オンラインでみんなと遊べるアクション（Singleplayer）ゲーム1,887本。Mayhemers、Enlisted、Backrooms: Extractionsなど。
すべてのゲーム: 24
"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.
In Enlisted, you are not only commanding a single soldier, but an entire squad! This MMO squad based shooter recreates the key battles of the bloodiest war of the 20th century, with hundreds of soldiers, tanks and aircraft taking part in each battle.
Co-op horror for 1 to 6 players. Anyone can try to escape the Backrooms. You are going back in: locate the lost agents, solve the puzzles, film the entities, and hold out until extraction. Everything you carry can be lost. Your ranks, gear and storage are built to last.
Choose a planet, build your fortress, and prepare for war. Arm yourself with powerful weapons, deploy troops, construct turrets, and defend your stronghold against relentless attacks. Team up with a friend or fight alone in this action packed block builder, where only the strongest survive.
Throw yourself into an epic 3D beat’em up adventure with adorable knights, full of surprising worlds and situations. Grab your buddy and play in 2 player co-op to save the princess, but this is only the beginning!
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!
Mesorift Survival is a classic survival game with PvP and PvE elements, set in a tropical open world with three islands. Gather resources, build a base, craft weapons, and survive.
A fast-paced movement game, loosely inspired by Surf and B-Hop. Featuring 5 gamemodes, multiplayer, and a large, playground-like world. Master the movement, and conquer the leaderboards.
AFTERBLAST is a challenging FPS roguelite. Play SOLO or in CO-OP (1-4 players). Get stronger each run. Obtain powerful abilities, weapons and find a way to save your planet. Stand up against the Gods and defeat hordes of monsters in intense bullet-hell combat!
Towerborne is an exciting side-scrolling Action RPG Brawler. As an immortal warrior journey across a crumbling world, uncover the mystery of the fallen City of Numbers, and push back the corruption threatening humanity’s survival.
Awaken the blade within you and reverse your fate in BLEACH Rebirth of Souls! Engage in thrilling battles with powerful sword abilities and characters from this legendary anime franchise.
Sent to find a missing billionaire on a remote island, you find yourself in a cannibal-infested hellscape. Craft, build, and struggle to survive, alone or with friends, in this terrifying new open-world survival horror simulator.
The Earth is in pieces...again! We've gotta do more to save the planet!
Lost Rift is a first person survival adventure shooter that blends cooperative base building with multiplayer PvE or PvP extraction expeditions. Journey solo or in teams of up to 5 players across a vast archipelago, craft gear, build bases, defeat raiders, and become legendary.
Mobmania is a four (4) player co-op real-time bullet-hell action rogue-like where you kill enemies, buy items after leveling up, and survive long enough against thousands of monsters and bosses until the final fight against the Witch.
Orcs Must Die! Deathtrap combines chaotic third-person combat with devious trap-laying strategy. Enjoy endless replayability as your War Mage grows stronger through roguelite progression. Repel relentless orc hordes solo or with up to 4 players.
Step into the wonderful world of Slackers! Picture this: you and your friends run out of drinks and the store is closing! Hop in a shopping cart, the ultimate eco-friendly marvel, master the art of riding an unpredictable beast, discover shortcuts as you pave your path to glory!
Daisho: Survival of a Samurai is an Action RPG with casual survival game mechanics and big village-building possibilities. You'll experience a new type of survival game with quests, continuous open world progression, monthly events and your dumb ways to die not harming your fun level.
Sixtar Gate: STARTRAIL is a rhythm game for keyboard set against a space exploration backdrop. Captain your science vessel alongside your navigator Shii as you explore the vast Sixtar system!
Seat customers, serve drinks, and manage chaos with up to 4 players! Keep the peace by considering customer types while seating them. Survive disasters, handle quirky customers, and design the perfect venue to keep the party going!
Enjoy action-packed flashy combat with incredibly satisfying combos and responsive controls! Numerous characters, each with completely unique playstyles and loads of unlockable moves & upgrades! This action roguelike sets the bar for fluid fast-paced action.
Become the ultimate shapeshifter in this hack n’ slash ARPG with action-based combat. Transform seamlessly and customize both your human and beast powers as you level up, find new gear and DNA-strands. Venture out solo or in co-op to uncover the secrets sealed inside a legendary city.
In MECHWARRIOR 5: CLANS, players become new Smoke Jaguar pilots in the Clan Invasion of the Inner Sphere. Lead a five-mech "Star" squad across diverse planets, engaging in an expansive campaign with immersive gameplay and intricate combat. Customize BattleMechs and explore strategic options.
Experience the origins of one of gaming’s most acclaimed franchises like never before, faithfully remastered and optimized for PC.