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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Heroes of Hammerwatch
Heroes of Hammerwatch is a rogue-lite action-adventure. Explore and battle your way through procedurally generated levels on your own or with up to 3 friends.
Sword Art Online: Fatal Bullet
Experience an original story where you are the protagonist in the world of Gun Gale Online. Create your own avatar and explore devastated lands while experiencing exciting third person shooting in this action RPG.
Mount Your Friends 3D: A Hard Man is Good to Climb
Join in the great simulated sportslike experience of friend mounting! Assemble a team and climb your way to the top! Mount Your Friends 3D brings mounting to the third dimension, with the same classic innuendo that made you slightly uncomfortable back in the day.
Hacktag
Hacktag is a fast-paced two-player co-op stealth-game with unique asymmetric gameplay. Play as the stealth Agent in the field or as the virtually-infiltrated Hacker and work together to carry out espionage missions where nothing goes as expected!
We Were Here Too
As your final hour approaches, a large structure looms up in the distance, towering above the relentless storm. Discover the truth behind this dark castle in a communication-based, cooperative puzzle adventure.
Walking Zombie: Shooter
The Walking Zombie is a stationary FPS with an online co-op mode in a world full of zombies to kill. Buy and upgrade your weapons, kill all enemies in 200 levels and destroy mighty boss monsters before they eat you alive!
Full Metal Furies
From the creators of Rogue Legacy comes a "true-cooperative" action RPG. FULL METAL FURIES puts an emphasis on team play with a unique combat system where everyone is important. Play on the couch, alone or with friends, or make it an online party for up to four players!
Wauies - The Pet Shop Game
In the tycoon game "Wauies – The Pet Shop Game," you run your own pet store. Prove your managerial skills, build pens, take care of cats, dogs, rodents and fish, fulfill your customers' wishes and expand your pet store. Play now!
SCP: Secret Laboratory
Deep within a secure underground facility, a sudden containment breach allows many of the secured anomalies to escape from their chambers. Assist the Foundation in re-securing the facility, help the Insurgency in their goal to capture it, or wreak havoc as an SCP in a frantic bid to escape.
War Planet Online: Global Conquest
Build your army, dominate your region and lead your alliance to conquer the globe!
Bit Heroes Quest
Collect and craft thousands of pieces of loot to increase your power. Build your team by capturing monsters and bosses to fight at your side in old school, turn-based combat. Prove you’re the mightiest hero in the land by competing in the PvP arena, Raids, and weekly events for awesome prizes!
Nine Parchments
Nine Parchments is a co-operative blast'em up game of magic mayhem from Frozenbyte, creators of the Trine series!
Injustice™ 2
Build and power up the ultimate version of your favourite DC legends in INJUSTICE 2. This is your Legend. Your Journey. Your Injustice.
CarX Drift Racing Online
CarX Drift Racing Online is your chance to immerse yourself in the real world of drifting. Get together with friends, tune your car and burn some tires!
Armored Warfare
Wage war against players from around the world with an unstoppable arsenal of 300+ powerful armored combat vehicles. Compete in PvP tank combat, complete co-op missions, and crush your enemies on breathtaking maps, from scorching deserts to neon-drenched urban jungles.
Yu-Gi-Oh! Duel Links
Take on Duelists around the world with "Yu-Gi-Oh! Duel Links"! Step into a world that crosses dimensions and connects all Duelists. In Duel World, any location transforms into a Duel Field where heated Duels unfold!
World of Warships
Immerse yourself in thrilling naval battles and assemble an armada of over 600 ships from the first half of the 20th century — from stealthy destroyers to gigantic battleships. Change the look of your ship, choose upgrades to suit your play style, and go into battle with other players!
Warspear Online
Create your hero and dive into an epic 2D MMORPG! Explore a vast open world, conquer castles, battle in free-for-all PvP, team up in guilds, join Alliance wars, explore dungeons, and celebrate with fun in-game events!
EMERGENCY 20
Coordinate your team of first responders in the anniversary edition of EMERGENCY! Featuring 10 remastered classic EMERGENCY missions and three full campaigns, EMERGENCY 20 is the complete package for both experienced and new rescue commanders!
Codename CURE
Codename CURE is a first person, co-operative zombie game with support for up to five players, providing dynamic, fast-paced zombie fragging with both objective, and survival-based missions.
