Serious Sam II：和朋友一起横扫怪物大军
在线或通过 LAN 与朋友并肩挑战色彩鲜艳、武器丰富的 FPS 战役，也可以切换到对战模式。
12,075 篇评测中 89% 为好评当前玩家: 109US$9.99
Online Co-Op：适合一起玩的游戏
可以和朋友在线一起玩的Online Co-Op游戏共 1,871 款，包括Serious Sam II、Dungeon Defenders和Terraria。
全部游戏: 24
Dungeon Defenders：和朋友组队守卫水晶
和最多三位朋友一起布置防线，怪物涌向水晶时再亲自加入战斗。Dungeon Defenders将塔防策略、动作战斗，以及角色和装备的长期养成结合在一起。
12,210 篇评测中 92% 为好评当前玩家: 417US$14.99
《泰拉瑞亚》让每个世界都成为共同冒险
和朋友一起挖掘、建造，探索不断变化的世界。桌面版专用服务器默认提供 16 个玩家名额；搜集更好的装备，再一起挑战 Boss 和入侵事件。
1,248,943 篇评测中 97% 为好评当前玩家: 21,387US$9.99
PAYDAY™ The Heist
Take on the role of a hardened career criminal executing intense, dynamic heists in constant pursuit of the next “big score”
21,933 篇评测中 91% 为好评当前玩家: 73US$9.99
Serious Sam 3: BFE与伙伴并肩迎战外星狂潮
在Serious Sam 3: BFE的埃及战役中合作作战：线上最多16人，或本地分屏最多4人。
21,907 篇评测中 86% 为好评当前玩家: 92US$29.99
DC Universe™ Online
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.
22,118 篇评测中 79% 为好评当前玩家: 1,125免费
Sacred Citadel
Sharpen your axe, string your bow, brew your potions! Ancaria needs heroes like you. Grab your friends to join the resistance!The once peaceful land of Ancaria is in grave danger. The evil Ashen empire has enslaved its population and is using the orc-like Grimmoc to wipe out the Seraphim, who swore to protect it.
619 篇评测中 72% 为好评当前玩家: 1US$9.99
Worms Ultimate Mayhem
Load your weapons and experience a whole new dimension in destructive turn-based cartoon action!
4,334 篇评测中 88% 为好评当前玩家: 60US$2.99
Iron Brigade
Join The Mobile Trench Brigade and protect humanity from the evil Monovision menace!
917 篇评测中 86% 为好评当前玩家: 1US$14.99
LEGO® Star Wars™ III - The Clone Wars™
LEGO Star Wars III: The Clone Wars will allow fans to explore endlessly and laugh their way through the Star Wars galaxy in the most humorous, accessible and action-packed LEGO game to date.
7,244 篇评测中 93% 为好评当前玩家: 95US$19.99
E.Y.E: Divine Cybermancy 的奇异合作任务
和最多三位朋友踏入谜团重重的赛博朋克战役，在枪战、黑客入侵、灵能与角色成长之间切换。
6,312 篇评测中 83% 为好评当前玩家: 18US$9.99
Magicka
Magicka is a satirical action-adventure game set in a rich fantasy world based on Norse mythology. The player assumes the role of a wizard from a sacred order tasked with stopping an evil sorcerer who has thrown the world into turmoil, his foul creations besieging the forces of good.
19,412 篇评测中 83% 为好评当前玩家: 33US$9.99
RIFT
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.
11,667 篇评测中 74% 为好评当前玩家: 182免费
Renegade Ops
Blast your way through enemy lines to defeat Inferno, a madman intent on global domination. Destruction just got awesome.
1,020 篇评测中 85% 为好评当前玩家: 1US$15
Lara Croft and the Guardian of Light
Take control of Lara and her new partner Totec, a Mayan tribesman, and uncover the ancient artifact known as the "Mirror of Smoke" in this all new action adventure game.
3,594 篇评测中 91% 为好评当前玩家: 34US$1.49
Worms Reloaded
Ten years on from Worms™ Armageddon and the turn-based comic mayhem continues in Worms™ Reloaded, an all-new edition available for PC through Steam.
3,384 篇评测中 85% 为好评当前玩家: 77US$3.99
Left 4 Dead 2：四名幸存者，一条逃生路
在 Left 4 Dead 2 中，与最多三位好友突破感染者群，或在最多八人参与的对抗模式中迎战另一支队伍。
824,496 篇评测中 96% 为好评当前玩家: 26,548US$9.99
LEGO® Harry Potter: Years 1-4
Build the adventure from Privet Drive to the Triwizard Tournament and experience the magic of the first four Harry Potter stories – LEGO style! Explore Hogwarts™ School of Witchcraft and Wizardry, learn spells, brew potions and relive the adventures like never before with tongue-in-cheek humor and creative customization that is unique to...
6,479 篇评测中 84% 为好评当前玩家: 133US$19.99
LEGO® Star Wars™ - The Complete Saga
Kick Some Brick in I through VI! Play through all six Star Wars movies in one videogame! Adding new characters, new levels, new features and for the first time ever, the chance to build and battle your way through a fun Star Wars galaxy on your PC!
20,860 篇评测中 96% 为好评当前玩家: 222US$19.99
《Serious Sam HD》：在埃及展开合作枪战
最多16人在线合作闯过街机风格FPS战役，也可以启动Fusion 2017，与最多4人在本地分屏游玩。
7,424 篇评测中 91% 为好评当前玩家: 57
Trine Enchanted Edition：三位英雄，一场合作冒险
最多三位好友可在线或共享屏幕游玩，在15个童话关卡中结合法师召物、盗贼抓钩与骑士力量。
12,866 篇评测中 95% 为好评当前玩家: 43US$14.99
Zombie Panic! Source：在人类猎杀中求生
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。
7,860 篇评测中 83% 为好评当前玩家: 45免费
Garry’s Mod：和朋友一起建造与实验
Garry’s Mod没有内置合作战役。你们可以在在线Sandbox模式中使用物理工具和Workshop内容，一起搭建并测试自己的创意。
1,099,433 篇评测中 96% 为好评当前玩家: 23,764US$9.99