
IN HARNESS is an online co-op 3D jumping game for 1–10 players. With simple move and jump controls, pets team up to clear tough stages and reunite with a girl in heaven, bringing the warm “Helper’s High” of saving friends.
60+ similar titles based on shared tags and player behavior. Themes include Multiplayer, Online Co-Op, Co-op, Casual.

IN HARNESS is an online co-op 3D jumping game for 1–10 players. With simple move and jump controls, pets team up to clear tough stages and reunite with a girl in heaven, bringing the warm “Helper’s High” of saving friends.

I Buried Steve
A chaotic beach party game where you build the level as you play. Place devious hidden traps to sabotage your friends, without accidentally sabotaging yourself.

Until We Fly
Team up as tiny caterpillars in an online co-op escape adventure for up to 8 players. Rescue fallen friends, overcome treacherous paths, and clear each stage by getting at least one teammate across the finish line. Build and share your own challenges through the Steam Workshop.
A chaotic beach party game where you build the level as you play. Place devious hidden traps to sabotage your friends, without accidentally sabotaging yourself.
Why similar: Runner 28.1%, Online Co-Op 24%, Co-op 17.6%, Multiplayer 12.5%, Level Editor 7.9%
Team up as tiny caterpillars in an online co-op escape adventure for up to 8 players. Rescue fallen friends, overcome treacherous paths, and clear each stage by getting at least one teammate across the finish line. Build and share your own challenges through the Steam Workshop.
Why similar: Runner 35.2%, Online Co-Op 14.7%, Sandbox 14.6%, Co-op 13.9%, Casual 9.5%
A failed experiment has caused your heads to get swapped!? Control your buddy’s body from your own point of view in this unique 3D platform action game for two players,. Your bond with your buddy will be put to the ultimate test!?
Why similar: Runner 31.4%, Online Co-Op 24.4%, 3D Platformer 18.3%, Co-op 12.6%, Multiplayer 7.2%
Breaking Box is a 3D multiplayer game with a level editor in-game. You can create your own levels, challenge levels, and enjoy the competition with friends!
Why similar: Level Editor 22.2%, Co-op 18.1%, Online Co-Op 15.3%, 3D Platformer 13.1%, Multiplayer 9.5%
A puzzle platformer where little cubes find the way out. Play solo or with friends, build your own maps, and see how your run stacks out.
Why similar: Online Co-Op 21.8%, Level Editor 20.8%, Runner 19%, Multiplayer 10.5%, 3D Platformer 10.3%
WASD : The Adventure of tori is an online co-op game for 2–4 players, where each player can only use their automatically assigned key (W, A, S, or D). Even a small mistake can make the team fail, so talk with your teammates and work together! You’ll learn the rest by crashing into it… a lot.
Why similar: Online Co-Op 38.3%, Co-op 29.2%, Multiplayer 17.3%, Runner 7.8%, Casual 4.6%
STEAL THE PIG! is a cooperative game where two thieves must steal a stubborn pig and deliver it safely while overcoming traps and puzzles. Play with a friend in multiplayer, choose your difficulty level, and make sure the pig doesn’t escape!
Why similar: Co-op 24%, Online Co-Op 20.2%, Runner 16.7%, 3D Platformer 12.9%, Multiplayer 10.4%
Two-player cooperation, kaiju pulling action!
Why similar: Online Co-Op 27.4%, Co-op 23.6%, 3D Platformer 14.9%, Multiplayer 14.9%, Action 5.5%
Press the button. Something horrible happens. Last player standing wins. 2–8 players. Zero rules. Pure chaos.
Why similar: Online Co-Op 23.5%, Runner 16.3%, Beat 'em up 15.5%, Co-op 13.5%, Multiplayer 11.7%
How about a race against time? Create new worlds and race against the whole world with your friends!
Why similar: Level Editor 24.4%, Online Co-Op 21.5%, Runner 17.8%, 3D Platformer 15.6%, Multiplayer 9.2%
Team up with friends in this top-down stealth-runner game to get to Rock n' Roll paradise. Use grit, abilities, and your friends to make it through the hordes of enemies.
Why similar: Runner 31.7%, Online Co-Op 29.9%, Co-op 15.8%, Multiplayer 13.2%, Casual 5.1%
An addictive escape game in a low poly style. You will face waves of enemies and lots of obstacles that will try to stop you from reaching the the end. As you progress the difficulty increases. Choose between several maps with different terrain and obstacles. Play alone or with up to 12 friends.
Why similar: Runner 30%, Online Co-Op 22%, Co-op 15.5%, 3D Platformer 14.7%, Multiplayer 9.6%
Chained Together Crossing is a Co-op game where you and up to 4 friends are handcuffed and have to get to the other side of the street. Levels get progressively more difficult, and sanity will be lost.
Why similar: Online Co-Op 31.6%, Co-op 22%, Runner 21.9%, 3D Platformer 13.8%, Action 6.4%
Overcome the trials by relying on your partner's sights! A 3D co-op game that goes beyond common sense. Enjoy unique gameplay based on sights in I See Me.
Why similar: Online Co-Op 40.5%, Co-op 25.1%, Multiplayer 17.3%, 3D Platformer 13.1%, Indie 2.1%
Ready, Set, Rumble! Join Sonic in this intense arcade royale game set in Dr. Eggman's diabolical Toy World. Collect legendary skins, all-new emotes, and build skills as you progress through this action-packed game! Mayhem is best with friends!
Why similar: Runner 33.8%, Online Co-Op 20.5%, Co-op 17%, Multiplayer 13.2%, Action 6.5%
An online social game for two where by completing questions you prove to your friend that you really know them. Reveal products from the future as a reward.
Why similar: Online Co-Op 56%, Co-op 22.5%, Multiplayer 12.2%, Casual 9.4%
FLING UP TOGETHER is a 2-player online co-op physics platformer where you and a friend share one rope. Pull to fling, rescue, and sabotage each other as you climb color-coded floating islands - one bad move can send you both back down.
Why similar: Online Co-Op 27.4%, Co-op 22.1%, 3D Platformer 18.5%, Multiplayer 11.4%, Puzzle Platformer 10.4%
Physics-based online co-op rescue simulation for up to 4 players. Carry, drag, and throw, do whatever is necessary to save the patients! Gain money by healing them and upgrade your clinic.
Why similar: Online Co-Op 26.5%, Co-op 26.2%, Multiplayer 13.9%, Puzzle Platformer 11.4%, 3D Platformer 11.1%
In this chaotic 1-4 player co-op police simulation, perform traffic stops, check documents, search vehicles, find contraband, chase suspects, survive shootouts, and make your own rules with your friends.
Why similar: Online Co-Op 35.9%, Co-op 24%, Multiplayer 18.3%, Casual 7.7%, Action 6.8%
Dummy Falls is a co-op game where you and your teammate tries to overcome various obstacles until the end.
Why similar: Runner 27.3%, Co-op 17.9%, 3D Platformer 17.2%, Online Co-Op 10.7%, Puzzle Platformer 7.8%
2 Bows 1 Arrow is a true co-op adventure for 2 players! You can test the strength of your connection on numerous levels by shooting a bow, BUT you share ONE arrow for TWO. Levels that require coordination of actions and logic to defeat enemis and solve numerous puzzles, await you.
Why similar: Runner 23.4%, Online Co-Op 22.6%, Co-op 17.1%, 3D Platformer 10.1%, Multiplayer 9.3%
Jump, climb, and glide your way through dangerous challenges in this co-op dragon adventure. Young and baby dragons must work together using their unique strengths to solve puzzles, overcome obstacles, and reach new heights... Just make sure not to fall. Can you help them find their way home?
Why similar: Online Co-Op 30.3%, Co-op 22.5%, 3D Platformer 16%, Multiplayer 15.3%, Puzzle Platformer 8.9%
Dumb Ways to Build is a chaotic, physics-based co-op game. Team up with friends to assemble your crew and take-on dangerous construction jobs. With all the gear and no idea, work together to build your path forward, or die trying!
Why similar: Online Co-Op 38.9%, Co-op 16.6%, 3D Platformer 13.9%, Multiplayer 13.8%, Action 8.8%
SEMO is a co-op physical platformer in which you move and jump your triangle to collide with the circle to get it to the target point.
Why similar: Online Co-Op 29.8%, Co-op 22%, Multiplayer 15.3%, Puzzle Platformer 10.5%, Level Editor 6.9%
Spread Kabsa around the world in this chaotic co-op physics game. Grab a buddy and lead the adventure of two chefs through deadly firepits, tricky platforms, angry vendors and much worse things to DEFENITELY make your friendship better.
Why similar: Runner 30.3%, Co-op 19.9%, 3D Platformer 16.9%, Online Co-Op 13.6%, Multiplayer 7.7%
A chaotic two-player climbing game where you control one monkey together, one arm each, and battle physics, panic, terrible coordination, mistimed grabs, desperate recoveries, and an endless chain of bad decisions on every climb.
Why similar: Online Co-Op 37.4%, 3D Platformer 21.6%, Multiplayer 15.3%, Puzzle Platformer 6.7%, Casual 6.5%
Think and Coop is an exciting arcade game designed for offline and online collaboration. Travel through forests and fairytale lands to complete levels and face new challenges. Full synchronization and teamwork are the keys to success in this fantastic adventure.
Why similar: Runner 21.1%, Online Co-Op 20.7%, Co-op 17.9%, 3D Platformer 13.2%, Multiplayer 10.4%
Edison redefines gaming with more players in one space than ever. It's not just multiplayer; we support thousands of concurrent players, creating new game formats. Discover a universe of casual games, like platformers, treasure hunts, and sports all revolutionized by massive multiplayer interaction.
Why similar: Runner 24.8%, Online Co-Op 17.5%, Co-op 17.2%, Sandbox 11.1%, Multiplayer 10.4%
Golf your way out of a monster-infested magical dungeon! Use enchanted powers to launch glowing crystals into portals while dodging traps, monsters, and each other. Up to 7 players can join the chaos—expect wild shots, accidental sabotage, and a lot of yelling.
Why similar: Runner 43.3%, Online Co-Op 28.9%, Co-op 12.9%, Action 4.6%, Casual 4.4%
Climber Animals is a challenging and dynamic parkour game for 1-8 players. In this game,overcome obstacles and climb to the top with your friends. If you fall, your progress is lost and you start over. Keep your balance on this challenging climb and compete with your friends to reach the top.
Why similar: Runner 24.1%, Online Co-Op 20.3%, Co-op 16.1%, 3D Platformer 15.5%, Multiplayer 10.2%
The control of two brain halves that have declared their independence now lies in your and your friend's hands. Soar into the skies with Co-Ape: Rise Of The Monke! Remember, synchronization is everything!
Why similar: Runner 27.7%, Online Co-Op 26.3%, Multiplayer 12.4%, 3D Platformer 11.8%, Puzzle Platformer 8%
"Man on the Block" is a game where you control a man and jump down blocks that serve as scaffolding. Points are added each time you land on a block, so try to land on as many blocks as possible.
Why similar: Runner 44.3%, 3D Platformer 25.5%, Action 13.6%, Casual 12.3%, 3D 3.5%
koᴉnori - an ambient and cozy cooperative summer adventure for two, - solve puzzles shaped by light and shadows together, in a world inspired by Japanese aesthetics and cooled with watercolor touches.
Why similar: Online Co-Op 27.9%, Co-op 27.1%, 3D Platformer 13.5%, Multiplayer 10.6%, Puzzle Platformer 7.3%
Cube Party is a 2-8 player co-op puzzle and adventure game! Team up with friends, stack your box characters into walls, solve puzzles, overcome obstacles, and find the key to clear 40+ unique levels!
Why similar: Runner 24.7%, Online Co-Op 16.1%, 3D Platformer 15.1%, Multiplayer 12.2%, Co-op 9.8%
In this physics-based co-op platformer, you and a friend must carry your short-tempered king through deadly medieval courses. Dodge traps, maintain balance, and work together to reach the throne room. One wrong step, and the king might crown you with his rage!
Why similar: Online Co-Op 26.7%, Co-op 21.6%, 3D Platformer 17.7%, Multiplayer 12.2%, Puzzle Platformer 6.9%
Play as a rabbit, run through a sandbox world, and collect scattered medals in this 3D action game.
Why similar: Runner 54.5%, 3D Platformer 29.4%, Action 8.5%, 3D 5%, Indie 1.9%
Tower Up! Climb to the sky in this physics-based tower builder. Place each block carefully and build your way upward. The journey takes you up one massive vertical map, with increasing challenge the higher you go. Play solo or team up with friends.
Why similar: Online Co-Op 29.9%, Co-op 21.7%, 3D Platformer 17.1%, Multiplayer 15.3%, Puzzle Platformer 9.3%
Jump into the frenzied action and the whacky humor of a pure 2.5D side-scroller! While they were going to their old high school for what was supposed to be the party of their life, four long-time friends end up in a ghost town full of monstrous creatures.
Why similar: Online Co-Op 29.7%, Beat 'em up 26.9%, Co-op 23.6%, Action 10.2%, Multiplayer 7%
Drunk Mages is a co-op game. Players are drunk wizards trying to brew potions. Being drunk makes things a bit harder. Each level has its own unique design and different challenges that must be completed.
Why similar: Online Co-Op 33.1%, Co-op 24.7%, Multiplayer 15.9%, 3D Platformer 9.2%, Casual 7.2%
In Chaos Club, you and your friends are undercover bouncers trying to survive the worst nightclub shift ever. Check suspicious guests, blend into the crowd, fix whatever the impostors ruin, and throw them out before the club becomes tomorrow’s news.
Why similar: Co-op 24.2%, Beat 'em up 17.6%, Multiplayer 15.9%, Online Co-Op 15.8%, Casual 7.5%
Bone Born is Topdown, defense, casual and CO-OP online game. Summon your skeleton with your friends and family!
Why similar: Online Co-Op 34.2%, Co-op 24.3%, Multiplayer 15.3%, Casual 6.7%, Action 6.3%
Build and play the deadliest levels together in Happy Funtime Labs and discover what your plushies are really made of.
Why similar: 3D Platformer 21.3%, Level Editor 20.5%, Online Co-Op 19.5%, Sandbox 14.2%, Multiplayer 12.3%
A 2–4 player co-op climb where you each have your own character. Your mouse is your own eyes — but your keyboard moves your FRIEND, and their keyboard moves you. You can see exactly where to go, with no way to walk yourself there. Reach the top together, or knock each other off.
Why similar: Online Co-Op 30.9%, 3D Platformer 23.9%, Co-op 23%, Multiplayer 14.8%, Casual 3.8%
Cook, run, jump, and throw— all in the name of FoodCorp. This chaotic, physics-based spin on the classic cooking formula demands speed, strategy, and just the right amount of panic! Play with up to 4 friends and try to run the restaurant smoothly... or let it all go up in flames.
Why similar: Online Co-Op 33.5%, Co-op 21.1%, 3D Platformer 18.3%, Multiplayer 14.6%, Action 4.7%
Waning Moon es un juego en el que para escapar tendrás que hacer una cierta cantidad de tareas para escapar.
Why similar: Online Co-Op 43.2%, Co-op 35.2%, Multiplayer 19.1%, Action 2.5%
You're a sponge. You're on a raft. The river is trying to destroy you. Chaos everywhere. Up to 4 players, drop-in co-op gameplay, with proximity voice chat and one extremely fragile raft.
Why similar: Online Co-Op 32.2%, Co-op 16.9%, 3D Platformer 12.4%, Multiplayer 12.1%, Action 7.2%
Play as cats trapped in forgotten tombs. Solve puzzles, dodge deadly traps, find food, and cooperate with friends to uncover a path to freedom.
Why similar: Online Co-Op 32.2%, Co-op 27.9%, Multiplayer 14.1%, Puzzle Platformer 10.8%, 3D Platformer 8.7%
PICO PARK is a cooperative local/online multiplay action puzzle game for 2-8 players.
Why similar: Online Co-Op 37.5%, Co-op 21.2%, Multiplayer 20.7%, Puzzle Platformer 10.7%, Casual 4.2%
We Lift Together is a 1 - 6 players co-op game about delivering package across dangerous mountains. Climb challenging terrain, work together, and make sure the package arrives safely.
Why similar: Online Co-Op 32.9%, Co-op 24.1%, Multiplayer 17.1%, 3D Platformer 13.3%, Action 5.5%
Escape the rising lava in this challenging online co-op platformer! Team up with up to 14 players, overcome deadly traps, solve puzzles, and race to the exit before the lava catches everyone.
Why similar: Online Co-Op 32.3%, Co-op 23.8%, Multiplayer 16.6%, Puzzle Platformer 11.6%, Casual 6.5%
Climb up from the depths of Hell. Scale various worlds solo or chained together with your friends in the 1-4 player platforming sensation.
Why similar: Co-op 34.5%, Online Co-Op 24.4%, 3D Platformer 15%, Multiplayer 11.6%, Puzzle Platformer 9.6%
Animals Collision is a party game. Play as humanoid animal and fight for your victory: solo or online up to 4 players. There is no space for other animals on the arena!
Why similar: Online Co-Op 34.7%, Co-op 21%, Multiplayer 18.3%, Action 7.9%, Casual 7.3%
✨Support up to 8 pigs 🐖 online with fun adventures. Climb the peak together, defy setbacks, showing your skills and perseverance. Cooperation or competition is up to you.🐽 "Piggy Only Up" is full of challenges and joys, waiting for you to join. Come on and call your friends.🐷
Why similar: Runner 22.4%, 3D Platformer 17.8%, Co-op 17.6%, Multiplayer 11.1%, Online Co-Op 9.4%
A multiplayer collection game where you must survive in a mysterious space filled with various desserts. Evade hungry monsters that relentlessly pursue you, find sweet items hidden throughout the map, and safely transport them to earn sales profits.
Why similar: Online Co-Op 37%, Co-op 22.9%, Multiplayer 19.5%, Casual 7.3%, Action 5.8%
Challenge Party is a 2-4 player online party game. The purpose of the game is to compete with your friends in many minigames.
Why similar: Online Co-Op 28%, Co-op 24.3%, Beat 'em up 18.5%, Multiplayer 12.2%, Action 7%
Highschool 53 is a first-person psychological survival horror game. As a technician trapped in a decommissioned school, use maintenance tools to hack systems, weld doors, and evade feral genetic experiments. Uncover the dark truth of the Erebus Protocol before the facility consumes you.
Why similar: Online Co-Op 28.9%, Co-op 23.4%, 3D Platformer 16.4%, Multiplayer 11.9%, Puzzle Platformer 8.8%
A co-op platformer experience you can play with a friend! In a vertical world full of obstacles, create creative solutions and escape using portals, either with your friend or solo...
Why similar: Co-op 29.8%, Online Co-Op 22.4%, 3D Platformer 13.4%, Multiplayer 12.4%, Puzzle Platformer 11.2%
In this silly online cooperative game with birds, puzzles, and minigames, you'll work together with your friends to overcome any obstacle. But watch out! You will fail or succeed as one.
Why similar: Co-op 34.5%, Online Co-Op 29.8%, Puzzle Platformer 14.3%, Casual 9.6%, Multiplayer 7.6%
SIQIL is a chaotic walking simulator where you're a newly hatched chick balancing on a pair of clumsy human legs. You walk with your own body via webcam, and of course you can play with mouse, keyboard, and controller too. Play solo, or better yet, bring your friends for the real chaos.
Why similar: Co-op 31.8%, Online Co-Op 29.7%, 3D Platformer 13.5%, Multiplayer 11.7%, Casual 9.1%