オンラインでみんなと遊べるアクション（Side Scroller）ゲーム248本。Aeterna Noctis、Young Souls、HUNTDOWNなど。
すべてのゲーム: 24
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.
Young Souls is a gorgeous 2D brawler meets story-rich action RPG. Fight hordes of belligerent goblins, level up with hundreds of weapons and accessories, explore, and journey between worlds, as rebellious twins battle their way to save their foster father.
In the mayhem-filled streets of the future where criminal gangs rule and cops fear to tread, only the bounty hunters can free the city from the corrupt fist of felony. Lay waste to the criminal underworld and make a killing in this hard boiled action comedy arcade shooter.
LOST EPIC is a 2D side-scrolling action RPG about a war between gods and humanity. The player becomes the deity-defying knight, God Slayer, and explores the world known as Sanctum to bring the Pantheon of Six to their knees.
A hard-hitting action packed beat ‘em up in the vein of classic arcade titles. Featuring stunning pixel art and a thumping soundtrack with exclusive tracks from Utah Saints! Brawl with bad dudes and tough girls as you fight through dangerous environments.
A cosmic turbulence caused the 2D Platformer and the Top-Down Puzzler dimensions to merge! Switch between Toodee and Topdee and their unique perspectives to overcome hard-as-nails challenges, solve mind-melting puzzles and defeat huge bosses.
Monster taming meets metroidvania. Collect, train and battle monsters in a lovely side-scroller pixel world.
Spelunky 2 builds upon the unique, randomized challenges that made the original a roguelike classic, offering a huge adventure designed to satisfy players old and new. Meet the next generation of explorers as they find themselves on the Moon, searching for treasure and missing family.
Amongst the best beat’em up series ever created, jammin’ ‘90s beats and over the top street fighting, the iconic series Streets of Rage comes back with a masterful tribute to and revitalization of the classic action fans adore.
Soldat is a unique 2D (side-view) multiplayer action game. Soldiers fight against each other in 2D battle arenas using a deadly arsenal of military weapons, across 7 default game modes.
Koji Igarashi and Inti Creates are back with more retro sword-and-whip action! Curse of the Moon 2 brings classic 2D action and a dark, 8-bit aesthetic together with modern playability.
The true rebirth of iconic beat 'em up genre in vein of old-school video games! As a simple Chinese fisherman Wei Cheng you have to avenge the death of your friends and family slaughtered in a pirate raid at your peaceful village.
Shoot your way through the pages of an ever-changing comic book in this fast-paced roguelike. Play solo, in local or online co-op, expand your weaponry, and upgrade your hero with each run. All that to find out why has your creator lost his faith in you and to prove him wrong.
A physics-based puzzle platformer in breathtaking 2.5D. A haunted prince's nightmares are leaking into the waking world — chase him down as wizard, knight and thief, solving puzzles of fire, water, light, magnets, electricity and more. Play solo or with up to three friends, online or in local co-op.
Mega Man Zero/ZX Legacy Collection brings together six classic titles in one game: Mega Man Zero 1, 2, 3 and 4, as well as Mega Man ZX and ZX Advent. The collection also features Z-Chaser, an exclusive new mode created just for this set of games.
Bloodstained: Ritual of the Night is an exploration-focused, side-scroller action RPG by Koji Igarashi. Play as Miriam, an orphan scarred by an alchemist's curse that slowly crystallizes her body. Battle through a demon-infested castle and defeat its master to save yourself, and all of humanity!
• Over-the-top combat with combos and hard-hitting morph attacks • Wild, varied gameplay sequences for all types of gamers • Hand-drawn animation feels like playing a cartoon • Drop-in couch co-op for three players
Dragon Marked For Death is a 2D side-scrolling action RPG game where up to 4 players can play together in online multiplayer. The characters, known as the Dragonblood Clan, have forged a pact with the Astral Dragon, which granted them special new powers.
I Wanna Be The Creator是一款可以自制关卡的IWBTG同人游戏，在里面你可以体验到各种千奇百怪的关卡，同样也可以创作出属于你自己的关卡。
There's trouble once again in River City, and this time only the girls can save the day! Using a variety of attacks, weapons, and items, these hot-blooded heroines are ready to teach the city’s lowlifes a lesson - either solo or in 2-player co-op! It’s an old-school rumble for a new generation!
The Takeover is a side-scrolling beat'em up inspired by 90's classics such as Streets of Rage and Final Fight. Battle solo or alongside a friend in local co-op while listening to awesome tunes from Little V Mills, Richie Branson, James Ronald and industry legend Yuzo Koshiro!
Mutant scum never learn! Blaster Master Zero makes its Steam debut! Blaster Master Zero is a 8-bit style top-down & sideview 2D action-adventure game that hearkens back to the golden age of the NES. The game features new gameplay elements such as improved gameplay, and a more robust scenario.
Infected Shelter is an ultra-violent rogue-lite post-apocalyptic beat'em up. Singleplayer and co-op for up to four players.
Climb a surreal mountain on a pogo stick and make friends along the way.