可以和朋友在线一起玩的动作（Retro）游戏共 401 款，包括Deathmatch Classic、Ricochet和Half-Life。
全部游戏: 24
Enjoy fast-paced multiplayer gaming with Deathmatch Classic (a.k.a. DMC). Valve's tribute to the work of id software, DMC invites players to grab their rocket launchers and put their reflexes to the test in a collection of futuristic settings.
A futuristic action game that challenges your agility as well as your aim, Ricochet features one-on-one and team matches played in a variety of futuristic battle arenas.
Named Game of the Year by over 50 publications, Valve's debut title blends action and adventure with award-winning technology to create a frighteningly realistic world where players must think to survive. Also includes an exciting multiplayer mode that allows you to play against friends and enemies around the world.
One of the most popular online action games of all time, Team Fortress Classic features over nine character classes -- from Medic to Spy to Demolition Man -- enlisted in a unique style of online team warfare. Each character class possesses unique weapons, items, and abilities, as teams compete online in a variety of game play modes.
基础版支持双人本地合作；Synchrony扩展本地人数至4人，并加入最多8人的在线模式。每一步都要跟上音乐节拍。
Defend against waves of alien monsters in this unique roguelike action miner. Dig for resources, collect useful gadgets, and upgrade equipment to increase odds of survival – just hurry back before your dome is destroyed!
Polarity takes it to the next level, demanding all of your wits and reflexes. Full-featured local co-op campaign.
Phantom Breaker: Battle Grounds! Enjoy fast and frantic arcade-style beat 'em up gameplay with cute characters. Beat up hordes of weird enemies with awesome special attacks. Local co-op and PVP supported for up to 4 players!
The original epic introduction to the eternal KUNG FURY beat ‘em up saga. New stages, and the Hackademy. Both THE ARCADE STRIKES BACK and the A DAY AT THE BEACH campaign.
AROUND EVERY CORNER. Face against stealthy antagonists that will take advantage of your expectations.
IMPACT POINT! – An ultra satisfying, fast paced, 2-4 player, arena based, multiplayer, top down 2D shooter. Grab what you can and battle it out with 2-4 players to be the last man standing in a game heavily inspired by retro and vaporwave shooters.
A toxic waste spill finds its way into the water supply, causing the recently deceased to rise from their graves. Now it's up to you to blast your way through the hordes of undead if you're going to escape the city. On the way to your rescue, you'll search stores and houses for supplies, and trade with other survivors.
BRO-TACULAR! Legendary martial artists, Billy and Jimmy Lee return in this creative re-imagining of the classic beat ‘em up, Double Dragon Neon. Fight your way through countless henchmen including Linda and Abobo on your way to rescue the love of your life, Marian!
Retro Arcade Rally Racing... in Parking Garages?!? Precision driving with tight simple controls and arcade physics, all in a Sega Saturn style presentation
Saviors brings the best bullet hell experience you can find on Steam. Play through 18 challenging stages in this ultimate test of tactics and reflexes.
Vanguard Princess is a classic 2D fighting game that features an all-female cast each with its own unique fighting style. Choose from ten girls and pair them with a powerful partner to form an unstoppable team. Navigate their journeys in Story Mode or engage in head-to-head battles in Versus Mode.
Westerado: Double Barreled. When your family is murdered by a mysterious desperado, you set out into the world to take revenge. Take control of your own fate and that of others, all using your trusty shooting iron.
与最多三位好友在线或同屏执行限时任务，改装武器并逐步晋升军阶。分屏视野、重复路线和装备收集会塑造每一次出击。
Chip destructible bosses apart pixel-by-pixel in this twin-stick bullet-hell shooter.
Fire up your ray guns, crystal swords, and laser whips, and get ready for thrills and chills! With three incredible movie stars playing out decidedly B-level sci-fi exploits, Dick Starspeed, Scarlet Nova, and Robot will have you ready to jump off the side of the tower—right into adventure!
HYPERFIGHT is a fighting game where every hit is lethal, and every win counts. Lightning-fast 1-on-1 duels!
Eugene must battle aliens and the undead in search of a truck rim, as it seems to be his ticket home.
Survival horror with roguelike elements. Explore randomized levels with different items and entities while trying to maintain your thirst, hunger, and sanity, ensuring a new experience every time. Play alone or with up to TEN friends online! Cross-platform multiplayer with Nintendo Switch.