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. For those who prefer not to search, check out lists of the most played, top deals and best free to play Online Co-Op games on Steam.
Filters & Lists
Phantasy Star Online 2 New Genesis
Phantasy Star Online 2 New Genesis is a free-to-play action MMO. Join players around the world to explore the planet Halpha and fight in epic battles as ARKS Defenders! Unleash your imagination with our ultimate character creation experience and creative spaces to create your own phantasy.
Handy Harry's Haunted House Services
Team up with up to 8 friends online to explore the haunted, randomly generated depths of these dusty attics. Find and repair the objectives, flip the master switch and escape before the ghastly ghoul that lurks in the darkness catches up to you. Play through the career mode or explore free play!
Fight Crab
Welcome to Fight Crab.A new 3D action game where you take control of a crab, and fight off other giant enemy crabs.Physics allows for crabs to move powerfully and quickly in this hardcore battle arena.Freely control your pincers to use weapons and develop your own crab fighting style.
Skater XL - The Ultimate Skateboarding Game
Experience unparalleled board control and responsiveness while you skate iconic real-world skate spots. This is the evolution of skateboarding gameplay. With Independent Foot Control and unique physics-based gameplay, skate gamers finally have the expressive controls they have always dreamed of.
Wurm Online
A sandbox MMORPG that has pushed the boundaries on what it means to be open world and stood the test of time. Dig, mine, shape the world around you and make your lasting mark!
3on3 FreeStyle: Rebound
3on3 FreeStyle: Rebound allows players to work with their teammates to pull off rim-shaking slam dunks, awe-inspiring alley-oops, flashy no-look passes, and clutch outside shots which breaks the heart of the opposing team in competitive games filled with the joy and energy of street basketball.
SWORD ART ONLINE Alicization Lycoris
Enjoy seamless, action-packed real-time battles using a combination of sword skills, sacred arts, and your favorite SAO characters!
Ninja Kiwi Archive
Enjoy some of the best loved Flash games of the past in this awesome time capsule of over 60 Ninja Kiwi classics. Experience a piece of history and play the original Flash games that spawned the worldwide phenomenon of Bloons TD.
Gatewalkers (Alpha)
Gatewalkers is a cooperative action RPG game with survival elements, where players travel across different worlds in order to save their own. Explore procedurally generated worlds, face hostile inhabitants, face challenges like extreme weather conditions, toxic atmosphere, lack of water and more.
Mini Motor Racing X
Welcome to the world of Mini Motor Racing X! Strap yourself in, or strap on your VR headset, and jump into a nitro fueled world where little cars mean BIG fun!
Dead Space™ 3
Journey across space to the icy planet of Tau Volantis with Isaac Clarke and Sgt. John Carver to discover and destroy the source of the Necromorph outbreak.
Need for Speed™ Payback
Set in the underworld of Fortune Valley, you and your crew were divided by betrayal and reunited by revenge to take down The House, a nefarious cartel that rules the city’s casinos, criminals and cops. In this corrupt gambler’s paradise, the stakes are high and The House always wins.
Bad Guys at School
In Bad Guys at School you can play as students and revolt against school system by completing missions, or decide to become a teacher that must maintain order despite the violence and brutality in the school.
Unfortunate Spacemen
An online multiplayer game about shapeshifting deception and betrayal! As a hapless, brave spaceman employed by The Company you'll work diligently to defend and be rescued from failing outposts, but not everyone around you is who they claim to be...
Battlefield 4™
Embrace unrivaled destruction in Battlefield 4™. Revel in the glorious chaos of all-out war packed with rewarding, tactical challenges in an interactive environment.
STAR WARS™ Battlefront™ II
Be the hero in the ultimate STAR WARS™ battle fantasy with STAR WARS™ Battlefront™ II: Celebration Edition!
Mass Effect™ 3 N7 Digital Deluxe Edition (2012)
Earth is burning. The Reapers have taken over and other civilizations are falling like dominoes. Lead the final fight to save humanity and take back Earth from these terrifying machines, Commander Shepard.
STAR WARS™ Battlefront
The STAR WARS™ Battlefront™ Ultimate Edition includes the STAR WARS™ Battlefront™ Deluxe Edition as well as the STAR WARS™ Battlefront™ Season Pass.
Battlefield 3™
Enjoy total freedom to fight the way you want. Explore 29 massive multiplayer maps and use loads of vehicles, weapons, and gadgets to help you turn up the heat. Every second of battle gets you closer to unlocking tons of extras and moving up in the Ranks. So get in the action.
Unravel Two
When you cut ties to the past, new bonds form. Build relationships with other Yarnys in local co-op or as a single player, fostering friendship and support as you journey together.
Need for Speed™ Heat
Hustle by day and risk it all at night in Need for Speed™ Heat Deluxe Edition, a white-knuckle street racer, where the lines of the law fade as the sun starts to set.
Plants vs. Zombies: Battle for Neighborville™
Kick some grass in Plants vs. Zombies: Battle for Neighborville, the wackiest shooter yet!