Garry's Mod
2006CasualIndieSimulation
Simulation Online Co-op Games on Steam
Games sitting in the overlap between Simulation and online co-op ā the two filters most groups actually care about at once. Steam's own store makes this intersection awkward to search for, because genre and multiplayer mode live in separate filter systems.
For what to check before committing to one of these, see the full Online Co-op guide.
60 games
Ranked by how often each game appears in the libraries compared here.
1 2 
Stardew Valley892016IndieRPGSimulation3 
Don't Starve Together832016ActionAdventureIndie4 
The Forest832018ActionAdventureIndie5 
Tabletop Simulator2015CasualIndieRPG6 
Factorio902020CasualIndieSimulation7 
Raft2022AdventureIndieSimulation8 
VRChat2017AdventureCasualMassively Multiplayer9 
War Thunder812013ActionMassively MultiplayerSimulation10 
Satisfactory912024AdventureIndieSimulation11 
7 Days to Die2024ActionAdventureIndie12 
Project Zomboid2013IndieRPGSimulation13 
Sons Of The Forest2024ActionAdventureIndie14 
Arma 3742013ActionSimulationStrategy15 
Plague Inc: Evolved2016CasualIndieSimulation16 
Ashes of the Singularity: Escalation812016SimulationStrategy17 
Chained Together2024AdventureCasualIndie18 
Robocraft2017ActionIndieMassively Multiplayer19 
Schedule I2025ActionIndieSimulation20 
Viscera Cleanup Detail2015IndieSimulation21 
Europa Universalis IV872013SimulationStrategy22 
Sins of a Solar EmpireĀ®: Rebellion822012ActionIndieSimulation23 
Barotrauma812023ActionIndieSimulation24 
The Escapists 2752017IndieSimulationStrategy25 
Kingdom Two Crowns2018AdventureIndieSimulation26 
Liar's Bar2024CasualIndieSimulation27 
Northgard: Definitive Edition812018AdventureIndieSimulation28 
Euro Truck Simulator 2792012IndieSimulation29 
Guns of Icarus Alliance2017ActionAdventureIndie30 
Core Keeper862024ActionAdventureIndie31 
The Riftbreaker832021ActionAdventureIndie32 
Teardown802022ActionIndieSimulation33 
Arma 2: Operation Arrowhead732010ActionSimulationStrategy34 
Abiotic Factor2025ActionAdventureRPG35 
Door Kickers832014ActionIndieSimulation36 
Green Hell782019ActionAdventureIndie37 
American Truck Simulator762016IndieSimulation38 
Dungeons 3752017SimulationStrategy39 
Biped742020ActionAdventureCasual40 
Conan Exiles - Public Beta Client2018ActionAdventureMassively Multiplayer41 
Conan Exiles Enhanced2018ActionAdventureMassively Multiplayer42 
theHunter: Call of the Wildā¢2017AdventureSimulationSports43 
Monster Prom 2: Monster Camp2020IndieSimulation44 
One-armed cook2022CasualSimulationFree To Play45 
Zero Hour2024ActionSimulationStrategy46 
Tropico 6782019SimulationStrategy47 
Embr722021ActionCasualIndie48 
Bongo Cat2025CasualIndieMassively Multiplayer49 
Coral Island2023AdventureCasualIndie50 
Empyrion - Galactic Survival2020AdventureIndieSimulation51 
Just Die Already2021AdventureIndieSimulation52 
Rebel Inc: Escalation2021SimulationStrategy53 
Staxel2019IndieRPGSimulation54 
Old World802022RPGSimulationStrategy55 
Offworld Trading Company782016IndieSimulationStrategy56 
Arma Reforger2023ActionSimulationStrategy57 
How to Fish2026ActionCasualIndie58 
OpenTTD2021CasualIndieSimulation59 
Party Club2025ActionCasualIndie60 
Supermarket Together2024CasualIndieSimulation
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