可以和朋友在线一起玩的动作（2D）游戏共 841 款，包括The Swords of Ditto: Mormo's Curse、Enter the Gungeon和Shift Happens。
全部游戏: 24
Now reimagined and expanded in the new Mormo's Curse update, The Swords of Ditto is a roguelite action RPG that creates a unique adventure for each new hero of legend in the relentless fight against the evil Mormo.
Enter the Gungeon is a bullet hell dungeon crawler following a band of misfits seeking to shoot, loot, dodge roll and table-flip their way to personal absolution by reaching the legendary Gungeon’s ultimate treasure: the gun that can kill the past.
Shift Happens is a cooperative platformer for two. You and a friend shift your mass, throw each other and puzzle your way through four stages of stylized imaginary worlds. Including the occasional backstabbing and taunting. Play with a friend on a couch, online or even special singleplayer levels.
Shoot, slice and surf on zombies by yourself or with friends. Fight overwhelming amounts of zombies and other monsters summoned by an evil wizard (ooOooOOOo spooky) in an early 1900s London.
Control a car full of jerks as they explore cities, recruit weird people, rescue dogs, argue with each other, and face gigantic swarms of slow zombies. Randomly generated for a new story and rare events every time you play!
Slash and Dash, raise your army, learn powerful combos and take back your land!
Join the fight and command your worm warriors into battle in the iconic 2D arcade artillery shooter where serious strategy and silly weaponry decide who swims or sinks.
Lost Castle is an action RPG beat'em up with roguelike elements and randomized dungeons for up to four players online and local!
The hit crossover 2D fighter finally makes its way to PC, updated to the latest arcade version for character balancing, added background animations and additional winning poses. It also includes all DLC from the console release, such as additional fighters Homura and Heart, in a single value package.
The legendary bullet-hell shoot-’em-up series has come to Steam! DoDonPachi is ressurected after a Blissful Death with enough modes to satisfy the beginner and the expert player alike. Tonight we dine in bullet hell!
Brain / Out is a multiplayer shooter with a nostalgic post-Soviet feel. Experience dynamic battles and exterminate your enemies with a large arsenal of modern weaponry. Lock'n'load!
Starring a cast of beloved Disney characters, The Disney Afternoon Collection takes you back to a golden era of gaming and afternoons filled with adventure. All six classic games feature new and improved visuals and include filtering options that replicate a retro look and feel.
Cut-throat multiplayer running game that pits 4 players against each other, locally and/or online. Run, jump, swing around, and use devious weapons and pick-ups to knock opponents off-screen! One of the most competitive games you'll ever play.
8Bit Fiesta brings everything you need to the table with its action packed local multiplayer mayhem including a built in drinking game! Choose between a ton of characters and challenge your friends and prove yourself worthy the title "King of the Fiesta".
Ultimate Chicken Horse is a party platformer game where you build the level as you play, placing traps and hazards to screw your friends over, but trying not to screw yourself.
Cryptark is a 2D sci-fi shooter where you take on the role of a heavily armed privateer seeking to earn government contracts by boarding deadly alien space-hulks. It's up to you to strategize a plan of attack, pick an equipment loadout, and destroy the central core to be victorious.
Explore a haunting, punishing island in this stylized 2D action RPG. Salt and Sanctuary combines fast and brutal 2D combat with richly developed RPG mechanics in a cursed realm of forgotten cities, blood-soaked dungeons, and desecrated monuments.
Explore a beautiful, vast and ruined world riddled with dangers and lost technologies.
Play as an exiled 'wum' looking for a new home in this bizarre but charming world, filled with strange creatures, puzzles, monsters and political chaos.
Craft unique strategies and outmaneuver your foes in TINY METAL, a turn-based Japanese wargame! With new tactical options, you will command over 16 tactically diverse units, flank, assault, deploy heroes from orbital dropships, and focus the firepower of multiple units to even out otherwise disastrous odds.
PAC-MAN 256 is the maze that never ends. But the Glitch is coming for you…
Lead the great armies of the Star Wars™ Episode II: Attack of the Clones saga in intense real-time strategy clashes. Enter the fray as the Galactic Empire, Rebel Alliance, Wookies, Trade Federation, Gungans or Royal Naboo to determine the course of the Galactic Civil War.
Serious Sam’s Bogus Detour is an all-new action-adventure in the legendary Serious Sam saga from Hammerwatch developer Crackshell.
An old-fashioned beat 'em up with big doses of adrenaline and trippiness, somewhere between the classic style of Streets of Rage and the ultra-violence of Hotline Miami. Set in a cold, ruthless Soviet Union, Mother Russia Bleeds aims to conjure up anxiety, unease, and drug-addled frenzy.