Co-op & Multiplayer Games

Modbox is a multiplayer game creation sandbox for Desktop+VR

You are lost in the Bermuda Void, where the ocean is endless and dry land precious. Craft your Ship-in-a-Bottle, then experience survival on the high seas. Sail for new land, build camps, hunt for treasures, trade for goods - then defend your ship from dreaded pirates stalking this strange realm!

Rune Knights is a cooperative action RPG focused on customization, crafting, and combat. Customize your character's aesthetics, stats, gameplay, and gear as you battle through procedurally generated and hand-crafted levels with your allies.

WHAT THE PAK?! is a minigame-rush party game with fast-paced gameplay for up to 8 players. Our various mini-games are designed so you can pull off all kinds of shenanigans with your friends. Punch them, lick them… Steal their chickens before throwing them overboard.

A dungeon-crawling, world-hopping roguelike adventure! Grab your friends, stick dynamite to your sword, throw candles at your foes and die in various exciting ways!

In the third game in the dark samurai action RPG series Nioh, you will need to use both Samurai and Ninja combat styles in your battles against formidable yokai as you explore a thrilling open field.

Wonderia's an open-world, manga-art adventure just waiting to be explored. It's got sci-fi sim elements, deep dungeons, and you can even morph into alien form! Grab up to 7 friends to mine, craft, battle, and level—or farm and fish the day away, if that's more your tempo. There's so much to do!

Cossacks 3 is the return of RTS classics. Obtain resources, build cities and research technologies while taking command of great armies, crushing enemies in grand historical warfares on land and sea!

Are you ready to embark on the drift adventure of a lifetime? Gather your crew, rev up your engines, and become the Drift Masters.

Call to Arms offers an innovative mix of real-time strategy and 3rd, as well as 1st person controls. Set in the time of modern warfare, the game offers realistically modeled vehicles and heavy weaponry. Command your troops to victory or fight by yourself in the 3rd or 1st person action mode.

Steel Division 2 is a historically-accurate WW2 real-time strategy game set on the Eastern Front. Features 1:1-scale turn-based army management and real-time tactical battles with thousands of men at your order.

MY HERO ONE'S JUSTICE 2, the over-the-top follow-up to the smash hit 3D arena fighter MY HERO ONE'S JUSTICE, makes its heroic debut! Make full use of characters' Quirks as you clash head-to-head in epic battles across huge arenas!

KNIGHT CLUB + Is a casual 2-4 player action platform-fighting game that brings traditional fighting game elements into an unlocked, free form movement playstyle.

Lead the battles that forged the greatest Empire of all time. Seven civilizations fighting for glory or freedom: Rome, Aegyptus, Britannia, Germania, Gallia, Hispania, and Carthago. Enjoy the fast-paced RTC “Real-Time Conquest” gameplay, an Old School RTS oriented to military conquest.

Wheelchair Wizards is a 2-8 player party game where you battle your friends while upgrading your wizard.

A relaxing color by numbers game! Color with your friends! Lots to paint! No hidden fees!

Yugo: the non-game is a virtual space where you can drive a car, listen to the radio, and invite people to talk and share the experience with.

The Timeless Child is a 2-player puzzle-adventure coop game with first-person view. Embark on a journey, through time and space, to save Emily Wells from her endless temporal jail.

“Troll” is such a strong word for this 2D platformer with nearly 240 uniquely inventive levels. Don’t let screaming YouTubers convince you that this game is unfair. It’s fair. Sure, there are buzzsaws but they’re NICE buzzsaws. You will curse the guy who made Level Devil (Me😈) then ask for more.

Grapples Galore is a fast-paced online multiplayer arena shooter with physics-based grappling hook movement, active ragdolls, and thrilling gunplay.

Retrograde Arena is a multiplayer twin stick shooter where bullets don’t kill. Use weapons, physics, and your Drone to push, pull, and blast your foes into deadly surroundings in this skill-based shooter action title that redefines physics-based action.

Phantom Squad is a 1-4 player co-op tactical top-down shooter blending fast-paced combat with real-time strategy. Play solo or team up through online co-op and matchmaking, coordinating movement, positioning, and split-second decisions to survive intense, high-risk missions.

ST brings the most intense, tactical-action experience to Steam. Select your custom loadout, plan out strategies and accomplish your objectives. Addictive Survival mode and unrivaled multiplayer including Squads (1 vs 1, 2 vs 2, 2 vs 1)

No King No Kingdom – First-Person Strategy Game. Ride Dragons! Command peasants! Build towns! Raise Armies! Tame Epic Creatures! Take your own sword and fight side by side with your troops against powerful giant bosses.

It's the first ever chess variant with spatial, temporal, and parallel dimensions. It's 5D Chess With Multiverse Time Travel! Move pieces back in time to create branching timelines. Send a rook to a parallel dimension. Protect your kings in the present and in the past!

Feel like the star of a martial arts film in Overgrowth, as you jump, kick, throw, and slash your way to victory. Free the rabbits from their evil overlords in the main story, then play through the prequel story, and finally, try out nine years of mods developed by the community, or create your own!

A co-op RBMK reactor simulator, with a detailed control room, realistic physics and authentic sound design

Replayable co-op action roguelike where every run starts fresh with team build combinations and zero progression gap.

A FEW QUICK MATCHES is a fast-paced, 1-4 player platform fighter that lets you bring old-school stick battles to life! play with your friends locally, or challenge players online in this flash-inspired spectacle!

Play solo or with up to 16 friends in a chaotic grocery store prologue! Manage, grow, and compete against rival stores in a fun, lighthearted battle of wits and strategy. Who will be the ultimate grocery tycoon? Store Wars: Prologue - Multiplayer Shop Simulator is a limited version of the full game.

Become a tennis coach and manage up to 9 players: take care of training sessions, planning, sponsors, team members, and take control of them on the tennis court if you wish so! Will you be able to lead your players to the top of the world hierarchy?

In Kawaii Deathu Desu, supernatural beings find themselves incarnated as cute japanese idols! Pick a supernatural idol and beat the hell out of - no pun intended - as many overzealous fans as you can in this addictive beat'em up as you work your way up to claim the throne of the underworld!

A classic arcade mining game where you dig for gold, collect treasure, dodge hazards, and upgrade your gear across multiple modes and levels.

Ascension: Deckbuilding Game is now available for your PC and Mac, complete with 9 full expansion decks! Play alone or with friends to battle against the Fallen One for honor and victory. Conceived and designed by Justin Gary, Ascension will provide hours of engaging and strategic game play for enthusiasts and experienced gamers alike.

The mayor of Rockhaven threw you down a hole into the Undercity. Why? Net worth too low. In this open-world simulation, you and up to 3 pals will steal, fight, and scheme to reclaim the city. Customise your rides, buy businesses, and take on the Mayor’s forces. Rockhaven is yours for the taking!

Fly near-future aircraft with immersive physics across dynamic battlefields, facing land, air, and sea threats. Wage war against AI or rival pilots using an array of advanced weaponry, including tactical and strategic nuclear weapons capable of annihilating anything in your path.