Co-op & Multiplayer Games

Retro Commander is a post-apocalyptic real-time strategy wargame (RTS).

Battlezone: Combat Commander remasters FPS-RTS classic Battlezone II with slick new visuals, brand new achievements, Steam Workshop support and much more! The solar system is at war. Take command.

Become a pilot! Immerse in WW1 aerial combat like never before in a captivating VR experience. Be a pilot during the Great War in Warplanes: WW1 Fighters. No matter whether you prefer arcade games or flight simulators – a variety of options will let you adjust the game to your preferences.

Finally, the walls between Falcom's legendary RPG series, Ys and Trails, are broken for the ultimate dream match up! Fan-favorite heroes and rivals clash in battles once thought impossible, with support from beloved characters across Falcom's classic titles to aid you in the fight!

Pocket Cars is a fast paced arcade combat-racing game, where you can drive remote controlled cars that speed through amazing tracks.

Open world multiplayer sandbox/RPG game. Explore, gather, build, research, and fight to protect what's yours -- by yourself or together with your friends.

Buy, upgrade, and dominate in this fast-paced multiplayer board game! Compete with quirky characters, strategize your moves, and outsmart rivals in unpredictable matches filled with fun and surprises. Climb the leaderboard and become the ultimate tycoon! The dice are in your hands! 🎲

This is the official digital adaption of the boardgame Viticulture by Jamey Stegmaier & Alan Stone.

A racing game with cubes on constantly changing tracks to mess with your friends in the fairest way possible

Drunken Wrestlers 2 is a funny physics-based multiplayer fighting game. Features include character customization and a powerful mod editor integrated with Steam Workshop.

Little Racers STREET fuses the fun-oriented simplicity of top-down racing games with the excitement of street racing, and the results couldn't be better!

Build an army and lead your heroes into battle in an epic fantasy strategy game. Hex Commander: Fantasy Heroes is a turn-based strategy game that will put you right in the middle of war between Humans, Orcs, Goblins, Elves, Dwarves and the undead.

Survive on a mysterious island after a plane crash! Solve match-3 puzzles, restore your camp, craft tools, grow crops, explore jungles and lagoons, uncover hidden treasures and reveal the island’s secrets!

Powerplay is an RTS with a focus on resources and industry. Create supply chains, transport, and explore in this thrilling base builder. Grow into a powerful industrial nation, but don't spread too thin! Resources are finite and "the others" can reclaim what is theirs at any time.

Catto Pew Pew! is a physics-based shooter game where competitive gameplay, proximity chat, and pure chaos collide. Shoot your opponents into the sky and claim your victory!

A Multi-player incremental clicker game.

Towers together is a cooperative tower defense game with cards. Combine your cards with your friends’ cards to achieve powerful combo, but get ready to fail and laugh together. Build towers, cast spells, have fun with friends!

Contribute to the colonization of the universe. Get and process resources, develop your technologies. Achieve complete automation and build a portal to include another planet in the chain of worlds.

Build, design, and explore your own fantasy world using over 1000+ items, in this relaxing sandbox game. No missions, no objectives, no timers. Just stress-free building, exploration, and good vibes.

Lux Delux is a fast-paced turn-based-strategy game of risk and world domination, with so much more! Highly moddable, Lux has over 900 maps, diverse random map generators, a biohazard mode, an AI SDK, and an online multi-player league.

What the box is an Online Multiplayer shooter in which players control living boxes hiding amongst regular boxes while trying to destroy each other. Run around with your trusty box cutter in hand or stand still and wait for the perfect moment to strike!

Drive, Explore, Operate and Create the railroad of your dreams - and now collaborate in real time with Multiplayer Surveyor! And with Trainz Plus memberships, you get more content, more features and the latest Trainz has to offer!

In a world where the only thing you know is combat, can you survive endless waves of enemies?

Warman is action-adventure RPGs distilled. Don't worry about plot or moral choices: Create your hero, then go out and conquer a vast, procedurally-generated world. Gather loot, raise your stats, then go out and seek further challenges - on your own or with up to seven friends at the same time!

High-octane 2D shooter. Put your shooting skills to the test with over 200 weapons and attachments. Play game modes solo or co-op online!

Turn-based wizard combat with the tactical positioning of chess and the bluff of poker. Features wizard customization, 100s of gear items, single player realm adventures, online leagues and co-op play.

Drift, speed and all sorts of stunts await you in this unique and innovative game. The realism of the details will envelop you until you feel the movement of the pistons in your bones. Stunt Legends is an explosion of colors and adrenaline. Speed and fun with no limits.

Did you ever wonder what sports would be like on the moon? This dynamic multiplayer game will have you on the edge of your seat for hours to come! Mixing elements of Rugby with the low gravity of the moon, you can work as a team to score goals against your opponents.

The boys are back , and they look better than ever! Oh…Sir! The Hollywood roast is a brand new spinoff to the surprise indie hit 0f 2016, Oh…Sir!! The Insult Simulator. This time around we’re taking tinsel town down a few notches, whilst classing up the joint. Play as one of many famous, but for legal purposes, slightly different pop culture icons and verbally spar with other Hollywood elitists using a deep battle system

Final Factory blends factory building, spaceship design, and a rich universe to explore. Build a mega factory and command a massive fleet against the hostile local aliens. Discover new technologies and unlock the secrets of an ancient civilization as you explore an infinite cosmos.

Compete for the world record in this fast-paced multiplayer racing platformer! Dash through short and fun levels, or be creative and build your own levels in the fully fledged level editor!

A community-driven rhythm game with a focus on creativity and expression.

Grand Mountain Adventure: Wonderlands lets you explore freely and at your pace entire ski resorts and the surrounding mountains. Unlock ski lifts and reach new areas by competing in challenges, or enjoy the scenery while you find your own path down the mountains.

Zero G Arena is an arena shooter with zero gravity, ragdoll physics, grappling beams and magnet boots

Play the most exciting moment of baseball in this fast-paced dice and card game!

The lighter side of turn-based war gaming. Take your time to plan good strategies, deploy your troops in the right places, try not to laugh whilst killing your enemies.