1,797 Action · Online co-op games your group can play together online, including Sword Art Online: Hollow Realization Deluxe Edition, Dungeon Defenders II, and Total Miner.
All games: 24
2026, Sword Art: Origin, a new VRMMORPG has emerged. Kirito meets a mysterious NPC and receives a cryptic message. This game is definitively not the same as the one he escaped years ago…
Build defenses, fight through enemy waves, and grow a hero deck together in Dungeon Defenders II’s free online co-op for up to four players.
Total Miner is an open world voxel sandbox game. It is primarily designed for creative RPG game builders, but also has two action/adventure style game modes where you can just jump in and play.
Do you like shooting? Then arm yourself - the world of Bombix awaits you! You will find yourself in the shoes of a small but VERY dangerous fighter, gather together a team of thugs and show 'em all how to fight!
Lost in a frozen wasteland and split up from your partner inside an abandoned castle, the only possession you have left is a walkie-talkie with a familiar voice on the other end. Can the two of you find your way out in time?
In KILLING FLOOR 2, players descend into continental Europe after it has been overrun by horrific, murderous clones called Zeds that were created by rogue elements of the Horzine Corporation. 6-player Co-Op & 12-player VS Zed-slaughtering mayhem.
Step into the boots of Grayson Hunt after a crash landing on an old resort planet forces him to make a hard choice: survival or revenge. Execute masterful kills with Bulletstorm: Full Clip Edition’s unique combat system that rewards you for performing the most creative and deadly kills imaginable.
The followup to 2009's Dead Samurai, The Dishwasher: Vampire Smile is a combo-fueled, fast-paced, stylistic 2D action platformer that features the series' staple gritty, graphic novel-inspired art style, built on a new engine that allows for an even more visually gruesome experience.
Rotary-wing aviation and helicopter combat with a dynamic battlefield and the support of ground forces. Appreciated for MMO elements and an addictive gameplay loop. Use tactics and make strategic decisions or fly around and shoot in historically accurate maps.
DRAGON BALL XENOVERSE 2 builds upon the highly popular DRAGON BALL XENOVERSE with enhanced graphics that will further immerse players into the largest and most detailed Dragon Ball world ever developed.
NosTale is a free-to-play anime action MMORPG which takes you on an exciting journey through a world full of mystery with your friends. More than 30 specialist classes and tons of loyal pets provide plenty of excitement and variety in PvP, PvE and raids
You are a Bigfoot hunter with an important mission: to put an end to rumours once and for all and prove to yourself that Bigfoot is not just a myth or an invention of the mind...
Absolver is an online multiplayer combat game where players are placed behind the mask of a Prospect under control of the Guides, the new rulers of the fallen Adal Empire, who will determine your worth in joining their elite corps of Absolvers.
Styx returns in a new stealth adventure! Explore and master huge open environments, sneak past or assassinate new enemies and bosses, and experiment with the new array of lethal abilities and weapons in our goblin assassin's arsenal.
METAL GEAR SURVIVE builds upon MGSV’s stealth action gameplay with elements of exploration and survival creating a bold new experience. *An internet connection is required to play the game.
Experience close-quarters battles in iconic WWII settings. Defend the line, storm the beach, torch the enemy, or use a radio to call in fire support. Day of Infamy is a teamwork-oriented shooter that will keep you on your toes and coming back for more with its diverse game modes and authentic arsenal.
Welcome to Han Xiongnu Wars. A stand-along game and synergy of historical Far East and multiple features in role-playing, real-time strategy and action gameplay. This game brings you to the eventful years of the early Han Dynasty, and faithfully presents the ancient eastern culture with many objects and scenes faithfully reconstructed...
No Man's Sky is a game about exploration and survival in an infinite procedurally generated universe.
For its 10 year anniversary, Titan Quest will shine in new splendour. This Anniversary Edition combines both Titan Quest and Titan Quest Immortal Throne in one game, and has been given a massive overhaul for the ultimate ARPG experience.
A sandbox adventure game as big as your imagination.
Wage war against players from around the world with an unstoppable arsenal of 300+ powerful armored combat vehicles. Compete in PvP tank combat, complete co-op missions, and crush your enemies on breathtaking maps, from scorching deserts to neon-drenched urban jungles.
Explore planets, follow a story campaign, and build homes together in a four-player online sandbox where every friend has a ship of their own.
Fight, Farm, Build and Explore Together in the standalone multiplayer expansion to the uncompromising wilderness survival game, Don't Starve.
Blow off steam and tank turrets in a free-to-play online 7v7 tank shooter! Drive hundreds of tanks, from museum classics to "did-that-ever-exist?" specials, in quick 5 to 7-minute brawls packed with metal mayhem. Play solo or team up with a friend and enjoy smooth action even on modest hardware!