Hidden 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
Tobacco Shop Simulator
Run your tobacco shop. Sign contracts with leading brands, order products, hire workers, expand your store, and never let your customers leave the store empty-handed. Play with friends or go solo, and enjoy the growth of your shop.
School 666
School 666 is a 1-4 Player Co-op Survival Horror. You must escape this endless nightmare. Try to identify the correct path and survive the anomalies in this endless school. Some extremely powerful anomalies will catch you to their dimensions. Explore the reason why you are here... and don't die.
Drift Legends 2
Arcade drifting with 50+ dream cars, from JDM icons to American Muscle. Master the art of the drift in a huge career, then dominate the competition in cross-platform online battles. Your legend begins now—no high-end PC required.
Parallel Experiment
Two detectives, one deadly experiment, a race against time. Each player only has one half of the puzzle. In this 2-player co-op puzzle game you can survive the parallel experiment only by working together.
Paranormal Cleanup
Clock in for the worst cleaning shift of your life: Unclog nasty toilets and scrub ectoplasm in this 1-4 player online co-op survival horror game. Get the job done and don't get caught by the entities hunting you!
Guilty as Sock!
Enter a chaotic courtroom where socks play lawyers, prosecutors, and judges! Use absurd evidence, craft wild arguments, and deliver verdicts in this hilarious online party game. Improvise, strategize, and shout "Objection!"—because in Guilty as Sock!, chaos always wins!
Forsaken Frontiers
Step into the frozen unknown in Forsaken Frontiers, a cooperative analog horror adventure set in the unforgiving embrace of an everlasting winter.
Mutants: Genesis
Mutants: Genesis is an online card game that you can play solo or with up to 3 players in PvE and PvP modes! Join the next generation of Psycogs and climb the ranks to establish yourself as Champion! Collect hundreds of mutants, fashion your own deck, cooperate with or fight other players!
Capcom Fighting Collection 2
Capcom's new fighting collection hits the stage! Choose from fan-favorite games like Capcom vs. SNK 2: Mark of the Millennium 2001 and Project Justice to 3D action games like Power Stone and Power Stone 2 in this collection of eight classic fighting games!
Broventure: The Wild Co-op
Broventure = Vampire Survivors + Base building + Co-op. Band together with friends and obliterate hordes of grueling enemies, gather crucial resources, and transform your camp into a sanctuary of liberation.
Omega Crafter
Adventure in a vast open-world survival craft game with your programmable sidekick Grammi! Program the Grammi to collect materials, build your town, craft weapons and armor to challenge strong enemies! Play alone or with friends online!
Equinox: Homecoming
Saddle up with friends and investigate a dark mystery, where each trail leads to wonder and intrigue. A string of events has set the idyllic island on edge. Discover the truth behind your mother’s disappearance and a local's sudden death. For fans of horses, murder mysteries, and cozy exploration!
Tank Squad
Tank Squad is a tactical-combat action game. Take part in big tank battles during World War II. Play single-player or coop (4 players). Repair your tanks, replenish supplies, manage the crew and get back to the action!
Survival Machine
Build your base on a moving Machine, travel through biomes with different resources, and prepare for the night when a zombie threat is much higher than during the day. Would you go solo or explore this new world with your best friends?
Vellum
Write on! Defend the books in Vellum, a co-op, literary roguelike! Harness class-defining colors, master an inspired spellbook, and influence the growth of your enemy! As a group or solo, you'll craft plot-twisting builds to rewrite the rules in Ink!
BOKURA: planet
"There's something I can't tell you..." Explore new frontiers of co-op gaming in BOKURA: planet, a puzzle adventure game that you can only play with two players. Take on the role of a spaceship's exploration crew and try to escape from the red planet you crash-landed on.
Bureau of Contacts
"Bureau of Contacts" - ghost-hunting game for 1-4 players, in which you'll encounter 2 enemies at once - location itself and the ghosts with most human-like intelligence ever. So...look around and watch what you say!
PARANOIA PLACE
PARANOIA PLACE is a 1-3 player online co-op survival horror game. Together or alone, you will need to solve puzzles, find items and run from the bloodthirsty demonic killer.
Call of Clans
Call of Clans is an online turn-based strategy card game set in a magical world. Build a versatile deck with minion and skill cards to challenge equally matched opponents in a world of swords and magic. Team up with others to conquer challenging co-op dungeons
Emissary Zero
Co-op horror (1-4 players). You are sent to explore a mysterious building at night. Find the Moon and try to return alive.
Unpossess: Exorcism Simulator
Unpossess is a 1-4 co-op exorcism simulator game set in the early 1900s. Players take on the role of exorcists responsible for addressing cases of human possession.
Secret Agent Wizard Boy and the International Crime Syndicate
Use magic spells and military surplus explosives to topple an evil crime syndicate hidden beneath a prestigious wizarding school. Learn spells, engage in espionage, and spread lore-unfriendly chaos.