可以和朋友在线一起玩的动作（Online Co-Op）游戏共 1,237 款，包括Freestyle 2: Street Basketball、PixelJunk™ Nom Nom Galaxy和Gauntlet™ Slayer Edition。
全部游戏: 24
Freestyle 2: Street Basketball is a fast paced online arcade basketball game. Create your own unique player and compete in the online street league! Use variety of b-ball moves and customize your player! Team up with the best street ballers online and rise to the top!
在 PixelJunk Nom Nom Galaxy 中，和最多三位在线好友或一位本地伙伴经营汤品公司。探索外星球、自动化生产，并与竞争企业争夺市场。
The classic Gauntlet 4-player co-op action gameplay returns in a completely new experience! Battle the endless hordes of foes as you and your friends fight for treasure and glory via both local and online co-op multiplayer. Invade the Darkness!
Lethal League is a competitive projectile fighting game where you have to hit an anti-gravity ball into the face of your opponent to win. The ball speeds up with every strike, up to explosively extreme velocities. Play intense local matches with friends and foes, challenge yourself in the singleplayer mode or battle it out online.
Screencheat is a ridiculous competitive split-screen first-person shooter where everyone is invisible, so players are forced to look at each other’s screens to win. Supporting both local and online multiplayer, combat in Screencheat is fast and furious with a wide variety of one-hit kill weapons.
Multiplayer based, first person enabled, action packed and skill demanding shooter set in the Wild West times. A unique combination of non stop action and slow but powerful weaponry.
BlazeRush is a dynamic arcade racing survival game with no health, no levelling and no brakes! You can assemble a team of friends to play in local or online multiplayer, choose a car to your taste and chase, blow up and cut off! Adapt your style and tactics to new enemies, obstacles and tracks.
The Trine heroes in full 3D. Explore a fairytale world of breathtaking sceneries and enchanting creatures, solving puzzles as wizard, knight and thief, alone or together in online or local co-op.
“A real Gem” – Destructoid at E3 “Offers a different experience for zombie game veterans” – Co-Optimus“Has a lot more going for it than smashing brains and gory, red goo ... With a surprisingly deep crafting system” – GamesRadarYou're shipwrecked on an isolated island, a desperate castaway in a total freakshow world. How will you survive?
最多六人在线推进 Path of Exile 的怪物横行战役，各自打造角色并挑战丰富的终局内容。
Experience true combat gameplay in a massive military sandbox. Deploy with a wide variety of single- and multiplayer content, a massive arsenal of modern weapons and vehicles, and limitless opportunities for content creation. Authentic, diverse, open - Arma 3 sends you to war.
Elsword is a free-to-play, online action RPG that uses classic side-scrolling game mechanics in an immersive manga inspired world.
LEGO® Marvel™ Super Heroes features an original story crossing the entire Marvel Universe. Players take control of Iron Man, Spider-Man, the Hulk, Captain America, Wolverine and many more Marvel characters as they unite to stop Loki and a host of other Marvel villains from assembling a super-weapon capable of destroying the world.
PAYDAY 2 is an action-packed, four-player co-op shooter that once again lets gamers don the masks of the original PAYDAY crew - Dallas, Hoxton, Wolf and Chains - as they descend on Washington DC for an epic crime spree.
Lara Croft and the Temple of Osiris is the sequel to the critically-acclaimed Lara Croft and the Guardian of Light, and the first-ever four-player co-op experience with Lara Croft.
“METAL SLUG 3”, the masterpiece in SNK’s emblematic 2D run & gun action shooting game series, still continues to fascinate millions of fans worldwide to this day for its intricate dot-pixel graphics, and simple and intuitive game controls, heads out to the Steam gaming platform!
Darkness is coming. How long can YOU survive? Build your base by day, defend it by night. Play in online or local co-op. Stay alive as long as you can.
Two years ago, a group of young teenagers found themselves trapped inside their school. They suffered through the longest night of their lives, chased by abominable creatures created by their principal. Some of them survived that terrible night, while others perished.
CastleMiner Z is an infinite world filled with deep places to explore, and horrifying monsters to slay. Build structures out of blocks, craft weapons and tools from raw materials, and explore the vast and frightening world around you.
Experience the insane antics of Saints Row IV. The Saints have gone from the Penthouse to the White House - but Earth has been invaded and it’s up to you to save it with an arsenal of superpowers and strange weapons, in the wildest open world game ever.
Awaken as an unstoppable warrior and battle alongside your friends in this story-driven free-to-play online action game
最多三人在线或本地合作，体验全部20个关卡。组合三位英雄的能力，一起破解物理谜题、应对战斗。