3,446 Action games your group can play together online, including POSTAL Redux, Therian Saga, and Ratty Catty.
All games: 24
POSTAL Redux is a high definition remake of the classic dark and surreal twin-stick isometric shooter. Take control of The POSTAL Dude as he fights to survive in a world gone mad with violence.
Therian Saga is a MMORPG that tries to stand out of the crowd by offering a compelling storytelling surrounded by a massive mathematical set of rules that define the world your hero will evolve in. It could be said that it borrows elements from old-time MUD games, strategy games and even tabletops RPG.
Ratty Catty is a Multiplayer / CO-OP hide & seek game about the adventures of a domestic cat Catty and hazel dormouse Ratty, who eats the foods in the house, feeds its babies, and lives in a small rat nest.
FRAG LIKE IT'S 1999! TOXIKK plays as if today's military shooters never existed: Designed as a spiritual successor to the FPS giants of the late 90s and early 2ks, TOXIKK carefully evolves their mechanics with modern technology and fresh ideas elaborated with Arena-FPS enthusiasts.
PAC-MAN 256 is the maze that never ends. But the Glitch is coming for you…
Craft unique strategies and outmaneuver your foes in TINY METAL, a turn-based Japanese wargame! With new tactical options, you will command over 16 tactically diverse units, flank, assault, deploy heroes from orbital dropships, and focus the firepower of multiple units to even out otherwise disastrous odds.
Fight through connected Half-Life campaigns and a wide range of community maps with friends online or over LAN. Revive teammates, solve map-built puzzles, and keep your group moving together.
Just Cause 3 Multiplayer mod is a free fan-created project bringing an explosive and highly-customizable multiplayer.
Hail to the Captain! Sail into the heart of the Caribbean in the Age of Piracy - the time of black flags and white skulls, blue waves and golden opportunities. Hoist the Jolly Roger and grab the steering wheel to sail through battles and raids, ransoms and treasures, to become the Crimson King of the Antilles!
Lead the great armies of the Star Wars™ Episode II: Attack of the Clones saga in intense real-time strategy clashes. Enter the fray as the Galactic Empire, Rebel Alliance, Wookies, Trade Federation, Gungans or Royal Naboo to determine the course of the Galactic Civil War.
Explore a beautiful, vast and ruined world riddled with dangers and lost technologies.
Take on a 15-level arcade shooter campaign with up to 16 online players. Serious Sam VR pairs huge enemy waves and dual-wielded weapons with configurable co-op rules, but every player needs a VR setup.
Based on the community award-winning Doom2 mod with the same name by the same creator, UNLOVED is reimagined in the Unreal Engine 4 to bring forth the unspeakable terror in new ways. Play coop with your friends, increase your skills, mod your weapons and face the horror that this unearthly place holds...
The game that all One Piece fans have been waiting for. One Piece Burning Blood is a dynamic and colourful new fighting game featuring the world’s most famous pirate: Monkey D. Luffy.
The Old World is yours to command. Lead Legendary Lords in a combination of turn-based campaign and magically charged, strategic real-time battles, and decide the fate of your chosen race in a fight against Chaos.
Tom Clancy's Rainbow Six Siege is an elite, tactical team-based shooter where superior planning and execution triumph.
An international hit anime "Attack on Titan" has come to Steam®! Battle is joined between the man-eating Titans and Eren and his companions. Experience the illusion of being in the anime, and controlling the flow of the story. The story from the anime, with a few original twists, is yours to experience!
Dodge, jump, and dash your way through hundreds of terrifying geometric levels and epic bosses. Too tough? Bring your friends!
Force of Nature is a Sandbox game that combines Action, Adventure, RPG, Strategy and Management genres
Call of Duty®: Black Ops III Zombies Chronicles Edition includes the full base game plus the Zombies Chronicles content expansion.
The final episode of the series, "MELTY BLOOD Actress Again Current Code" is now on Steam!
Take on Nuclear Throne’s wasteland with up to three friends in local co-op. Fast runs, shared mutations, and a crowded screen make this a chaotic couch shooter.
Florensia is a Free-to-Play MMORPG and shows you its legendary worlds ashore and at sea with its 3D anime style. Mysterious islands, the great ocean, dungeons, picturesque pirates and dangerous monsters are waiting to be discovered.
DRAGON QUEST HEROES II is a hack-and-slash Action RPG that sends you on a new adventure to restore order to a once peaceful world filled with monsters and battles of epic proportions. Up to 4 players can play in cooperative multiplayer to defeat an unknown threat looming over the Seven Realms!