オンラインでみんなと遊べるアクション（Casual）ゲーム882本。Slap 'em UP!、Zombieville USA 3D、Mutant Football League 2など。
すべてのゲーム: 24
Get in on the casual party card game where every hand is a chance to roast your friends! Slap them down with the higher cards, blast them with mocking stickers, or drop emotes they won’t forget. Dress to impress and make your way to the crown. Who’s the real king now?
Zombieville USA 3D is a stylized arcade shooter combining retro gameplay with strikingly polished visuals. Fight through an endless undead horde in the bleak hellscape of suburbia! Choose your weapons, grab a friend, and see how long you can survive.
Mutant Football League 2 is a hard-hitting, arcade-style football game that combines intense gameplay, wisecracking mutants, weapons, deep strategy, and outrageous humor. Prepare yourself for the most insanely brutal football you’ll ever experience.
Explore the world with GeoGuessr Steam Edition! Compete against others, climb divisions, and prove your geography skills. Travel to stunning locations, analyze clues, and make your best guess. Quickplay Duels and Daily Challenge is unlimited Free-to-play.
UFO 50 is a collection of 50 single and multiplayer games that span a variety of genres, from platformers and shoot 'em ups to puzzle games, roguelites, and RPGs. Our goal is to combine a familiar 8-bit aesthetic with new ideas and modern game design.
DRAGON BALL GEKISHIN SQUADRA is Dragon Ball's first team-oriented free to play game.
Grocery Store Simulator is a 1-4 player co-op game where you build and manage your own supermarket by stocking shelves, setting prices, hiring staff, and customizing your store, all while expanding your business and keeping customers happy.
The latest title in the "TGM" series, "TETRIS® THE GRAND MASTER 4 -ABSOLUTE EYE-" offers the ultimate Tetris game that no one has ever experienced before. Challenge yourself in new modes such as ASUKA and SHIRANUI.
Your favorite indie formula MMO is back! Experience the evolution of formulas with up to 39 friends!
Get ready for a thrilling mix of genres: a cooperative, first-person, open-world fantasy tavern simulator, action, fishing, hunting, exploration, and completing fun and diverse quests. And, of course, COOKING! Play with friends, feed and quench the thirst of the entire world!
The Diner Bros are back! With the same hectic cooking and serving, and now customization of your bustling restaurant! Serve quirky customers, earn cash to buy equipment, and discover new recipes in Diner Bros 2. Team up for 4 player local co-operative fun. No friends? Hire servers!
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!
Ready, Set, Rumble! Join Sonic in this intense arcade royale game set in Dr. Eggman's diabolical Toy World. Collect legendary skins, all-new emotes, and build skills as you progress through this action-packed game! Mayhem is best with friends!
PICO PARK is back with all new levels! Play with 2-8 players locally or online in this co-op action-puzzle game!
A game about high-speed downhill longboarding and a sloth named Eddy. Carve up the mountainside as you drift through the beautiful landscape, and find the perfect balance of speed and control.
Fight with your whole body. If you lose an arm, it's just a scratch. If you lose the other, it's a flesh wound. If you lose your legs, headbutt them. LET'S FIGHT, FIGHT, FIGHT!
Play as different fish, devour opponents in the ruthless underwater world of survival of the fittest, and evolve your abilities.
Strinova is an anime-style third-person tactical competitive shooter. Switch freely between three-dimensional and two-dimensional forms in this one-of-a-kind game that offers a unique tactical shooting system for an unparalleled experience.
The LEGO® Harry Potter™: Collection brings LEGO® Harry Potter™: Years 1-4 and LEGO® Harry Potter™: Years 5-7 together in one game, now remastered with enhanced graphics.
Toaster Arena is a first person multiplayer arena shooter where players battle it out on different maps and game modes. Use Advanced movement to traverse obstacles and gain the advantage on the battlefield.
Once Human is a Strange Worlds Survival Game set in a strange, post-apocalyptic future. Unite with friends to fight monstrous enemies, uncover secret plots, compete for resources, and build your own territory. Once, you were merely human. Now, you have the power to remake the world.
Wild Woods is a couch co-op game full of action, teamwork and woodland critters. One to four players take on the role of brave little cats defending their wooden wagon on its way through a dangerous forest. Clever cooperation is key - their way is full of obstacles!
"Mayhemers" is a multiplayer chaos creation game for up to 8 players with a procedurally generated map. Choose your side: Will you be a Mayhemer or a Guardian? Mayhemers' task is to create chaos. Guardians' task is to stop them.
Challenge yourself and master 4 Distinct worlds with 66 finely tuned level screens and climb to the top of the Steam Leaderboards in this retro pixel art speedrunning platformer!