1,793 Action · Online co-op games your group can play together online, including Plains of Pain, Backrooms Society, and Snowbreak: Containment Zone.
All games: 24
Enter a living post-apocalyptic sandbox where the world doesn't wait for you. Build, craft, trade, earn the trust of factions, and forge your own path through a brutal procedural wasteland.
Backrooms Society is a 1-8 player co-op horror game. Make your way through unique levels of the backrooms while trying to survive and avoid mysterious entities. Scavenge each level for gear and resources, bring it back to The Hub where you can sell valuables and buy/craft new gear.
The new 3D Waifu Sci-Fi RPG Shooter is here! Aim at fate, fight by our side! Clear the specified stage to claim an Orange-Tier Operative!
It’s 1968 in Vietnam, the time to “Make War Not Love”. Side with the Viet Cong or U.S. Army in this intense, fast-paced FPS set in the Vietnam War — now with co-op zombie mode. Choose from 300+ weapons of destruction. Kill or be killed!
Defend the fortified beaches of Pacific against invading forces in this WW2 FPS game as the enemy attacks you with troops, tanks, planes and more! Play on your on own or COOP while using iconic Japanese and American WWII weapons and prepare your defenses with mines, explosives, and more!
Silica blends FPS and RTS in epic, photorealistic battles. Choose to fight on the ground or command from above as humans or aliens. Dive into thrilling multiplayer combat or master strategic command. Are you ready to survive and conquer?
Experience a festival of fandom like never before in Funko Fusion! Play through iconic worlds and mashup characters inspired by some of your favorite franchises in an action-adventure game with uniquely authentic, irreverent humor from the creative minds of 10:10 Games.
Operation: Harsh Doorstop is the ultimate, free to play, tactical shooter sandbox. Play singleplayer, multiplayer, or co-op modes and explore thousands of community-created maps, weapons, and vehicles via the Steam Workshop. Created by developers of the cancelled Project Reality 2 project.
A deliciously addictive core of finger-blistering shooting action, surrounded by delectable morsels of galactic exploration, spacecraft customization, and community competitions.
Lady Tallowmere's kittens have been acting strange. Still, the dungeon's rituals must be carried out. Despite the unusual circumstances, how many rooms can you clear?
BREAK THE CYCLE Fight to survive as this award-winning third-person shooter brings Selene’s story to PC. Take on roguelike challenges. Engage enemies in bullet hell-fuelled clashes. Share your journey through Returnal™ with another player.
Ghost Recon Breakpoint is a tactical third-person shooter set in a vast open world. You must survive, adapt, and fight a rogue spec ops faction, using stealth, strategy, and high-tech gear in solo or co-op.
Horror hide-and-seek for up to 6 players. One of you is the killer in a haunted castle — Reaper, Vampire, Scarecrow, and more. The rest sneak, finish tasks, and escape. Die, and come back as a Ghost.
STALZONE is the PvPvE extraction shooter where you don't have to start over — and the only one with persistent world worth belonging to. You are invited to explore the Chernobyl Exclusion Zone twisted by anomalies and divided between rival factions whose territories shape the danger around you
Spiders with laser swords! Duel to the death against your friends or choose to team up and hold back swarms of savage enemies. Swing, stab and shoot with style, effortlessly performing movie-worthy parkour.
Exoprimal is an online, team-based action game that pits humanity's cutting-edge exosuit technology against history's most ferocious beasts – dinosaurs.
Explosions. Tanks. Bosses. And more explosions. Crazy fun with your friends. Hundreds of maps. Boom.
Battle Talent is a challenging physics-based rogue-lite sword-fighting game, and now includes multiplayer mode, team up with friends to defeat enemies! You can create your own fighting style in a mega seamless procedural dungeon. With over 80 enemy variants, 100 weapons, and 60 perks.
Prepare the perfect heist in a fully destructible, simulated voxel world. Tear down walls with vehicles or use explosives to create your own shortcuts. Shape the environment to your advantage in the most creative ways you can imagine. Play solo or with up to 12 players in multiplayer.
Tactical Assault VR is an intense tactical shooter where you use real-world CQB (Close Quarters Battles) tactics to stack up, breach doors and eliminate threats. Play solo or join an online co-op special forces unit in missions around the world.
Microvolts Recharged is a quirky lobby-based third-person shooter with a unique toy theme. The game features a fun character cast and freely swappable 7 weapon types. Battle it out across dozens of large well-designed maps and frag your enemies!
Take back the city of Tertium from hordes of bloodthirsty foes in this intense and brutal action shooter. Warhammer 40,000: Darktide is the new co-op focused experience from the award-winning team behind the Vermintide series. As Tertium falls, Rejects Will Rise.
Moving Out is back and wackier than ever, and now with ONLINE PLAY! Return to Packmore and use your moving skills across brand new dimensions and some old favourites. Help rebuild Smooth Moves and become an all-star F.A.R.T. (Furniture Arrangement & Relocation Technician)!
Ship of Fools is a seafaring cooperative roguelite. Set sail, man the cannons and battle sea monsters through the tempestuous seas of the Archipelago. Are you fool enough to stop the Aquapocalypse?