Serious Sam HD turns Egypt into a co-op shooting gallery
Clear an arcade FPS campaign with up to 16 online players, or use Fusion 2017 for local split-screen with up to four on one display.
91% positive of 7,424 reviewsPlaying now: 60
Sci-fi Indie games to play together
388 Sci-fi Indie games your group can play together online, including Serious Sam HD: The First Encounter, Shatter, and AI War: Fleet Command.
All games: 24
Shatter
Shatter is a retro-inspired brick-breaking game that merges familiar action with unique twists and a modern crafted production approach.
95% positive of 663 reviewsPlaying now: 1$1.99
AI War: Fleet Command Turns Co-op Into a Galactic Campaign
Join up to seven friends in a long strategy campaign against two AI empires. Expansion helps your resistance, but destroying key enemy infrastructure can draw more attention.
84% positive of 992 reviewsPlaying now: 3$9.99
Dome Keeper
Defend against waves of alien monsters in this unique roguelike action miner. Dig for resources, collect useful gadgets, and upgrade equipment to increase odds of survival – just hurry back before your dome is destroyed!
92% positive of 19,291 reviewsPlaying now: 0$17.99
Predecessor
The tactical depth and iconic heroes of a hardcore MOBA meets the explosive verticality of a 5v5 3D shooter.
70% positive of 17,931 reviewsPlaying now: 0Free
Primal Carnage
A savage online shooter, where players do battle as man or beast in class-based deathmatches and a frantic escape mode. Unleash your inner dinosaur!
77% positive of 4,774 reviewsPlaying now: 0$4.99
Blade Symphony
Prove you are the world's greatest swordsman! Engage in tactical 1 vs. 1 sword fighting, 2 vs. 2, or sandbox FFA, or capture Control Points in a tactical slash-em-up.
65% positive of 4,680 reviewsPlaying now: 0Free
Polarity
Polarity takes it to the next level, demanding all of your wits and reflexes. Full-featured local co-op campaign.
77% positive of 3,676 reviewsPlaying now: 0$12.99
Killsquad
Hack and slash? Check. Twin-stick-shooter? Check. 4 player coop to slay hordes of aliens & bosses with your friends? Check. Skills, upgrades, weapons, gears, talismans and more to make you stronger? Check. Wake up, bounty hunter. We have a mission for you. Time to clean up the scum of the galaxy.
70% positive of 2,837 reviewsPlaying now: 0$29.99
HARDCORE MECHA
HARDCORE MECHA is a 2D platformer action focusing on a better handling. The Campaign mode offers rich gameplay and seamless in-game cut-scenes for an immersive experience. Choose your favorite mecha, experience the fast-paced hardcore competitive battle of steel in Multiplayer!
83% positive of 2,336 reviewsPlaying now: 0$19.99
Neon Abyss 2
Dive into the cybermyth roguelike chaos of Neon Abyss 2! Now featuring up to 4-player online co-op, more combat styles, and unlimited item synergies, every run delivers a dramatic, action-packed experience you won't forget.
69% positive of 2,286 reviewsPlaying now: 0$19.99
Raw Data
Built from the ground up for VR, Raw Data’s action gameplay, intuitive controls, challenging enemies, and sci-fi atmosphere will completely immerse you within the surreal world of Eden Corp. Go solo or team up and become the adrenaline-charged heroes of your own futuristic technothriller.
81% positive of 2,033 reviewsPlaying now: 0$39.99
Star Saviors
Saviors brings the best bullet hell experience you can find on Steam. Play through 18 challenging stages in this ultimate test of tactics and reflexes.
80% positive of 1,535 reviewsPlaying now: 0$1.99
Enemy On Board
Online (6v2) social deduction game that will ruin your friendships. 6 crew members, 2 murderous shape-shifting aliens. Trust No One.
69% positive of 1,529 reviewsPlaying now: 0Free
Eden Rising
Brace yourself for a brand new action-packed Open World. Explore a huge world to gather materials for gear and defenses. Use everything at your disposal to defend your bases and defeat hordes of hostile monsters. Play solo or up to 8-player online!
63% positive of 1,444 reviewsPlaying now: 0Free
From Space
From Space is a solo and co-op action-shooter for squads up to four players. Take on the challenge of liberating the earth from an alien infestation with your friends, using over-the-top weaponry in a post-apocalyptic world with awesomely stylized graphics. The apocalypse has never been so much fun!
66% positive of 1,427 reviewsPlaying now: 0$2.99
Vox Machinae
Strap yourself into the cockpit of a robot seven times taller than a Tyrannosaurus Rex and prepare to do battle in Vox Machinae: the ultimate giant robot combat action-simulator for both VR and standard screens.
86% positive of 1,183 reviewsPlaying now: 0$29.99
Stars End
Stars End is a sci-fi survival sandbox set on the wild frontier of a distant star system. Play solo or host your own server as you craft, build, and battle to survive in a galaxy shaped by danger, discovery, and your own grit.
62% positive of 1,132 reviewsPlaying now: 0$19.99
MOTHERGUNSHIP
MOTHERGUNSHIP is a bullet-hell FPS where you craft your own guns, fight gigantic bosses, and defeat a robotic alien armada that conquered Earth. Face off against overwhelming odds in brutal, non-stop combats where thinking on your feet is the only way to survive.
77% positive of 1,093 reviewsPlaying now: 0$24.99
The Deadly Tower of Monsters
Fire up your ray guns, crystal swords, and laser whips, and get ready for thrills and chills! With three incredible movie stars playing out decidedly B-level sci-fi exploits, Dick Starspeed, Scarlet Nova, and Robot will have you ready to jump off the side of the tower—right into adventure!
89% positive of 1,065 reviewsPlaying now: 0$14.99
Sketchy's Contract
A 1-8 player co-op sci-fi looter horror game that takes place on a mysterious asteroid belt where players must complete contracts by traveling to exotic planets to kill creatures, find loot, and/or farm planetary materials that they must return to an ominous figure named Sketchy.
82% positive of 1,027 reviewsPlaying now: 0$8.99
DEPLOYMENT
DEPLOYMENT is a fast-paced top-down arena shooter featuring five unique classes, randomly generated battlefields, tactical turret control, and intense multiplayer combat. Challenge real players or fight against AI bots in action-packed battles.
85% positive of 1,014 reviewsPlaying now: 0$11.99
Mighty Goose
Mighty Goose is a fast paced run & gun shooter starring a bounty hunter Goose. Use epic weapons and devastating war machines to battle against screen filling bosses and hordes of enemies!
85% positive of 964 reviewsPlaying now: 0$19.99
Pixel Privateers
Pixel Privateers is a Squad Based Tactical RPG “Loot ‘Em Up” that will send your team of mercenaries through a mysterious wormhole on a quest to gather technology for your employer. An entire galaxy awaits - full of worlds to explore, factions to encounter, and epic gear to collect!
71% positive of 812 reviewsPlaying now: 0$14.99