Co-op & Multiplayer Games

Start from a tiny camp and build a sprawling subterranean world together.

Build a thriving farm together with up to 8 players on PC in the 1.6 update.

Teenage Mutant Ninja Turtles: Shredder’s Revenge reunites Leonardo, Michelangelo, Donatello and Raphael as they kick shell in a beautifully realized beat ’em up.

Wingspan is a relaxing, award-winning strategy card game about birds for 1 to 5 players. Each bird you play extends a chain of powerful combinations in one of your three habitats. Your goal is to discover and attract the best birds to your network of wildlife preserves.

Witch It is a multiplayer hide & seek game set in a vibrant, magical world. Brave hunters seek hidden witches that curse their villages!

Compete across land, water and air in incredible transforming vehicles that change from cars to boats to planes mid-race.

The iconic intrepid invertebrates return with a vengeance in the fan-favourite classic Worms™ Armageddon. Relive their glory days once again as you blast your way into enemy territory, sweep their fields and remain the last worm standing.

Project Winter 2.0: Cabin Fever is an 8-player survival and social deception game where teamwork is vital, but betrayal is inevitable. Face the wilderness, uncover traitors, and survive paranoia in this streamlined yet chaotic multiplayer experience.

Design and simulate the starships of your dreams! Command your ship or fleet in epic battles and manage your crew while exploring a dangerous galaxy. Play alone or with friends, test your ships in online PvP, and let your imagination reach for the stars!

Build a civilization of real people, working together to advance society and stop a meteor, all without destroying the ecosystem in the process.

Welcome to Feign, an intriguing role-based game that blends mystery, strategy, and deception. Step into a quirky, small town where Innocents, Impostors, and Neutrals navigate suspenseful gameplay. Your mission unfolds under the cover of night - then it's up to the village by day to vote someone out!

Unleash your inner miner as you commandeer a high-tech Mining Mech! Mine for valuable resources and upgrade your mech for even bigger hauls as you explore the underground. Fun to play alone or with up to 7 friends in online co-op multiplayer!

The threequel to the party game phenomenon features the deadly quiz show Trivia Murder Party, the say-anything sequel Quiplash 2, the surprising survey game Guesspionage, the t-shirt slugfest Tee K.O., and the sneaky trickster game Fakin’ It. Use your phones or tablets as controllers, and play with up to 8 players, plus an audience of up to 10,000!

Five new games: the hit threequel Quiplash 3, the collaborative chaos of The Devils and the Details, the fierce drawing game Champ’d Up, the speech game Talking Points and the guessing game Blather 'Round. Use phones or tablets as controllers and play with up to 8 players, and an audience of 10,000!

Bronzebeard's Tavern is a goofy and playful restaurant manager sim where 1-8 players can work as a team with multiplayer co-op. Fulfill a number of different roles, serve a diverse range of customers and cook up delicious dwarven cuisine.

TaleSpire is a beautiful way to play pen and paper RPGs online. Bring your stories to life and embark upon campaigns together with your friends, regardless of where you are in the world.

It’s the wildest Party Pack yet, with the absurd deathmatch Trivia Murder Party 2, the weird word circus Dictionarium, the hidden identity game Push The Button, the comedy contest Joke Boat and the offbeat personality test Role Models. Use your phones or tablets as controllers and play with up to 10 players, plus an audience of up to 10,000!

An online multiplayer game about shapeshifting deception and betrayal! As a hapless, brave spaceman employed by The Company you'll work diligently to defend and be rescued from failing outposts, but not everyone around you is who they claim to be...

Unleash the apex worm in you! Join a world where you eat to grow and aim to become the largest worm around. Dodge viruses, cut off enemy paths, and indulge in addictive multiplayer action. Custom skins, game modes, and more await!

Scam Line is a 4–8 player social deception game where your party will face different challenges. Become a liar, a manipulator, a cheater, or find your own path to victory

The sequel to the party game phenomenon The Jackbox Party Pack, featuring FIVE fresh, rib-tickling party games! Your phones or tablets are your controllers – no big mess of controllers needed. For up to 8 players plus an Audience of up to 10,000! It’s a game-night riot in a box… without the box!

With BADLAND: Game of the Year Edition, experience the multi-award-winning action adventure like never before - redesigned for Steam.

PICO PARK is back with all new levels! Play with 2-8 players locally or online in this co-op action-puzzle game!

Your new favorite Werewolf game! Seat around the fire with friends, play a villager, a werewolf or another type of character and use strategy to win!

A toxic waste spill finds its way into the water supply, causing the recently deceased to rise from their graves. Now it's up to you to blast your way through the hordes of undead if you're going to escape the city. On the way to your rescue, you'll search stores and houses for supplies, and trade with other survivors.

It's ten years since the infection started. Long-established settlements are collapsing, one by one, for unknown reasons. Survivors are running to the hills to escape, hoping for safety in remote places. As another refugee, you're here to carve out a new life for yourself - by any means necessary.

Build your own Super Mining Mech and explore the underground in search of new natural resources. Customize your mech with unlockable parts to dig deeper than ever - by yourself or with up to 7 friends in online co-op multiplayer! So, what are you waiting for? There’s mining to be done!

For 3-8 Players and an Audience of thousands! Your phones or tablets are your controllers! The gut-busting, say-anything, no-rules party game!

The No. 1 LEGO® videogame franchise triumphantly returns with a fun-filled, humorous journey based on the blockbuster film. The game will also feature brand new story content from the Star Wars Universe that explores the time between Star Wars: Return of the Jedi and Star Wars: The Force Awakens.

Revenge of the Savage Planet is an upbeat, satirical action adventure Sci-Fi. Jump, shoot and collect your way across vibrant alien worlds, uncovering new gear and upgrades, while discovering various hidden secrets.

Run up the score in a relaxed slugfest or push the limits of your reflexes in this refined baseball simulator. The third entry in the series features all-new Franchise and Online Leagues modes, major graphical enhancements, and on-field additions including pickoffs and situational player traits.

A team based PVP game where groups of up to 8 players must work together to operate a tank!

West Hunt is a 1-8 player social deduction game set in the Old West! Among the hardworking townsfolk hides an Outlaw or two causing mischief and mayhem across town. Luckily, there are eagle-eyed Sheriffs ready to sniff them out! No matter what role you play, you're sure to have a hog-killin' time!

DRAGON QUEST BUILDERS™ 2 is a block-building RPG set in a fantasy land threatened by an evil cult. Explore, battle, build and harvest in the charming single-player campaign or build big projects in the online sandbox mode for up to 4-players.

CONTROL FANTASY RACES, SET OFF TO CONQUER NEW LANDS, OVERTHROW YOUR ENEMIES AND CLAIM THE VICTORY! In this digital adaptation of the legendary board game, dive into a world inhabited by whimsical fantasy races.

Crash land on a hostile planet where you'll have to build the strongest defenses if you wish to live to escape from it. But be warned... this planet is merciless. Build strong, and smart; else physics may flood or destroy your only hopes of survival.