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。Extremely Powerful Capybaras、Dying Light 2 Stay Human: Reloaded Edition、Pixel Royale 3Dなど。
すべてのゲーム: 24
Become the bullet hell as a Capybara in this roguelite adventure! Brave the chaos solo or with up to 4 friends, forge your path through hordes of enemies, gather capy-powering weapons & skills and embrace your inner capybara in this action-packed bullet heaven frenzy!
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.
Action Packed Pixelated FPS! Run, Slide, and Wall-Jump your way through the battlefield! Play Team Deathmatch, Deathmatch, Duels, or Pixel Royale, where the last one standing wins! Compete in leaderboards to win exclusive items and rise to the top of the world! No Pay-To-Win. Forever.
LASERS is a brutally hard multiplayer game about surviving deadly laser mazes. Only one player can win. Will it be you?
Blast through a cursed nightmare solo or with up to 3 friends. A retro-inspired FPS where looter shooter weapons meets boomer shooter chaos and rogue-lite elements.
Qwilight is the most feature‑rich free BMS/BMSON player, offering diverse game modes, broad hardware support, rich online features, and easy accessibility. Community‑driven challenges and profile titles expand through the official Discord.
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.
Teenage Mutant Ninja Turtles: The Cowabunga Collection contains thirteen prior released classic games. This collection is a great place for gamers to experience these popular titles on Steam.
World Racing 2 is back - revamped with a new look! The highly acclaimed racing spectacle makes the streets on your screen glow like never before! The new Champion Edition offers modding and Steam Workshop support. Are you ready to start the race of your life? The roads are waiting for you!
The Riftbreaker is a solo or Co-op base-building, survival game with Action-RPG elements for up to 4 players. Hack & slash countless hordes of enemies. Build up your base, craft powerful weapons and research new inventions to survive.
The cataclysmic conclusion to the Total War: WARHAMMER trilogy is here. Rally your forces and step into the Realm of Chaos, a dimension of mind-bending horror where the very fate of the world will be decided. Will you conquer your Daemons… or command them?
Wolfenstein®: Enemy Territory is a free-to-play, objective-based multiplayer World War 2 first-person shooter. Featuring up to 32 players, choose either the Axis or Allies, as you fight across six maps based on real-world battle locations.
Hunt, survive, build and lead in the harsh Middle Ages: Create your own Medieval Dynasty and ensure its long-lasting prosperity or die trying! Play alone or team up with friends to enjoy the ultimate medieval experience.
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!?
Serious Sam: Siberian Mayhem is a new stand-alone expansion to the world of the classic FPS series. Join the fight against Notorious Mental on a journey through the wild lands of Russia, and find your way through this lost chapter of Sam Stone's adventures.
Amateur or experienced FPV pilot, learn or improve your skills on Uncrashed, the ultra realistic FPV simulator. Simulate your own FPV drone with settings based on real values and you will have the same feeling as a real flight without the risk of breaking your drone!
Step onto the gridiron with Football Simulator and experience the most dynamic and physics-driven football game ever made. Break through tackles, juggle tipped passes, and dive for interceptions to lead your team to victory. Features a fully moddable environment.
Join Sonic in the high-speed adventure of a lifetime across a colorful interstellar amusement park. Color the Universe in Sonic Colors: Ultimate!
Embark on an epic adventure full of whimsy, wonder, and high-powered weaponry! Roll your own multiclass hero then shoot, loot, slash, and cast on a quest to stop the Dragon Lord.
Ghost Exile - is a cooperative horror from 1 to 4 players: when hunting for ghosts, you need to determine the type of ghost, carry out a ritual of exorcism and then the ghost can no longer harm anyone. Be careful! Hasty conclusions can lead you to a sad outcome.
Perfect Heist 2 is a round-based online game, where robbers try to hide in plain sight while robbing a bank without being noticed by the cop team!
SCP: 5K is a co-op or singleplayer tactical horror FPS project that puts players in the midst of a conspiracy where the SCP Foundation has turned on humanity. Enjoy Early Access as we continue to work towards a completed full release of the project!
Soul Guardians is a 2D cross-scroll action RPG game. Hired as a mercenary of the Empire, the protagonist goes on a journey to stop the conspiracy of the Dark Forces Undertaker. Raising unique characters, collecting and combining chain arts to enjoy your own hot action!