可以和朋友在线一起玩的Action · Difficult游戏共 442 款，包括Ikaruga、Yet Another Zombie Defense和Risk of Rain (2013)。
全部游戏: 24
Shoot! Dodge! and... Get Hit!? "Ikaruga" is a vertical shoot 'em up that features an unique polarity-switching gameplay. Switch the ship's polarity and "get hit and absorb" enemy bullets! Achieve High Score with the chain bonus!
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.
Deceptively simple. Infinitely complex. LYNE is a minimalist puzzle game that will knot your brain as it calms your soul. Connect the shapes. Fill the board. Lose yourself in the interflowing paths of LYNE.
最多四名玩家可以在本地合作，探索随机生成、可破坏的洞窟。陷阱、有限的工具和共享镜头，让团队配合和活下来同样重要。
In this award-winning platforming adventure, run, jump, and slap through the colorful worlds of the Glade of Dreams, face epic bosses, and team up in 4-player local co-op.
Time moves forward only when you do in the dungeons of WazHack. Think your way out of problems instead of just spamming 'attack' and 'drink healing potion'.
Hero Siege is a fast paced Pixel Art ARPG featuring an expansive roster of unique classes, deep build experimentation, and a player driven economy.
A deep, tactical shoot'em up. With every takedown, you’ll earn cash and xp to upgrade your ship and unlock new abilities. Online and local co-op. Unique versus mode. Realistic physics and water simulation.
Leap into a beloved platforming adventure that moves like a living cartoon. Punch, glide, and explore 60+ levels across the Glade of Dreams, solo or with up to three friends in local co-op.
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。
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。
Take on the role of a hardened career criminal executing intense, dynamic heists in constant pursuit of the next “big score”
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。
Giana Sisters: Twisted Dreams is a blistering hardcore platformer with contrasting worlds.
Choose between different factions, with their own set of expendable soldiers, mechas, and weapons. Protect your brain, mine gold, and destroy the enemy cortex in his bunker complex!
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.
Three years after the conflict in Chernarus, portrayed in the original Arma 2, a new flashpoint explodes in the Green Sea Region. Coalition forces led by the US Army are deployed to Takistan to quickly restore peace and prevent further civilian casualties.
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.
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。
Developed by id Software, and originally released in 1993 and 1994, the definitive, newly enhanced versions of DOOM + DOOM II are available as a combined product.