Original War：和朋友一起指挥一支RTS军队
在Original War中与朋友进行在线或局域网团队对战。专业兵种、基地建设和地图规则让这款复古RTS成为需要共同经营的战场。
1,820 篇评测中 94% 为好评当前玩家: 44US$9.99
Sci-fi：适合一起玩的游戏
可以和朋友在线一起玩的Sci-fi游戏共 703 款，包括Original War、The Red Solstice和Ikaruga。
全部游戏: 24
The Red Solstice
2280 A.D. The last few survivors of a ruined Earth seek a new home: Mars, a planet whose inhabitants didn't take too kindly to outsiders. The Red Solstice is a tense, tactical, squad-based action game. Fight to survive with up to 8 players in co-op, or lead your own squad in single-player mode.
884 篇评测中 71% 为好评当前玩家: 1US$9.99
Ikaruga
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!
2,215 篇评测中 94% 为好评当前玩家: 8US$9.99
Infinity Wars: Animated Trading Card Game
Outplay your opponent with simultaneous turns and commander-driven deck-building in a fully free-to-play PvP experience. Build your deck from 1000+ cards across 8 unique factions, and face opponents on a truly level playing field. In Infinity Wars, skill is the only factor that determines victory!
3,470 篇评测中 77% 为好评当前玩家: 4免费
Viscera Cleanup Detail: Santa's Rampage
Tragedy! Santa; the toy giving folk-hero, and purveyor of fine Christmas goods, has had enough. Endless requests from greedy children wanting more and more every year, tax increases, pressure from elf unions, bills, reindeer!
4,549 篇评测中 91% 为好评当前玩家: 11US$2.49
Saints Row IV: Re-Elected
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.
57,580 篇评测中 87% 为好评当前玩家: 237US$19.99
在 StarMade 中共同建造一片星系
在 StarMade 的太空体素沙盒中，与朋友建造飞船、空间站和势力。在程序生成的宇宙里自定目标，通过服务器进行合作或 PvP。
2,200 篇评测中 66% 为好评当前玩家: 7US$14.99
Warframe
Awaken as an unstoppable warrior and battle alongside your friends in this story-driven free-to-play online action game
687,788 篇评测中 87% 为好评当前玩家: 77,626免费
Super Motherload
Set on Mars in an alternate Cold-War era, Super Motherload is a 1 to 4-player couch co-op digging adventure with storyline by Image Comics' Kurtis Wiebe, a fully voiced cast of Soviet and American characters, and a procedurally-generated world that changes each time you play.
784 篇评测中 77% 为好评当前玩家: 5US$14.99
Signs of Life
Signs of Life is a sci-fi survival sandbox platformer with a combination of procedurally generated and hand-crafted content. You'll explore mysterious locations, mine blocks for resources, and meet strange (and some familiar) creatures, some of which don't even want to kill you and eat your corpse.
717 篇评测中 76% 为好评当前玩家: 12US$14.99
《Sanctum 2》：先建防线，再加入战斗
《Sanctum 2》把塔防建造与第一人称射击结合起来，支持最多四人在线合作战役。你和朋友要守护产氧核心，布置角色装备，并可在完成战役后继续挑战生存模式。
7,460 篇评测中 91% 为好评当前玩家: 16US$14.99
Gunpoint
Gunpoint is a stealth puzzle game that lets you rewire its levels to trick people. You play a freelance spy who takes jobs from his clients to break into high security buildings and steal sensitive data.
10,279 篇评测中 97% 为好评当前玩家: 4US$9.99
Earth 2150 Trilogy
Your heroes and your armies will need strong leadership to take them on a spellbinding odyssey that has everything a gamer’s heart could wish for breathtaking worlds in space, battles against cunning enemies and even downright treason from your own government faction - are you up to it?
456 篇评测中 76% 为好评当前玩家: 8US$4.99
Sonic Adventure 2
Experience two unique adventures featuring both long-time heroes and new and returning villains as they battle for the fate of the world!
23,916 篇评测中 89% 为好评当前玩家: 277US$9.99
PixelJunk™ Shooter
In PixelJunk™ Shooter, you must pilot your spacecraft through a range of cavernous environments in a bid to save the scientists trapped underground. Making your way through the game will rely on your keen sense of observation and the ability to manipulate your surroundings.
251 篇评测中 92% 为好评当前玩家: 1US$8.99
PlanetSide 2
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.
74,972 篇评测中 80% 为好评当前玩家: 615免费
ORION: Prelude：与伙伴并肩对抗恐龙大军
守住发电机，在每波敌人之间购买强化，并邀请最多四位好友加入 ORION: Prelude 原版的五人合作模式。
19,055 篇评测中 76% 为好评当前玩家: 32US$9.99
Natural Selection 2
A fast paced multiplayer shooter that pits aliens against humans in a strategic and action-packed struggle for survival!
8,647 篇评测中 85% 为好评当前玩家: 142US$4.99
Revolution Ace
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.
1,479 篇评测中 70% 为好评当前玩家: 1US$4.99
Sins of a Solar Empire: Rebellion：与好友共治星海
多人模式面向最多十名玩家，包含互联网和 LAN 合作及 PvP 选项；与好友共同建设帝国、对抗 AI 势力，并在六个派系和多种胜利目标之间选择。
10,258 篇评测中 93% 为好评当前玩家: 314US$19.99
Pandora: First Contact
Pandora: First Contact is a science fiction 4X turn-based strategy game on a planetary scale. Our Earth has been exhausted and colonial attempts on other planetary bodies have been in vain. Finally, after decades of exploration, an interstellar probe has brought promise of a new world.
539 篇评测中 61% 为好评当前玩家: 2US$29.99
Awesomenauts：把MOBA变成2D团队乱斗
和最多两位朋友组队，体验3对3平台动作MOBA，沿着机器人兵线推进并摧毁对手基地。
11,825 篇评测中 84% 为好评当前玩家: 69US$19.99
Space Hulk (Classic)
The legendary Space Hulk returns in this epic turn based strategy game. Set in the Warhammer 40,000 universe, an intriguing story of legendary battles and heroic actions unfolds.
1,579 篇评测中 70% 为好评当前玩家: 3US$11.99
ENDLESS Space™ - Definitive Edition
ENDLESS Space™ is a turn-based 4X strategy game, covering the space colonization age in the ENDLESS Universe™, where you can control every aspect of your civilization as you strive for galactic domination.
6,632 篇评测中 78% 为好评当前玩家: 69US$9.99