Co-op & Multiplayer Games

Din's Legacy is an action RPG with mutating characters, set in a dynamic, evolving, fantasy world for Windows, Mac, and Linux.

Desecrators is a retro six-degrees-of-freedom shooter set in a 41st-century galaxy where outlaw hovercraft pilots plunder deep-space installations. Loot destructive weapons and powerful upgrades to take on the ultimate heist: the legendary vaults of the Galactic Treasury.

22 years after its first appearance, the iconic Platypus is coming back, featuring updated gameplay, new weapons and additional content. Get ready to dive into the heart-pounding action of this fast, frantic, and incredibly fun arcade-style shoot-em-up!

Run fast, soar through the air, and master your landings as you speed through procedural worlds to outrun the end of the universe, by yourself and with friends!

IL-2 Sturmovik: Battle of Stalingrad is the continuation of the legendary IL-2 Sturmovik series that has set the standard for PC combat flight games for more than ten years. This new entry into the series will offer virtual pilots an even more accurate simulation of the most famous air battles.

Enter the Samurai Afterlife and join forces with vibrant ghost-samurai warriors, magical animal monks, and mustachioed samurai generals. It's fast-paced turn-based strategy inspired by Advance Wars, and supercharged with fighting-game flare!

Fight alone or beside others trapped in the same nightmare. Survive waves of deranged cultists and grow your mischief of rats. The longer you stay, the more you can save, and the more you risk losing before reaching Traang, Milo’s Arcade.

You will see the creation of new lives... Capture enemies and fire them back at their allies as enormous beams of energy in this horizontally scrolling shooting game, featuring 5 versions of G-Darius with new features, enhancements, and Steam exclusive extras!

The HD Remaster of Legend of Mana is coming to Steam. Meet a colorful cast of characters, use the unique "Land Make" System to build the World Map, and square off against fearsome monsters in the vibrant world of Fa’Diel.

DIG Raiders is a co-op game about blasting underground in search of aliens. Deep in debt, you've taken on a mysterious dig site. Team up, blow a path below, explore, find aliens, and put them to work in your alien shopping district—or ditch the job and start an all-out brawl with your friends!

Monster Bullets is a first-person roguelite where each monster has a specific weakness. Quickly load the correct bullet for each monster and fire them off! Experiment with upgrades on each procedurally generated attempt and try to slay the goblin king!

Damned 2 is an asymmetrical multiplayer horror game where up to four survivors must work together to survive an unrelenting monster - either player or computer-controlled - while scavenging and solving puzzles in an attempt to escape.

CS2D is a free fast-paced top-down multiplayer shooter. Featuring many different game modes, a built-in map editor and much more.

Fetch some friends for fun, fast online multiplayer. One of you is the baddie! Everybody else is trying to find the baddie. The baddie is invisible. At least, most of the time...

Stellarcraft is a sci-fi tower defense adventure: explore alien planets, gather resources, build defenses, and fend off waves of enemies, solo or in 4-player co-op. 🚀

Explore the enigmatic Tor Eternum with up to 10 friends in this frenetic online co-op action RPG. Customize your character as you level up, explore the halls of the Tower, and overcome billions of different procedurally generated bosses.

The egg's great adventure, the final chapter. That fragile but brave egg has returned with even more new powers, but this time its adventure is over. A hard action adventure game in which the player rolls through various stages with sad music, aiming for the frying pan at the end.

You are hunted by a rogue computer program. Avoid the bot either by yourself or cooperate with others while attempting to collect electrical components around the world to activate beacons to open the escape hatch.

Prepare yourself to Click... Real... Fast. Push your mouse, keyboard, or controller to its breaking point—if it has buttons, it probably works. Click Real Fast and see who survives: you, or your hardware.

Super Sportmatchen is a fun and fantastical retro party sports game for up to four players!

Animated Puzzles Star is a Jigsaw - style puzzle game with a fun and fascinating twist, animated pictures. A wonderful pastime, in which beautiful photos are combined with natural motions and effects, giving you a puzzle experience above the ordinary.

Alluring audio! Pixel art perfection! Beat-em up beauty! Discover how hard a 32,000kg ninja hits with The Ninja Saviours!

33 Days till Extraction is a top-down sci-fi action RPG shooter with roguelike progression. Harness brutal firepower and necromantic skills to survive.

EndCycle VS is a grid-battle adventure that challenges you to create the ultimate deck. Battle against the oncoming Noise or prove yourself in epic online battles - now with ROLLBACK NETCODE!

You and your fellow railroaders are the lifeblood of your railroad, just like it is the lifeblood of the communities it serves. Switch cars at industries. Keep people moving while running local passenger trains. Run trains with a purpose in transition era Appalachia – in Railroader!

Squad-based action co-op featuring distinct loadout synergies and mission-based combat built for 1–2 hour squad sessions.

CometStriker DX is a fast-paced arcade-style shooter where you boost through danger and blast everything in your way!

Awaken the latent power of your melanin and kill cops in this thought-provoking game on police brutality in America.

Roadside Research is a 1 to 4 player co-op gas station simulator. Except you’re aliens. And undercover. Do very human things like restocking shelves while preparing for the invasion. Just don’t get caught.

Ecto is a goofy lil game about jumping around in randomly generated nature worlds. Complete movement challenges, pick up frogs, unlock goofy items, or set time trial records against your friends. Play singleplayer or multiplayer up to 8 players.

ATOM RPG is a post-apocalyptic indie game, inspired by classic CRPGs: Fallout, Wasteland, Deus Ex, Baldur's Gate and many others.

Make your way through a sprawling, hyper-stylized superhero universe on the hunt for superheroes turned evil. Save the world in this roguelite, 3rd-person co-op shooter by stealing powers and engaging in extraordinary combat using hundreds of unique superpowers, weapons, and abilities.

Gird your loins and sharpen your steel! Besiege 20 unique enemy lords and battle friends online, in this expanded remaster of the classic 'castle sim'. Relive history with new units, opponents, visuals, audio, campaigns, skirmish trails, co-op and larger maps.

Chip destructible bosses apart pixel-by-pixel in this twin-stick bullet-hell shooter.

Agent 11 is back. The iconic tactical deck-builder returns, with new tricks up its impeccably tailored sleeves… and this time it’s with friends. Improvise within the space, adapt your deck to the challenges ahead, and overcome a roster of new enemies in stylish, animated, fight sequences.

Team up with your friends and build a thriving trade empire in this CO-OP strategy and economy simulation set on a lively island. Begin with a small market, share tasks, manage production chains, raise livestock, and dominate the economy together through changing seasons and dynamic festivals!