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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Strinova
Strinova is an anime-style third-person tactical competitive shooter. Switch freely between three-dimensional and two-dimensional forms in this one-of-a-kind game that offers a unique tactical shooting system for an unparalleled experience.
Luma Island
Get ready to explore, farm, fish, mine, craft, and raise magical Lumas as you solve puzzles and embark on quests across Luma Island. Play solo, or team up with friends in 1-4 player online co-op. Choose relaxing Cozy, challenging Adventure, or epic Hero mode to match your mood and playstyle.
Finnish Cottage Simulator
Finnish Cottage Simulator is the ultimate cottage experience. Relax and enjoy the Finnish summer nature, go to the sauna, get drunk, grill food or play games with others!
Temtem: Swarm
Can you Survive the Swarm? Unlock mighty abilities and upgrades, find and collect Tems to evolve and become stronger, discover overpowered strategies, and battle massive bosses in this survivor-like bullet heaven! Play solo or online co-op with up to 3 players, building the wildest synergies.
Farming Simulator 25
Farming Simulator 25 invites you to join the rewarding farm life, single-handedly or cooperatively in multiplayer. This Farm is Your Farm!
In Sink: A Co-op Escape Adventure
Work together to solve puzzles and escape a desert island in this stylized multiplayer co-op adventure. Success requires more than just you and your partner thinking alike - you'll have to communicate and stay In Sink to overcome the challenges ahead.
Unrailed 2: Back on Track
The chaotic co-op railroad construction game is back! Team up with your friends to build a railroad through procedurally generated worlds with new biomes and bosses. Permanently upgrade your character and engine, even create your own levels - just don‘t let your train derail!
Atomic Picnic
Third-person bullet heaven meets explosive co-op action! Swing, dash, and blast through monster swarms while combining upgrades and discovering rare evolutions to create game-breaking builds of destruction.
Sengoku Dynasty
Sengoku Dynasty is the ultimate feudal Japan experience: build villages, grow your community, and shape the open world through combat or economy. The choice is yours alone - or that of up to 4 players in multiplayer co-op!
Techtonica
Techtonica is a first-person factory automation game with a gripping mystery about mining your way out from the depths of an alien planet. Explore bioluminescent caves, mold destructible terrain, construct a massive subterranean factory. Dig your way toward answers & discover the secrets of Calyx.
Planet Coaster 2
Build and customise thrilling roller coasters and incredible water slides, manage the ultimate theme park experience, and share your epic creations. Are you ready to ride the wave?
IfSunSets
「IfSunSets」 is a survival RPG adventure game. During the day, secure necessary supplies across the island, and survive the night against strong and terrifying monsters that track you down. You can utilize resources you've secured to build a base to fend off threatening monsters.
Super Mining Mechs
Build your own Super Mining Mech and explore the underground in search of new natural resources. Customize your mech with unlockable parts to dig deeper than ever - by yourself or with up to 7 friends in online co-op multiplayer! So, what are you waiting for? There’s mining to be done!
Carry The Glass
Team up as two quirky construction workers in this fun 2-player co-op platformer! Carry a fragile glass window through colorful levels filled with challenges. Communicate and coordinate to dodge obstacles and solve puzzles. Can you finish the job without breaking the glass?
Nuclear Nightmare
Venture forth as part of a specialized team of fellow players tasked with retrieving classified materials, evading the black goo virus, and the nightmarish entities it has spawned. With time running out before the US government initiates a devastating nuclear strike to contain the spreading menace.
Eden Crafters
Embark on a journey of survival, crafting, and automation in Eden Crafters, a solo and co-op open-world game that challenges you to turn a hostile planet into a habitable haven for humanity. Temper the climate, create a breathable atmosphere, and turn toxic lakes into water: shape a new world!
MechWarrior 5: Clans
In MECHWARRIOR 5: CLANS, players become new Smoke Jaguar pilots in the Clan Invasion of the Inner Sphere. Lead a five-mech "Star" squad across diverse planets, engaging in an expansive campaign with immersive gameplay and intricate combat. Customize BattleMechs and explore strategic options.
WEBFISHING
WEBFISHING a multiplayer chatroom-focused fishing game! Relax and fish (on the web!)
Starship Troopers: Extermination
Starship Troopers: Extermination is a 16-player co-op FPS that puts you on the far-off frontlines of an all-out battle against the Bugs! Squad up, grab your rifle, and do your part as an elite Deep Space Vanguard Trooper to take back planets from the Arachnid threat!
Old Market Simulator
Old Market Simulator is a 1-4 player co-op game where you manage your market by ordering goods, growing produce, raising animals, fishing, and crafting items in your workshop, while hiring employees and expanding your business.
Guardians of the Sanctree
You and allies, avian inhabitants of Sanctree City, build structures and production lines on the tree, crafting weapons to fend off subterranean insects. Defense is just the start—dig deeper, destroy nests, fortify new defenses against escalating threats for an impregnable stronghold.
SWORD ART ONLINE Fractured Daydream
Introducing the 2nd installment for the 10th anniversary of SWORD ART ONLINE! A total of 21 characters from the series join the battle beyond memory—a challenge taken on solo or with friends. Go beyond memory... and Switch!
Liar's Bar
Dive into this multiplayer online experience set in a sketchy bar where the games are as dangerous as the patrons. Join a table of 4 and test your skills in Liar's Dice and Liar's Deck, where lying and bluffing are key to victory. Ready for a night at Liar's Bar?
Axon TD: Uprising - Tower Defense
Axon TD lets you expand the map boundaries themselves. A huge arsenal of towers and a wide variety of enemies clash in a battlefield that grows to your whims. Engage in single, cooperative, and roguelite gameplay.