可以和朋友在线一起玩的在线合作游戏共 2,829 款，包括Outlive 25、Tap Tap Loot和ATMOSFAR。
全部游戏: 24
Build your base, prepare your troops, and face your most epic battle yet in this old-school real-time strategy game. Choose between two factions, test your skills in three epic campaigns and engage in online battles with up to 16 players simultaneously.
The world is under attack, and every tap fights back. Each keystroke unleashes your cute cat hero, smashing enemies and showering you with loot. Dive into a never-ending desktop expedition with friends or solo. Tap. Tap. Loot.
Uncover the fate of humanity's final outpost as you survive and explore a thrilling world of floating islands. Brave the skies on your own or assemble a squadron of friends, and scavenge scrap to engineer and upgrade flying vessels, bringing your airship along for the journey.
Command the legendary gunship in a high-octane action-roguelite! Engage insurgents with devastating firepower in ever-changing missions. Upgrade your arsenal, adapt to dynamic challenges, and survive relentless waves of enemies. Every run offers new tactics and chaos as you dominate the skies.
A loot-driven action role-playing game (ARPG) crafted by a solo loot enthusiast. Switch classes anytime, with hundreds of random affix combinations for gear stats, a unique forging system, and tough bosses, rifts, ruins, and trials awaiting your challenge.
Build the ultimate waterpark paradise in this classic tycoon simulation game! Design & customize water slides, pools, and saunas to fulfill your guests' needs. Combine creativity, strategy, and management to make a splash in the world of water parks and become the ultimate Aquapark Tycoon!
A 1-3 player co-op puzzle horror game set in an accursed megastore. Work together to decode the store's twisted logic, and find a way out before the lurking horrors doom you to shop forever.
Eterspire is a cozy old-school MMORPG where skill and dedication define your progression. Grind for gear, explore the vibrant world of Aetera, discover new content every two weeks, and join a growing, welcoming community in a free-to-play MMO with PC and mobile crossplay.
Plunge into high-stakes punishment platforming in JUMP KING QUEST! Explore alone or fall together in dynamic online climbing action as you fight your way upwards on an unhinged quest to The Smoking Hot Babe at The Top. In this world, every ledge is a battlefield…
Dungeon Brawls is a 1–4 player action roguelike. Choose from dozens of heroes, combine hundreds of skills and relics, and create powerful builds as you fight through waves of enemies and bosses—solo or with friends.
Take over the gas station and convenience store at a roadside rest area and expand by purchasing new businesses. Manage a living world shaped by dynamic economy and random events. Upgrade your facilities, satisfy your customers, and play solo or with friends.
Step into Guild Wars Reforged, the award-winning online roleplaying game enjoyed by millions, now re-energized with system enhancements and Steam Deck verified. Experience the complete saga— from the fall of Ascalon to the desperate stand against Nightfall. Your adventure is just getting started!
Embody your inner power-tripping TSA agent and hunt down other players attempting to blend in and smuggle contraband past you. Control the crowd and your problematic K9 with authoritative voice commands, and use "compliance devices" to apprehend smugglers making mischief or hiding in plain sight.
In the third game in the dark samurai action RPG series Nioh, you will need to use both Samurai and Ninja combat styles in your battles against formidable yokai as you explore a thrilling open field.
多职业战争策略手游，你可以在每个赛季中体验镇军、青囊、奇佐、天工等六大职业，在沙盘中施展多样的职业天赋与职业技能去影响补给、战术、地形、局势，与盟友打出多种精彩配合与战役，或火烧连营八百里，或奇袭粮道以弱胜强等等，你可以通过谋略感受千变万化的三国沙盘战场，让策略游戏从此不再是枯燥的调兵遣将。 此外，《三国：谋定天下》在长线运营和公平的游戏生态基础上，做到不卖资源、不卖加速、不锁卡、没有VIP。这，将带给你前所未有的SLG沙盘乐趣和激动人心的游戏体验！
Play a local Quiz game with your friends and family. Create your own Quiz using the Party Quiz Constructor or use the Steam Workshop to download one of the Quizzes made by the community. Test your knowledge!
Roadside Research is a 1 to 4 player co-op gas station simulator. Except you’re aliens. And undercover. Do very human things like restocking shelves while preparing for the invasion. Just don’t get caught.
Everwind is a novel take on RPG and Sandbox Survival genre in First-Person-Perspective. Embark on the adventure with your friends - Build a base on a flying island-ship, gather resources, craft, loot, and fight while you rise above the clouds to uncover the mysteries of this world!
A unicycle, a bomb ready to blow, and sausages struggling to balance! Cooperate with your friends or blow them up in this 2-4 player physics-based chaos game! Reach the summit before the bomb goes off. Don't fall, don't explode, and try to stay a sausage!
《墨仙箓》是一款融合修仙题材与多人社交的文字挂机游戏。在这里，你可随时放置修炼，于日常忙碌、工作学习中悄然成长，亦可与其他道友协作共闯秘境、交易资源、切磋较量。挂机历练途中，不仅可积累修为与法宝，更可能遭遇机缘事件，瞬间改变仙途命运！
Korea. IL-2 Series is a next-generation flight simulator set during the Korean War. Climb into the cockpit of early jet fighters and shape the outcome of legendary aerial battles.
A 1 to 4 player Y2K dream-exploration game. Free your imaginary friends trapped to eternal sleep by the goddess Mama. Collect cursed items and use weapons to face the monsters in Mama's dreams.
Zombie Assault: Resurgence is an intense, action packed top-down shooter, featuring deep RPG elements. Customise your loadout with unique upgradeable weapons as you gear up to take on hordes of enemies. Play solo or team up in co-op with up to 4 players.
StarRupture is a first-person open world base-building game with advanced combat and tons of exploration. Play alone or in a group on this sublime and ever-changing planet, extract and manage resources, create your complex industrial system and fight off hordes of alien monsters.