. Evolving with every update, now overhauled and crowned with UPDATE 2.0.
20 Nov, 2024

Galaxy Admirals
Galaxy Admirals is a multiplayer turn-based cosmic strategy with pretty innovative and challenging gameplay. Improve your command skills with AI and conquer the whole universe by fighting with real players.
17 Jan, 2017

RoundZ
RoundZ is a solo-developed round-based survival zombie game, with each round becoming progressively harder as the zombies get more health and in bigger waves.
10 Oct, 2025

Brotato
Brotato is a top-down arena shooter roguelite where you play a potato wielding up to 6 weapons at a time to fight off hordes of aliens. Choose from a variety of traits and items to create unique builds and survive until help arrives.
23 Jun, 2023

No Man's Sky
No Man's Sky is a game about exploration and survival in an infinite procedurally generated universe.
12 Aug, 2016

WiP
無機質で大きな腕を持つ主人公を操り、最奥に待つボスのもとへと向かう2Dアクションゲーム!目指せハイスコア!
20 May, 2020

The Dandelion Girl: Don't You Remember Me?
A short visual novel about a middle-aged man on his summer vacation, where he meets a strange girl who claims to be from the future. Adapted from a short story.
11 Jul, 2019

InMind VR
Shrink down for a brief, free arcade journey inside the human brain. Follow a guided route through glowing neural landscapes, aim with your gaze, and clear targets to improve your score. Play in VR or on a regular screen.
19 Jan, 2015

InMind 2 VR
Aim at colored neurons, influence emotions, and help shape a teenager's future. InMind 2 combines arcade targeting with a branching story about John growing up, with 20 endings to discover. A science-inspired adventure, playable with or without VR.
17 Feb, 2017

InCell VR
Race inside a human cell in this free arcade adventure. Dodge obstacles, collect proteins and speed boosts, and choose your route between organelles to reach the nucleus before a virus does. Steer with your head in VR, or play on a regular screen.
3 Sep, 2015

The B.L.O.O.M Initiative
A fast-paced top-down shooter where you harvest alien resources, grow living weapons, build battlefield defenses, and fight off alien birdmen and giant worms solo or in split-screen co-op
16 Sep, 2025

Aim Academy
Pure aim training! Sharpen flicks, tracking, reaction time and muscle memory in short focused trials, build your own with the in-game editor, publish them for other players, and see where you stand on the global rankings.
22 Jan, 2021

Ostranauts
Navigate your scrappy ship through the boneyard in search of valuable parts in abandoned vessels. Use salvage to upgrade your ship, or sell it for cash to pay down your mounting debt, or restock fuel, air, or food. Fly and role-play aboard your dream spaceship in this hardcore noir space-sim.
3 Aug, 2026

Starship Troopers: Extermination
Starship Troopers: Extermination is a 16-player co-op FPS that puts you on the far-off frontlines of an all-out battle against the Bugs! Squad up, grab your rifle, and do your part as an elite Deep Space Vanguard Trooper to take back planets from the Arachnid threat!
10 Oct, 2024

Assault Suit Leynos 2 Saturn Tribute
Modify. Deploy. Dominate. The Ultimate Robot Action Reborn.
24 Apr, 2024

WolfFang SkullFang Saturn Tribute Boosted
The steel wolf running across the earth × the sonic corpse that buries its prey. DECO shooting game redeployed!
30 Oct, 2024

BATSUGUN Saturn Tribute Boosted
A PIONEER OF THE BULLET HELL GENRE BY TOAPLAN IS BACK!
24 May, 2023

Layer Section™ & Galactic Attack™ S-Tribute
Layer Section, the home console port of arcade game RayForce is back with new features and online ranking. Use the new lock-on laser function to defeat multiple enemies at once for a higher score in this gorgeous 2D vertical shooting game!
27 Apr, 2022

Guardian Force - Saturn Tribute
The Guardians, a secret society wielding the power of the Force, have readied their tanks and intend on crushing the aspirations of the Hammerbolt Empire!
9 Feb, 2022

Final Exerion
Call on CELLs, change your weapon, and shoot however you want!
22 Nov, 2023

One-inch Tactics
Turn the tide of the war with nuanced strategies in One-inch Tactics, introducing players to a unique turn-based strategy experience.
19 May, 2024

Robot Fury: Mech Combat Simulator
Robot Fury is a mech combat simulator where you can feel like a true robot warrior. Fight enemies with a powerful flamethrower, soar into battle with your jetpack, and finish off foes with precise machine gun headshots. Customize your mech and engage in exhilarating, epic battles!
3 Mar, 2025

Save The World
Aliens ask a broke young woman what's wrong with Earth... then start making everything she says come true. Shape humanity's future in a darkly comic sci-fi visual novel with consequential choices, four endings, conspiracy, and romance.
1 Jun, 2023

Starship Fighters: Space Combat Simulator
Pilot your starship in Starship Fighters, a realistic space combat simulator. Engage in intense battles, explore vast galaxies, and unleash destruction with an arsenal of powerful weapons in a universe teeming with enemies!
3 Mar, 2025

BLACKSHARD
BLACKSHARD is a first-person exploration game. Wander through a strange megastructure, the Labyrinth, to unravel its mysteries... Your behavior within the Labyrinth will define the outcome of your journey. What path will you choose to take?
2 Apr, 2025

Timeloop: Sink Again Beach
A non-linear first-person action adventure in a pirate setting. A single player time travel simulation game. Unusual gaming experience.Moving in space and time, the player must understand what is happening on the island and how the main character can move away from there.
16 Nov, 2022

Greedland
"Greedland” is a roguelike game mixed with survivor-like elements. It's reminiscent of Crimsonland and Vampire Survivors, and as the battle progresses your character will become a mobile arsenal of destruction!
15 Sep, 2025

SHOOPER NOVA
Craft Your Ultimate Circular Fortress! Dive into SHOOPER NOVA, where you choose props and components to build a unique fortress. Unlock combos to shape your strategy and battle style. Become an unstoppable barrage machine and obliterate waves of enemies from all directions!
2 Apr, 2025

Sweet Surrender VR
Sweet Surrender is a fast-paced roguelike VR shooter. Fight your way up a dystopian megatower, filled to the brim with tyrant machines hell-bent on destroying the last of humanity. Build your arsenal of weapons, upgrades, and explosives to take down the machine overlords.
30 Sep, 2021

Hope Trigger
A twisted ancient ruin. Lost memories. An experiment hidden beneath a world of fantasy. Enter the labyrinth, wield Original Sins and magic, face formidable foes, and uncover the buried history of the ruins—and who “you” truly are.
6 Sep, 2021

Rectitude
Rectitude, is a Sci-Fi visual novel that centers around Timothy, a renowned professor who creates a groundbreaking technology.
28 Sep, 2021

DOTFI
Do you have what it takes to defend what is yours? This is not a typical tower defense game where the troops do all the work. This is a hybrid FPS/TPS tower defense game which you take over the control to defend your island.
27 May, 2020

VRacer Hoverbike
VRACER HOVERBIKE is a fast-paced futuristic racing game in VR (any headset supporting OpenXR).
30 Jun, 2025

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.
9 Sep, 2024

Nexus - The Jupiter Incident
Ambitious megacorporations monopolize the conquest of space and the colonization of the solar system. At the very edge of the solar system, the companies make a discovery that will shift the technological advantage and upset the balance. And so a new conflict is born: "The Jupiter Incident."
3 Jul, 2007