Best Online Co-Op Games on Steam
Unlike generic lists, our strategy game recommendations use a rigorous analysis of Steam user reviews to identify and feature only the best, community-validated online co-op games.
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DRAGON BALL GEKISHIN SQUADRA
DRAGON BALL GEKISHIN SQUADRA is Dragon Ball's first team-oriented free to play game.
Firefighting Simulator: Ignite
Face unpredictable dangers, fight perilous fires with your crew, and save lives in Firefighting Simulator: Ignite. Step into the boots of a U.S. firefighter and play with up to 3 friends or with the help of your NPC controlled crew members.
NBA 2K26
Bragging rights are on the line in MyCAREER, MyTEAM, MyNBA, The W, and Play Now. Showcase your bag of moves with hyper realism, Powered by ProPLAY™, and challenge your friends, or rivals, in NBA 2K26’s competitive modes—and leave no doubt that you wear the crown.
Warhammer 40,000: Dawn of War - Definitive Edition
Warhammer 40,000: Dawn of War - Definitive Edition is the ultimate Dawn of War experience, featuring the original Dawn of War and all its expansions, along with enhanced visuals, an improved camera, and 64-bit platform support.
BACKROOMS: APPREHENSION
A terrifying multiplayer horror experience with social deduction elements. Trapped in the Backrooms, up to 12 players must try to work together to survive and expose the shapeshifting Skin Stealer hiding among them before it’s too late. Who will you trust?
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.
Whisper Mountain Outbreak
Escape room meets co-op survival horror. The year is 1998, and an ancient curse has been unleashed, trapping everyone on Mount Bisik. Alone or with up to 4 players, you must explore, find clues, figure out a way to escape...and survive the horror.
Iron Core: Mech Survivor
100 years after a nuclear apocalypse, an AI-managed shelter and its guardian mechs await human survivors. The shelter’s reactor creates safe zones to improve living conditions. Players control mechs to gather reactor fuel, fend off mutants, complete missions, and protect survivors.
Bang Bang Barrage
Survive the treacherous sea in this quirky multiplayer shooter game! Play solo or team up and fight off Cthulhu's minions. Master a unique recoil-based mechanic to blast enemies and chart your course. Mix and match upgrades to craft the perfect sea-surviving strategy!
GUNTOUCHABLES
Guntouchables is an online co-op doomsday roguelite for 1-4 players. You play as a gun-toting group of 'preppers' trying to reclaim the world from an ever-evolving horde of mutants, constantly working to develop new unique ways to kill you.
ERA ONE
Era One is an innovative space game that combines elements of real-time strategy, base building, space survival, and tactical battles. Players can create and customize their bases from scratch, construct various types of structures and warships, manage fleets, and engage in tactical space battles.
A Few Quick Matches
A FEW QUICK MATCHES is a fast-paced, 1-4 player platform fighter that lets you bring old-school stick battles to life! play with your friends locally, or challenge players online in this flash-inspired spectacle!
Demon Slayer -Kimetsu no Yaiba- The Hinokami Chronicles 2
Destroy demons with the power of forged bonds! Tanjiro Kamado's battle will once again unfold…
Gatekeeper
Gatekeeper is a fast-paced rogue-like. Go on a quest to chase down Chaos and reclaim the stolen Heart of Time, fighting your way through relentless enemy forces. Play solo or in 4-player co-op and become the next Gatekeeper!
Titan Quest II
Nemesis, Goddess of Retribution, is out of control. She is corrupting the Threads of Fate and punishing all those who oppose her. Take up your weapon, fight alongside gods, and change fate itself in Titan Quest II, an action RPG inspired by Greek mythology.
Whimsical Artefacts
A co-op friendslop game with a heavy focus on customization via drawing. Scavenge liminal bunkers and obtain artefacts that may or may not aid you and your friends.
Frosthaven
From the creative mind of Isaac Childres, the highly acclaimed board game moves to the digital realm in the video game adaptation of FROSTHAVEN! The dark fantasy tactical RPG features deep mechanics and challenging yet satisfying gameplay both in Single Player and Co-Op Online Multiplayer.
Bum: Revenge
First-person homeless crime sandbox. Steal, drink, hallucinate and crush rival bums in chaotic online co-op.
Mecharashi
Mecharashi is a mecha-themed tactical turn-based game. The game adopts a unique part-destruction combat system, where you can assemble mechas however you want, equip a wide selection of weapons, and choose your favorite pilots to engage in battle.
A World of Keflings
Keflings may be small, but their kingdom-building adventures are gigantic! Build a world with your friends in A World of Keflings! Harvest resources, construct robots, befriend a dragon, and help a creepy witch get even creepier in this update of the classic 2010 city-building adventure.