AI Olympius
Join the rebels in a third-person shooter with RPG elements and base-building mode. Fight against various combat drone models under the control of the supreme AI.
89% positive of 228 reviewsPlaying now: 109$17.99
Post-apocalyptic · Sci-fi games to play together
45 Post-apocalyptic · Sci-fi games your group can play together online, including AI Olympius, ARC Raiders, and Blossom: The Seed of Life.
All games: 24
ARC Raiders
ARC Raiders is a multiplayer extraction adventure, set in a lethal future earth, ravaged by a mysterious mechanized threat known as ARC.
82% positive of 308,140 reviewsPlaying now: 30,113$39.99
Blossom: The Seed of Life
Terraform a dead planet back to life in this open world survival crafting game. Explore ruins, gather resources, print machines, drive modular vehicles, grow forests, biomes, and ecosystems. Create life and make it thrive with your own hands.
87% positive of 1,056 reviewsPlaying now: 28$16.99
R.E.P.O.
An online co-op horror game with up to 6 players. Locate valuable, fully physics-based objects and handle them with care as you retrieve and extract to satisfy your creator's desires.
96% positive of 346,703 reviewsPlaying now: 16,979$6.49
Deadzone: Rogue
Deadzone: Rogue is a roguelite FPS set in space. Blast through swarms of hostile machines, combine powerful augments and elements to forge your build, and grow stronger with each run — solo or in co-op.
82% positive of 15,301 reviewsPlaying now: 464$24.99
Nexus Legacy
Rebuild civilization from a single planet in Nexus Legacy, a persistent sci-fi 4X MMO. Colonize worlds, manage resources, research technologies, command fleets, forge alliances, and fight for control of a living galaxy.
65% positive of 381 reviewsPlaying now: 97Free
M.A.S.S. Builder
Commander, customize and build your Mechanical Assault Skeleton Suit (M.A.S.S.) and lead the fight against an alien invasion bent on exterminating the human race. The fate of humanity is in your hands.
84% positive of 3,737 reviewsPlaying now: 10$17.49
Forever Skies
In this first-person survival game, your high-tech airship is your home, lab, and lifeline. Build it your way and fly above a ruined Earth. Play solo or with up to 3 friends, crafting, salvaging what was left behind, and searching for a cure. Choose your journey, from calm to hardened survival.
76% positive of 8,207 reviewsPlaying now: 201$11.99
ZEPHON
From the developers of Warhammer 40,000: Gladius, ZEPHON is a post-apocalyptic 4X strategy game built on Proxy’s unique tactical combat system. Guide survivors through a turbulent future, navigating unexpected disasters, eldritch horror and cyberpunk monstrosities. What will you do to survive?
82% positive of 1,894 reviewsPlaying now: 83$39.99
Iron Meat
Iron Meat is a run-and-gun arcade shooter that immerses players in an apocalyptic future overrun by "The Meat," an iron-ravenous mass mutating everything in its path. Blast your way through retro-inspired stages and bosses to uncover the shocking horrors behind secret experiments on the Moon.
95% positive of 996 reviewsPlaying now: 2$15.99
Roboquest
Roboquest is a fast FPS Roguelite in a scorched futureworld. You're a rebooted Guardian, ready to kick some metal ass! Fight with your buddy or by yourself and annihilate hordes of deadly bots in ever-changing environments.
94% positive of 19,277 reviewsPlaying now: 179$16.99
The Forever Winter
The Forever Winter is a tactical shooter where you and your squad must loot the dead to survive beneath gargantuan war machines in a dystopian future of AI automata, cybernetically enhanced soldiers, and endless conflict. Millions of deaths later, the war continues with our latest update!
68% positive of 21,520 reviewsPlaying now: 113$14.99
Aground Zero
The world has ended. You are deep underground, and all alone with a cheery AI companion. You will have to mine and build to survive, and search for other survivors to help you. Will you be able to reach the surface? And what will you find when you get there?
79% positive of 123 reviewsPlaying now: 1$19.99
ARMORED CORE™ VI FIRES OF RUBICON™
A new action game based on the concept of the ARMORED CORE series that uses the knowledge gained from FromSoftware's recent action game development.
91% positive of 67,324 reviewsPlaying now: 978$59.99
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.
83% positive of 497 reviewsPlaying now: 2$19.99
Farlight 84
Hey Lightcatchers! Are you ready for massive 60-player shootouts? Enjoy fast-paced hero shooter action in Farlight 84!
75% positive of 55,666 reviewsPlaying now: 339Free
Outpost: Infinity Siege
Command Mobile Outpost and take XEN Firearm to venture deep into the Signet surveillance off-limit area. Collect unique Weapon Units. Amp up the firepower of the Outpost that fights with you. This is an FTD game - FPS, Tower Defense, Base Building and much more all at the same time.
64% positive of 11,673 reviewsPlaying now: 63$24.99
FRONT MISSION 1st: Remake
FRONT MISSION 1st: Remake is an immersive, tactical turn-based RPG, placing you in command of the awe-inspiring Wanzers – powerful military machines.
77% positive of 767 reviewsPlaying now: 50$34.99
Radiant Silvergun
Set on the earth and in space on July 14, 2520 A.D., the film explores the mystery of mankind's extinction. Various terrains become battlefields. Enemies attack from all directions. There are 23 bosses in total. Aim for a high score by making full use of score bonuses and level-up weapons!
93% positive of 217 reviewsPlaying now: 1$19.99
Pixel Starships
Pixel Starships is an FTL-style online sci-fi strategy builder and management game with a competitive PVP tournament. Set in the retro galaxy, your role is to explore space, meet aliens, and develop your ship, crew and AI. The game contains deep strategic and 4x elements. PSS is community-driven.
73% positive of 3,034 reviewsPlaying now: 129Free
Tower of Fantasy
Embark together on your fantasy adventure! Set hundreds of years in the future on the distant planet of Aida, the shared open-world RPG, anime-infused sci-fi adventure Tower of Fantasy now is officially available on Steam.
66% positive of 12,072 reviewsPlaying now: 196Free
UNSIGHTED
EXPLORE YOUR WAY. Awoken to a world ruined by war, Alma must traverse the vast city of Arcadia before the life force of her friends and herself withers away. Time is ticking, and every moment matters. Who will you save, and who will you leave to turn UNSIGHTED?
93% positive of 1,890 reviewsPlaying now: 5$19.99
I MAED A GAM3 W1TH Z0MB1ES 1N IT!!!1
A top down twin stick zombie slaying shooter that you are sure to play again and again!
96% positive of 1,859 reviewsPlaying now: 2Free
Wasteland 3
Following the critically acclaimed 2014 Game of the Year winner Wasteland 2, the RPG series that pioneered the post-apocalyptic genre in video games returns with Wasteland 3.
84% positive of 17,345 reviewsPlaying now: 265$39.99