1,793 Action · Online co-op games your group can play together online, including Bombergrounds: Reborn, Arcadegeddon, and Elven Assassin.
All games: 24
BOMBERGROUNDS: Immerse in a free-to-play massive multiplayer action-packed arena inspired by classic bomber games. Dash, bomb, bat, and explode your way to victory. Your realm of relentless arcade action is just a click away—dive in and rule the grounds!
Rise up and play with up to three friends in this ever-evolving cooperative multiplayer, roguelite shooter. Explore multiple biomes, mini games, find hidden chests, and defeat numerous enemies and bosses.
Take a bow and kill hordes of orcs in the epic town defense game. You can play alone to conquer the leaderboards or unite with other assassins in online co-op mode. PS. Be careful to avoid massive axes thrown at you by orc warriors.
From the developers of the Guns, Gore and Cannoli franchise comes a new 2D run & gun platformer: Warhammer 40,000: Shootas, Blood & TEEF! Spearhead an Ork invasion, destroy the hive city and kill your warboss! ‘Ere we go!
Batman is dead. It is now up to the Batman Family - Batgirl, Nightwing, Red Hood, and Robin - to protect Gotham City.
Humanity is fighting a losing battle against the virus. Experience a post-apocalyptic open world overrun by hordes of zombies, where your parkour and combat skills are key to survival. Traverse the City freely during the day, but watch the monsters take over during the night.
Blast through a cursed nightmare solo or with up to 3 friends. A retro-inspired FPS where looter shooter weapons meets boomer shooter chaos and rogue-lite elements.
Teenage Mutant Ninja Turtles: The Cowabunga Collection contains thirteen prior released classic games. This collection is a great place for gamers to experience these popular titles on Steam.
Crab Game is a First-Person Multiplayer game where you play through several different minigames based on children's games, until only one player stands victorious.
Bravery and Greed is a beat 'em up, roguelite, dungeon brawler for up to four players. Choose from four classic fantasy classes, engage in a deep robust combat system, and play a variety of co-operative and competitive game modes with friends via local, online or both. Get rich, or die trying!
The Riftbreaker is a solo or Co-op base-building, survival game with Action-RPG elements for up to 4 players. Hack & slash countless hordes of enemies. Build up your base, craft powerful weapons and research new inventions to survive.
Knights of Braveland is a cooperative beat'em up action game with a generated story. You will hack, slash, and smash your way to victory. And with your friends it is much more fun. Play local or online.
The cataclysmic conclusion to the Total War: WARHAMMER trilogy is here. Rally your forces and step into the Realm of Chaos, a dimension of mind-bending horror where the very fate of the world will be decided. Will you conquer your Daemons… or command them?
GTFO is a hardcore cooperative horror shooter that throws you from gripping suspense to explosive action in a heartbeat. Stealth, strategy, and teamwork are necessary to survive in your deadly, underground prison. Work together or die together.
Embark together on your fantasy adventure! Set hundreds of years in the future on the distant planet of Aida, the shared open-world RPG, anime-infused sci-fi adventure Tower of Fantasy now is officially available on Steam.
The Last Hero of Nostalgaia is a satirical action-adventure, brought to life by a twisted and wicked tale. Featuring hard but fair combat, *full character customization, unique battle armor and engaging narrative mechanics rich in lore, Nostalgaia plunges you into almost certain death at every turn.
Hunt, survive, build and lead in the harsh Middle Ages: Create your own Medieval Dynasty and ensure its long-lasting prosperity or die trying! Play alone or team up with friends to enjoy the ultimate medieval experience.
Use Nukes, Electricity, Heat Rays and powerful Minions in this wave-based first person shooter providing endless hours of Ghost-slaying entertainment, solo or Co-Op. Only Ghosts stand in the way of your invasion of Earth.
Serious Sam: Siberian Mayhem is a new stand-alone expansion to the world of the classic FPS series. Join the fight against Notorious Mental on a journey through the wild lands of Russia, and find your way through this lost chapter of Sam Stone's adventures.
Transform from a featureless nobody into a SLUG, a GHOST and a DRAGON in this new take on Action RPGs from the creators of Guacamelee! Discover 15+ distinct Forms, mix-and-match their abilities, clear evolving dungeons and... SAVE THE WORLD!?
SCP: 5K is a co-op or singleplayer tactical horror FPS project that puts players in the midst of a conspiracy where the SCP Foundation has turned on humanity. Enjoy Early Access as we continue to work towards a completed full release of the project!
Perfect Heist 2 is a round-based online game, where robbers try to hide in plain sight while robbing a bank without being noticed by the cop team!
Ghost Exile - is a cooperative horror from 1 to 4 players: when hunting for ghosts, you need to determine the type of ghost, carry out a ritual of exorcism and then the ghost can no longer harm anyone. Be careful! Hasty conclusions can lead you to a sad outcome.
Plunge into "Maurice: Predator's Nest". A survival game where you're either a cunning survivor or a fearsome predator in a dark, treacherous world. Outwit or hunt in this thrilling battle for survival.