オンラインでみんなと遊べるアクション（Action-Adventure）ゲーム555本。The Last Hero of Nostalgaia、Gotham Knights、Dying Light 2 Stay Human: Reloaded Editionなど。
すべてのゲーム: 24
The Last Hero of Nostalgaia is a satirical action-adventure, brought to life by a twisted and wicked tale. Featuring hard but fair combat, *full character customization, unique battle armor and engaging narrative mechanics rich in lore, Nostalgaia plunges you into almost certain death at every turn.
Batman is dead. It is now up to the Batman Family - Batgirl, Nightwing, Red Hood, and Robin - to protect Gotham City.
Humanity is fighting a losing battle against the virus. Experience a post-apocalyptic open world overrun by hordes of zombies, where your parkour and combat skills are key to survival. Traverse the City freely during the day, but watch the monsters take over during the night.
Gather your heroes and journey beyond the dungeons of Castle Hammerwatch to explore a pixelated world like never before. Aid King Roland’s resistance while helping villagers along the way. Battle beasts, finish off hordes of the undead, and face the forces of evil.
Embark together on your fantasy adventure! Set hundreds of years in the future on the distant planet of Aida, the shared open-world RPG, anime-infused sci-fi adventure Tower of Fantasy now is officially available on Steam.
Plunge into "Maurice: Predator's Nest". A survival game where you're either a cunning survivor or a fearsome predator in a dark, treacherous world. Outwit or hunt in this thrilling battle for survival.
Transform from a featureless nobody into a SLUG, a GHOST and a DRAGON in this new take on Action RPGs from the creators of Guacamelee! Discover 15+ distinct Forms, mix-and-match their abilities, clear evolving dungeons and... SAVE THE WORLD!?
Join Sonic in the high-speed adventure of a lifetime across a colorful interstellar amusement park. Color the Universe in Sonic Colors: Ultimate!
Fight your way through an exciting action-adventure game, inspired by classic dungeon crawlers and set in the Minecraft universe!
It's exactly what it sounds like! Have you ever wanted to be a tree? Do you like odd numbers? How about multiplayer, weather, seasons and more!? Well then this is the game for you! Come on down to a place where you will never want to leaf. Relax and be the best tree you can be. 1-250 players.
Muck is a survival-roguelike. Collect resources, find items & build a base to survive for as long as you can.
Embark on the craziest journey of your life in It Takes Two. Invite a friend to join for free with Friend’s Pass and work together across a huge variety of gleefully disruptive gameplay challenges. Winner of GAME OF THE YEAR at the Game Awards 2021.
Become the Blade that Destroys Demons!
Join Renata as she adventures across a world of mystical ruins with the titular FROGUN! Frogun is an old-school platformer with the soul of the PS1/N64 era, in which your frog-shaped grappling hook is a your best friend!
WARNING: This game contains puns, dad jokes, flappy-bird-like-arcade-minigames, breaking of the 4th wall and jabs directed at tryhard-overly-serious-RPGS. Do not play if you hate FUN or would not like to strap in for a Hilarious quest for The Legendary Villain-Beating Artifact™.
Hidden Deep is an atmospheric sci-fi action game heavily inspired by Aliens, The Thing, and Half-Life. Explore, climb, swim, scan, blast and shoot your way through dangerous missions in a huge sub oceanic mining and research facility. Fear the horrors that lurk below…
Aeterna Noctis is a challenging metroidvania that majestically combines action, exploration and adventure. With 2 game modes and difficulty based on action or the exclusive Noctis mode where a level of difficulty is added in precision platforming never seen in the metroidvania genre.
The Dominion takes no prisoners! Fight for your survival in the unforgiving terrains that surround you, strengthen your hero through slaying dangerous creatures, gather a group of allies and bring the battle to Darza in this fast-paced roguelike cooperative bullet-hell MMO!
From the team that brought you Arizona Sunshine® comes an epic VR action FPS with intense co-op gameplay at its core. Team up with friends and take on a hostile VR world filled with ferocious undead--mutated and twisted by the relentless cold.
Face your friends in UpGun! Use each round to accumulate skills and overtake your opponents in this crazy deathmatch!
DEATHLOOP is a next-gen FPS from Arkane Lyon, the award-winning studio behind Dishonored. In DEATHLOOP, two rival assassins are trapped in a mysterious timeloop on the island of Blackreef, doomed to repeat the same day for eternity.
Carrier Command 2 is the real-time strategy game that puts you in command of a futuristic carrier capable of deploying a vast array of aircraft and amphibious units. Compete against AI or human players and hop into every single vehicle to take matters into your own hands!
Aragami 2 is a third person stealth game where you play as an assassin with the power to control the shadows. Join the shadow clan and fight the invader armies to protect your people.
Source of Madness is a side-scrolling dark action roguelite set in a twisted Lovecraftian inspired world powered by procedural generation and AI machine learning. Take on the role of a new Acolyte as they embark on a nightmarish odyssey.