588 Co-op Simulation games your group can play together online, including Mount Your Friends, Goat Simulator, and Arma 3.
All games: 24
Experience the extreme simulated sporting sensation that's sweeping our digital nation! Mount Your Friends is a fiercely competitive sporting event for you to play with your friends in the contextual security of your own home, assuming that your home is not composed of sexual innuendo.
Goat Simulator is the latest in high-tech Goat Simulation technology.
Experience true combat gameplay in a massive military sandbox. Deploy with a wide variety of single- and multiplayer content, a massive arsenal of modern weapons and vehicles, and limitless opportunities for content creation. Authentic, diverse, open - Arma 3 sends you to war.
Tragedy! Santa; the toy giving folk-hero, and purveyor of fine Christmas goods, has had enough. Endless requests from greedy children wanting more and more every year, tax increases, pressure from elf unions, bills, reindeer!
Hungry? Take your restaurant from a one star abomination to a five star wonder in Cook, Serve, Delicious! Plan your menu, upgrade your equipment, and master challenges with easy-to-learn, hard-to-master gameplay!
Build ships, stations, and factions with friends in StarMade’s online voxel sandbox. Create your own goals across a generated universe, with server-based co-op and PvP.
Feel the excitement of flying the Su-25T "Frogfoot" attack jet and the TF-51D "Mustang" in the free-to-play Digital Combat Simulator World!
Rule your land and dominate the world with unparalleled freedom, depth and historical accuracy. Write a new history of the world and build an empire for the ages.
Play Wargame: Airland Battle’s turn-based Cold War campaign online with one friend, then fight its battles together in real time.
After the battle is over, someone has to cleanup the mess! Introducing Viscera Cleanup Detail: Shadow Warrior from RuneStorm, a unique crossover mini-game that combines the worlds of Viscera Cleanup Detail and Shadow Warrior.
RaceRoom is free to download and built on true-to-life physics and Force Feedback. Drive DTM, FIA WTCC, WTCR and a huge library of cars and tracks—including the most up-to-date Nordschleife. Jump in, race instantly, and expand your garage with a massive selection of content.
Multiplayer is designed for up to ten players, with online and LAN co-op or PvP modes; build empires together against AI rivals and choose from six factions and several match endings.
Piloting a wide range of aircraft, players engage in aerial dogfights and dangerous fighter missions across the major theaters of war during WWII.
The New Fatal Error DLC includes a new 5-mission Operation and touch-screen controls.
Three years after the conflict in Chernarus, portrayed in the original Arma 2, a new flashpoint explodes in the Green Sea Region. Coalition forces led by the US Army are deployed to Takistan to quickly restore peace and prevent further civilian casualties.
Thrillville™: Off the Rails lives up to its name with 20 death-defying rides! Players can build incredible coasters to leap from one track to another, launch through the air like cannonballs, blast through a burning rings of fire and more!
Garry's Mod has no built-in co-op campaign, but its online Sandbox gives you and your friends physics tools, props, and a huge community workshop to turn an empty map into your own project.
Dinkum is a survival life simulation game set on an island inspired by the rugged Australian outback. Farm, hunt, mine, fish, and forage to gather resources, expand your town, and discover what makes Dinkum so special—either solo or with friends.
Explore the world in the golden age of offroading. Drive iconic 4x4 vehicles from the 60s to 80s by yourself or with friends through challenging trails and beautiful scenery.
Never Split the Party is an ultra social rogue-like! You're one of four adventurers joining together to explore a procedurally generated dungeon, amass powerful upgrades, and cooperate with your fellow adventures to conquer and crush the evil dungeon champions!
A fun hidden role game where you backstab your co-workers and get mad at your co-workers for backstabbing you. (6-10 players)
Choose one of the characters and start your journey. The game has many interesting things in store: building, crafting, puzzles, bosses, mystery, laughs, quests etc.
Command the seas in Maelstrom! Engage in fast-paced naval battles with powerful warships and colossal sea monsters. Customize your fleet and dominate the Abyssal Ocean. Are you ruthless enough to survive?
The Blackout Club is a first-person co-op horror game centered around a group of teenage friends investigating a monstrous secret beneath the skin of their small town. 1-4 players explore procedurally-generated missions against a fearsome enemy you can only see with your eyes closed.