可以和朋友在线一起玩的免费开玩（Online Co-Op）游戏共 348 款，包括WARMODE、Knightfall: A Daring Journey和The Two of Us。
全部游戏: 24
Free to play shooter about the confrontation of two irreconcilable sides, represented by the government military housings and the armed hirelings. Try your hand at virtual battles with off-scale dynamics and hurricane gameplay in the spirit of the classical shooters.
Two knights, a strong bond, and a long journey. Take up the race for the rose, ride from town to town and take shelter before nightfall by any means necessary! If your bond is strong and your horse drifts well, you can be the recipient of the fabled rose. Luckily you brought guns!
The Two of Us is a 2D Co-op Platformer that has a strong emphasis on working together. You will be greeted with various puzzle levels where you must work in conjunction with your friend to navigate the level.
Jump into it with NEW EPIC SCUFFED BHOP SIMULATOR 2023 POG CHAMP, a new parkour game which has spicy memes, graphics, and physics engine! Play with up to 10 friends in multiplayer and by yourself in single player!
Never Split the Party is an ultra social rogue-like! You're one of four adventurers joining together to explore a procedurally generated dungeon, amass powerful upgrades, and cooperate with your fellow adventures to conquer and crush the evil dungeon champions!
A fun hidden role game where you backstab your co-workers and get mad at your co-workers for backstabbing you. (6-10 players)
Command the seas in Maelstrom! Engage in fast-paced naval battles with powerful warships and colossal sea monsters. Customize your fleet and dominate the Abyssal Ocean. Are you ruthless enough to survive?
Face the varied challenges of the Machine God Zir in ARENA, a standalone expansion for Synthetik: Legion Rising! Leverage the next level in gun-play and experiment with powerful tech in varied action packed Arenas!
Your crew consists of two elite thieves. A client hires you to steal a mysterious item. One handles intel; the other infiltrates. Choose your roles and master the heist in this asymmetric co-op puzzle game.
Gridiron is a fast-paced fusion of sci-fi and arcade-style football featuring easy to understand controls and a competitive multiplayer driven online experience. Gridiron supports up to 7v7 action in both casual and competitive online matches, offline practice mode and much more!
Come with Me is a two-player cooperative game set in a puzzle filled magical world. Solve puzzles together by using your special abilities and collect memories to uncover the mystery of the world around you.
Expedition Agartha is a high-stakes first person slasher. Loot ancient treasures, conquer mythological enemies, and extract to safety - alone or up to groups of three. Gear up and launch your expedition in the first and only medieval extraction looter available on Steam!
Onraid is a challenging 2D shooter game, where you are free to develop your own play style and tactics to destroy your enemies.
Confused, you wake up sucked into an empty classroom. You have to try to escape from school by solving puzzles and discovering secrets.
《FreestyleFootball》 is a street hip-hop animation style soccer ACG game created by JCE and published by HOGA. In the game, you will collect and play as different characters in PVP team Competition. The game mode includes 4v4 team competition and club league.
D.A.B. Your foes in co-op & PvP battles. (D)efend bases with weapons and skill. (A)ttack with clever AI armies. (B)uild amazingly creative defenses.
Rise of Legions has shut down. It was a strategy and deck building game with dynamic, tactical gameplay.
Treason is a 3-16 player party shooter of teamwork and betrayal, set among Italian mobsters. Use proximity voice chat, unique abilities/gadgets, and strategy to prove your innocence or deceive others.
Online (6v2) social deduction game that will ruin your friendships. 6 crew members, 2 murderous shape-shifting aliens. Trust No One.
Enter a world of magic and battle, where your wits and reflexes will be pushed to their limits! Choose your spells, enter the ever-changing arena and prepare to obliterate all who stand in your way!
ADVENTURE. ANYWHERE! Explore endless magical worlds and battle fearsome creatures alongside millions of friends. Ride your own horse, bear or moa and discover the many game world wonders. Unleash your imagination by crafting beautiful buildings.
Crystal Clash is a mix of Lane Battles and Deckbuilding - with action-packed tug-of-war strategy, just like your favorite RTS mods from back in the day! :) Play 2v2 or co-op with a friend, or pair up with new allies and enemies! Collect cards, build your decks and have fun crushing your enemies!
“BLACK STIGMA” is a unique action shooter where ruthless Masters from rival organizations fight to dominate the city’s underworld. Experience stylish action and the thrill of precision gunfights!
Hobs is a turn based card game which you can try different strategies to beat your opponent. Find best deck for your strategy, buy new heros, try different strategies and try to place to the top.