Co-op & Multiplayer Games

Survive on a mysterious island after a plane crash! Solve match-3 puzzles, restore your camp, craft tools, grow crops, explore jungles and lagoons, uncover hidden treasures and reveal the island’s secrets!

Catto Pew Pew! is a physics-based shooter game where competitive gameplay, proximity chat, and pure chaos collide. Shoot your opponents into the sky and claim your victory!

A Multi-player incremental clicker game.

Towers together is a cooperative tower defense game with cards. Combine your cards with your friends’ cards to achieve powerful combo, but get ready to fail and laugh together. Build towers, cast spells, have fun with friends!

Build, design, and explore your own fantasy world using over 1000+ items, in this relaxing sandbox game. No missions, no objectives, no timers. Just stress-free building, exploration, and good vibes.

Welcome to Banter, the ultimate social VR sandbox where goofy physics and good times reign supreme! Adventure, excitement, and hilarious experiences with friends await you in the Bantaverse. So, what’re you waiting for? UNMUTE THE VIDEO! Can you recognise the voice?

Lux Delux is a fast-paced turn-based-strategy game of risk and world domination, with so much more! Highly moddable, Lux has over 900 maps, diverse random map generators, a biohazard mode, an AI SDK, and an online multi-player league.

High-octane 2D shooter. Put your shooting skills to the test with over 200 weapons and attachments. Play game modes solo or co-op online!

Did you ever wonder what sports would be like on the moon? This dynamic multiplayer game will have you on the edge of your seat for hours to come! Mixing elements of Rugby with the low gravity of the moon, you can work as a team to score goals against your opponents.

Final Factory blends factory building, spaceship design, and a rich universe to explore. Build a mega factory and command a massive fleet against the hostile local aliens. Discover new technologies and unlock the secrets of an ancient civilization as you explore an infinite cosmos.

Compete for the world record in this fast-paced multiplayer racing platformer! Dash through short and fun levels, or be creative and build your own levels in the fully fledged level editor!

A community-driven rhythm game with a focus on creativity and expression.

Grand Mountain Adventure: Wonderlands lets you explore freely and at your pace entire ski resorts and the surrounding mountains. Unlock ski lifts and reach new areas by competing in challenges, or enjoy the scenery while you find your own path down the mountains.

Play the most exciting moment of baseball in this fast-paced dice and card game!

An online, multiplayer, pottery party brawler from Double Fine Productions. Grab your friends to assemble a team of colorful spirits, then sculpt ceramic battle armor on a pottery wheel. The size and shape of your pots determine their play-style and abilities—work together to douse the enemy's kiln!

Riichi Mahjong - A fun, strategic variant of the classic multiplayer game!

From the makers of the award-winning Star Realms Deckbuilding Game ®, Hero Realms combines the fun of deckbuilding games with the interactivity of trading card game-style combat.

Get ready to enter a new era of physics platforming. Polyball is a classic ball rolling game in the vein of Super Monkey Ball, Marble Madness, and Marble Blast - while taking cues from games such as the Sonic series, Trackmania, and Mario Kart.

Cookies vs. Claus is an action-packed battle game. With a range of characters to choose from, you can battle as your favorite cookie or take on a squad as a holiday character. Through both single and multiplayer, experience a unique asymmetric shooter that combines elements of FPS and battle arena games. THIS IS COOKIES VS. CLAUS!

THE BREED IS BACK! Celebrate 35 years of Alien Breed with the definitive collection. Featuring 6 classic games, interactive archives, modern controls, visual enhancements, co-op multiplayer, Online Rush Mode and Horde Mode, bringing the complete sci-fi horror legacy back to your screens.

New version of cult game with new levels and exclusive Steam online multiplayer! Frederic Chopin – a long time deceased classical compositor – returns back from beyond the grave to fight intense musical duels. In his way stand some of the worlds greatest pop stars charmed with enormous profits that wild commercialization provides

Chess just got an upgrade! Chess Ultimate, where precision strategy meets colorful chaos. Build your team from a roster of unique, quirky characters to defend your King while plotting your opponent’s downfall. Easy to pick up, endlessly fun to master, and a fresh take on the classic game of wits.

The world ended…But the fun didn’t! Race solo, or with your pals across the adorable post-apocalyptic world of Tray Racers! Grab a tray, surf the dunes, and get ready to SLIDE, DRIFT and TRICK your way to the finish line in this cute and colorful party racer, built for online multiplayer! YAHOOOOOO!

No chosen one, only a mortal soul. In this hardcore cultivation Roguelike, found a sect and forge a legacy across generations. Fall in battle to become a Sword Soul that protects those who follow. Master the Five Elements, defy fate, and turn every death into a step toward a greater awakening.

Holo's Hanafuda is a banter-filled card game battler fully voiced by and featuring hololive talent! Join Nakiri Ayame, Shirakami Fubuki, Ookami Mio, and Sakura Miko on a wild adventure through a strange land filled with card games and chaos!

Fast-paced online multiplayer party game for up to 4 players. Easy to pick up with chaotic rounds built for friend groups.

気軽に、だけど本格的。『棋桜（きおう）』でキャラクターと一緒に将棋を楽しもう。初心者には学びを支えるAIサポート、実力者には純粋な読みと一手の勝負を。あなたの一手から、対局が始まる。

Experience a 4K graphics strategy game with tactical depth, breadth, and challenge like nothing you have played before: the perfect mix of Chess, tactical setups and quests inpired by classic RPGs

Join millions of players online in the No.1 Cross Platform pool game! Experience stunning visuals, realistic physics, and fast-paced modes like 8-Ball, 9-Ball, and Blitz. Challenge friends, master trick shots, and climb the leaderboards - new to Steam!

Golf for Workgroups is a competently designed golf course, ball, player and cart simulation with a swing component designed to be satisfying. Up to four players each navigate a biped around a height field texture mapped to look like a golf hole.

Epic Card Game is a fast-paced card game of fantasy combat designed by Hall of Fame Magic players Rob Dougherty and Darwin Kastle. It has all the amazing game play and beautiful art of a digital trading card game, without the costs: you get unlimited copies of every card!

In this deeply strategic, full-information battle card game, choose your fighter from a diverse roster of spell-slinging duelists, tag-teaming werewolves, time-traveling boxers, dimensional knights, and more! Each fighter brings their own unique sub-system to combat, and comes with their own complete kit–no deck building or collecting necessary!

A fantasy strategy game that combines collectible card and board game mechanics. Build custom decks, choose powerful heroes, and engage in tactical, turn-based battles in competitive PvP leagues and battlefield tournaments.

Roll for the Galaxy is a dice game of building space empires for 2-5 players. Your dice represent your populace, whom you direct to develop new technologies, settle worlds, and ship goods. The player who best manages their workers and builds the most prosperous empire wins! This dice version of Race for the Galaxy takes players on a new journey through the Galaxy, but with the the feel of the original game.

A deceptively simple, post-apocalyptic style card game that you can play both online and offline!

Free to play 1v1 PvP in a few minutes. It's Battleship with superpowers: ships have unique abilities. Build a fleet of 4, outsmart your opponent, or challenge a friend with a friend code. Casual or ranked, cross-platform, 5M+ registered players.