522 Sci-fi Action games your group can play together online, including Infinity Wars: Animated Trading Card Game, Saints Row IV: Re-Elected, and StarMade.
All games: 24
Outplay your opponent with simultaneous turns and commander-driven deck-building in a fully free-to-play PvP experience. Build your deck from 1000+ cards across 8 unique factions, and face opponents on a truly level playing field. In Infinity Wars, skill is the only factor that determines victory!
Experience the insane antics of Saints Row IV. The Saints have gone from the Penthouse to the White House - but Earth has been invaded and it’s up to you to save it with an arsenal of superpowers and strange weapons, in the wildest open world game ever.
Build ships, stations, and factions with friends in StarMade’s online voxel sandbox. Create your own goals across a generated universe, with server-based co-op and PvP.
Awaken as an unstoppable warrior and battle alongside your friends in this story-driven free-to-play online action game
Signs of Life is a sci-fi survival sandbox platformer with a combination of procedurally generated and hand-crafted content. You'll explore mysterious locations, mine blocks for resources, and meet strange (and some familiar) creatures, some of which don't even want to kill you and eat your corpse.
Sanctum 2 combines tower-defense building and first-person shooting in an online campaign for up to four players. You and your friends protect oxygen-producing Cores through waves, character loadouts, and optional survival runs.
Gunpoint is a stealth puzzle game that lets you rewire its levels to trick people. You play a freelance spy who takes jobs from his clients to break into high security buildings and steal sensitive data.
Experience two unique adventures featuring both long-time heroes and new and returning villains as they battle for the fate of the world!
In PixelJunk™ Shooter, you must pilot your spacecraft through a range of cavernous environments in a bid to save the scientists trapped underground. Making your way through the game will rely on your keen sense of observation and the ability to manipulate your surroundings.
PlanetSide 2 is an all-out planetary war, where thousands of players battle as one across enormous continents. Utilize infantry, ground and air vehicles, and teamwork to destroy your enemies in this revolutionary first-person shooter on a massive scale.
Defend generators, buy upgrades between waves, and bring up to four friends into the original five-player co-op modes of ORION: Prelude.
A fast paced multiplayer shooter that pits aliens against humans in a strategic and action-packed struggle for survival!
A deep, tactical shoot'em up. With every takedown, you’ll earn cash and xp to upgrade your ship and unlock new abilities. Online and local co-op. Unique versus mode. Realistic physics and water simulation.
Multiplayer is designed for up to ten players, with online and LAN co-op or PvP modes; build empires together against AI rivals and choose from six factions and several match endings.
Join up to two friends for a 3v3 platforming MOBA, push through droid lanes, and break the rival team’s base in Awesomenauts.
Join The Mobile Trench Brigade and protect humanity from the evil Monovision menace!
Apogee Software and Interceptor Entertainment proudly present the rebirth of the cult-classic first-person shooter, “Rise of the Triad”. Bigger, better and more ludicrous than ever before.
Take on a colorful, weapon-packed FPS campaign with friends online or over LAN, then swap monster waves for versus play.
Blast through Serious Sam 3: BFE’s campaign with up to 16 online players or four people in local split-screen, against waves of monsters in Egypt.
Choose between different factions, with their own set of expendable soldiers, mechas, and weapons. Protect your brain, mine gold, and destroy the enemy cortex in his bunker complex!
Explore a floating island, fight through its caves, and take on Cave Story+ with one friend in local two-player co-op.
The "Perpetual Testing Initiative" has been expanded to allow you to design co-op puzzles for you and your friends!
LEGO Star Wars III: The Clone Wars will allow fans to explore endlessly and laugh their way through the Star Wars galaxy in the most humorous, accessible and action-packed LEGO game to date.
Take on a cryptic cyberpunk campaign with up to three friends, mixing firefights, hacking, psychic powers, and character builds.