オンラインでみんなと遊べるアクション（2D）ゲーム841本。Maiden and Spell、Fury Unleashed、Levelheadなど。
すべてのゲーム: 24
Maiden & Spell is a magical girl battle game, set in a cutesy fantasy world. Select from one of eight young ladies to battle 1 on 1 with a friend, or fight your way through a series of bosses and learn the secrets of The Kingdom of Stars.
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.
Deliver those goods, real good - or get turned into scrap trying! Chaotic co-op platforming, genre-bending power-ups, a challenging campaign, and endless community-built levels await, so grab a friend and GO!
Open-world action-RPG in a fantasy realm of cats and dogs. Sequel to the award-winning original, CAT QUEST II lets you play solo or with a friend, as both a cat and dog! Quest in a world filled with magic, defeat monsters and collect loot in a catventure like never before!
Fight, sneak, and hack your way through randomly generated cities. It's like Nuclear Throne meets Deus Ex, mixed with the anarchy of GTA. Rogue-lite meets immersive sim, and goes completely insane.
Children of Morta is a story-driven action RPG game about an extraordinary family of heroes. Lead the Bergsons, with all their flaws and virtues, against the forthcoming Corruption. Will you be able to sacrifice everything to save the ones you care for?
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!
The ULTIMATE collection is here! It all began in ’93, and now, the weapon-based fighting game series that swept the world is ready to be taken home in a new stellar collection! Six NEOGEO titles as well as one mysterious, unreleased game are featured!
A fresh take on top-down shooters with an emphasis on tactics that forces you to make split second decisions. Neutralize criminals, rescue civilians and defuse bombs in Single Player mode or Co-op. And remember - shooting first is not an option!
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.
Shovel Knight is a sweeping classic action-adventure game with awesome gameplay, memorable characters, and an 8-bit retro aesthetic. If you love games with perfect platforming, beautiful art, infectious music, lovable bosses, humor and levity, and real heart… Shovel Knight is for you!
THE COLLISION IS INEVITABLE! THE IMPACT WILL BE UNAVOIDABLE! Cross over between 4 different universes! Play as characters from the BlazBlue, Persona, Under Night In-Birth, and (for the first time ever in a fighting game), RWBY series!
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。
DIVE. DISCOVER. DIE. Crew a submarine with friends in We Need To Go Deeper - a 2-4-player cooperative submarine roguelike set in a Verne-inspired undersea universe.
"Gladiator, gladiator, gladiator, Swords and Sandals, Gladiatorrrrr!"You grew up playing the legendary Swords and Sandals turn based combat game series. These games have been played over half a billion times. Swords and Sandals is nostalgia, Swords and Sandals is life.
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!
Roof Rage is a Martial Arts Platform Fighter featuring epic rooftop battles. Play with up to 8 players locally or 1vs1 online.
Pikuniku is an absurdly wonderful puzzle-exploration game that takes place in a strange but playful world where not everything is as happy as it seems. Help peculiar characters overcome struggles, uncover a deep state conspiracy, and start a little revolution in this delightful dystopian adventure!
The most realistic simulator of the life of a Russian person. Collect pension from birth, collect bottles to survive and become part of an exciting life-long story.
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.
Sparklite is an action-adventure set in a whimsical & ever-changing land. Battle foes using an arsenal of gadgets, guns, & gear. Gear up for adventure in the dangerous corners of the procedurally generated world, take down titans of the mining industry, & harness the power of Sparklite!
Experience your music collection as never before with this intense music driven arcade shooter. Each of your songs will have its own unique ebb and flow based on the music.
Infected Shelter is an ultra-violent rogue-lite post-apocalyptic beat'em up. Singleplayer and co-op for up to four players.