3,441 Action games your group can play together online, including The Riftbreaker, Total War: WARHAMMER III, and Just Act Natural.
All games: 24
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.
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?
Just Act Natural is a hand-crafted online party game where players must hide among NPC characters to avoid detection from the seeker. Compete against your friends in a variety of game modes over a course of different rounds to be crowned the winner!
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.
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.
A fresh take on the classic artillery genre! Fight in physics-based battles online against players around the world. Defeat your opponents with UFO-tracked Cows, gravity-defying Anvils, or a good ol' fashioned Baseball Bat. The choice is yours!
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.
Qwilight is the most feature‑rich free BMS/BMSON player, offering diverse game modes, broad hardware support, rich online features, and easy accessibility. Community‑driven challenges and profile titles expand through the official Discord.
MADNESS: Project Nexus is a third-person Run n' Gun / Beat'Em Up filled with arcade-style action and button-mashing brutality. Gun your way through droves of bad guys in the Story Campaign, or build your perfect killing machine in the neverending onslaught of Arena Mode.
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.
Bone's Cafe is a fast paced, 1-4 Players couch co-op, cooking game. Customize the layout of your kitchen to guarantee your success. Specialize your menu in ingredients and recipes to design your ultimate cafe. Put your necromancy skills to the test and raise your own undead kitchen staff.
Wolfenstein®: Enemy Territory is a free-to-play, objective-based multiplayer World War 2 first-person shooter. Featuring up to 32 players, choose either the Axis or Allies, as you fight across six maps based on real-world battle locations.
Golf Gang is a racing game. It’s a party game. It’s the fastest game of minigolf you'll ever play! Blend precision with speed to dominate in 8-player online mayhem or your solo speed runs.
Join Sonic in the high-speed adventure of a lifetime across a colorful interstellar amusement park. Color the Universe in Sonic Colors: Ultimate!
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!
Ready for the chaos? Stumble Guys is a 32-player, fast-paced multiplayer party royale where players dash, jump, and fall across hilarious obstacle courses in a fun race to be the last one standing.
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.
Amateur or experienced FPV pilot, learn or improve your skills on Uncrashed, the ultra realistic FPV simulator. Simulate your own FPV drone with settings based on real values and you will have the same feeling as a real flight without the risk of breaking your drone!
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.