可以和朋友在线一起玩的免费开玩（Online Co-Op）游戏共 348 款，包括My Free Farm 2、Armored Warfare和World of Tanks Blitz。
全部游戏: 24
Are you ready for a very special challenge? Then get ready to discover My Free Farm 2! This simulation is a captivating blend of farm and tycoon game. Bring in the harvest, keep animals and expand your property. Download My Free Farm 2 now!
Wage war against players from around the world with an unstoppable arsenal of 300+ powerful armored combat vehicles. Compete in PvP tank combat, complete co-op missions, and crush your enemies on breathtaking maps, from scorching deserts to neon-drenched urban jungles.
Blow off steam and tank turrets in a free-to-play online 7v7 tank shooter! Drive hundreds of tanks, from museum classics to "did-that-ever-exist?" specials, in quick 5 to 7-minute brawls packed with metal mayhem. Play solo or team up with a friend and enjoy smooth action even on modest hardware!
In the tycoon game "Wauies – The Pet Shop Game," you run your own pet store. Prove your managerial skills, build pens, take care of cats, dogs, rodents and fish, fulfill your customers' wishes and expand your pet store. Play now!
Become a hero, build your own Hide-Out and start by saving your neighbourhood. Level up your skills, collect incredibly weird superhero gadgets, and join a superhero team to save the world!
在线或通过局域网，与朋友合作挑战相连的《半条命》战役和大量社区地图。救起队友、破解地图谜题，一起向前推进。
Tom Clancy's Rainbow Six Siege is an elite, tactical team-based shooter where superior planning and execution triumph.
DMO is MMO featuring the ever-popular Digimon franchise. This long awaited game will feature a deeper RPG experience, enhanced graphics and adrenaline-pumping real-time combat. Both new and long-time Digimon fans can now immerse themselves into this new epic adventure with their very own Digimons.
Tanki Online is the free-to-play MMO-shooter with real-time PvP-battles. Throw yourself into furious tank battles shoulder to shoulder with other living players and master your skills – destroy enemy tanks, customize your futuristic armored vehicle and compete with tankers from all over the world.
Tabletopia is a sandbox virtual table with high-quality board games and ready setups. Already 2,400+ games and counting! Play how you want with whom you want: guests don’t need accounts to play. Or make your own games, no programming skills required.
Step into the microscopic world of Mitos.is! Eat or be eaten—become the ultimate cell in a highly addictive multiplayer game. Diverse modes, daily tournaments, guilds, and gear await! The BEST game of 2015 is back!
Teeworlds is a free online multiplayer game, available for all major operating systems. Battle with up to 16 players in a variety of game modes, including Team Deathmatch and Capture The Flag. You can even design your own maps!
Pool Nation FX, is a seriously fun Pool & Snooker Sim! A visually stunning billiards simulation with the critically acclaimed POOL NATION physics engine. Play 8 Ball, 9 Ball, Snooker, Killer & more, unlimited Career modes with customised difficulty levels, Trickshots, Local and Online Multiplayer, spectate live matches and feel...
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!
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.
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。
Elsword is a free-to-play, online action RPG that uses classic side-scrolling game mechanics in an immersive manga inspired world.
Awaken as an unstoppable warrior and battle alongside your friends in this story-driven free-to-play online action game
The Cozy MMO where adventure and home share the same world. Explore a vast fantasy realm, battle monsters, master crafting and gathering, build a home, and grow a village with friends old and new—free to play.
PlanetSide 2 is an all-out planetary war, where thousands of players battle as one across enormous continents. Utilize infantry, ground and air vehicles, and teamwork to destroy your enemies in this revolutionary first-person shooter on a massive scale.
和朋友一起进入 Realm of the Mad God Exalt，参加人潮涌动的在线首领战、探索分支地牢，并从19个职业中选择。角色阵亡后会永久消失。
DC Universe Online is a Free-to-Play, massive multiplayer online action game set in the popular DC Universe. Become one of a new breed of Heroes or Villains and wield incredible powers as you go to war with legendary characters such as Batman, Superman, Lex Luthor and The Joker.
Dive into a world of epic adventure! Create your perfect hero thanks to a uniquely customizable class system. Collect, craft, and customize your gear. Go it alone or group up to challenge dungeons, raids, dynamic open-world content, and your fellow players.
与幸存者队友合作，搜寻武器并封堵房间，抵挡玩家操控的僵尸。这是一款在线 PvP 游戏，每支队伍内部都需要协作。