Playing together can mean a story for two, a shared base or short team missions. This catalogue requires a confirmed co-op mode; multiplayer alone does not qualify a game.
Windows · base games · released or Early Access. Default order: Steam rating, then review count. Data is updated from catalogue sources.
Refine search filtersStep into a realistic first-person data center simulator. Diagnose faults, replace hardware, configure networks, and manage critical infrastructure. Training built to prep you for real Data Center Tech interviews.
Trek from Jiri to Everest Base Camp along the real trail, rebuilt from elevation data. Take work from lodge to lodge, talk your way through 300 mountain people, fight raiders in turn-based duels with timed blocks and parries, and survive the cold in a living world shared with other trekkers.
A retro arcade space shooter where you blast alien fleets, dodge bomb swarms, collect power-ups, and fight solo or in local co-op to liberate occupied planets from the mind-controlling energy force code-named Xenmega.
A voxel tower defense where every defender is a little soldier, not a turret. March through a 20-map campaign, rank eight defenders from militia to legends, and hold every road to the Queen — alone or in endless co-op. Battle your friends in an army style match.
Hippocratic Chaos is a chaotic co-op hospital game where teamwork is the best medicine. Treat patients, handle emergencies, manage supplies, and keep your hospital running with friends. Save lives, survive the shift, and try not to become the next patient!
Fire up the grill in this first-person yakiniku restaurant sim. Run it solo or with your friends in Career Mode, or compete directly against them as rival restaurants across the street in Rival Mode. Prep, serve, grill, restock, and build your restaurant into the pride of the shopping street!
Build and defend an island base in this isometric real-time strategy game. Keep your launchers fueled as incoming missiles threaten your buildings, then strike enemy islands with missiles or send in mechs to fight on the ground.
FLIR is a first-person gunship game played only through a low-resolution thermal sight. Fly an attack helicopter or gunship, lock targets at long range, and complete military missions solo or in 3-player co-op.
Blind Descent is an open-world survival adventure into the mysteries of the Martian depths. Play solo or with friends in 4-player co-op as you search for the missing team. Adapt to survive by building custom tools, upgrading your base, and/or mutating in this bizarre alien world.
All urban packs of dogs need an alpha, and when it comes to rule over parks, dogs have their own ways! Splat pee all around to claim territory or knock out your rivals using your crafted set of the craziest skills ever found in a battle arena.
Adventure with friends in this MMO-lite action RPG! Explore the shared online kingdom of Terracott as a knight-in-training. Team up to conquer dungeons, slay monsters, discover rare loot, and return home to forge powerful new gear before setting out on your next quest.
Fight alone or beside others trapped in the same nightmare. Survive waves of deranged cultists and grow your mischief of rats. The longer you stay, the more you can save, and the more you risk losing before reaching Traang, Milo’s Arcade.
A co-op delivery game where you play as tiny postal workers in a town that’s trying to kill you. Deliver everything from coffins to ticking bombs, escape rabid dogs and berserk drivers, and stay in business for six days to earn your pint on Sunday.
Uncover the fate of humanity's final outpost as you survive and explore a thrilling world of floating islands. Brave the skies on your own or assemble a squadron of friends, and scavenge scrap to engineer and upgrade flying vessels, bringing your airship along for the journey.
Hunt for monsters through creepy dungeons on your own or with a squad of up to four in this sci-fi horror-based shooter! Navigate treacherous traps and escape the planet once the job is done. Purchase various kinds of equipment to make sure you and your squad are ready! The Main HQ will be watching.
