Online co-op Building games

Every online co-op Building game on Steam we know of, newest first. Add tags or a price band to narrow it down.

Showing 471–480 of 577 games matching Building · updated 12 Oct 2026

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78% of 288

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.

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Players
👥 1–5 players
Reviews
76% of 17

Clouds Ahoy! is a frantic coop multiplayer game. Alone or with up to four friends you make up the crew of a flying Skyship. Fight alien monsters, maintain the onboard systems, complete deliveries, and upgrade your Skyship to survive between the clouds.

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84% of 583

Compete against friends in games filled with unpredictable twists and turns. Roll the dice to gather resources and test your adaptability. Lead your kingdom to success through military power, religious knowledge, or architectural ingenuity.

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Players
👥 Up to 4 players
Reviews
79% of 964

Embark on a cozy open-world survival journey inspired by ancient China's heritage. Gather resources, cultivate crops, build your dream home, and defend it from marauders. Team up with friends to explore and uncover a world where adventure meets serenity.

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👥 Not stated
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50% of 14

Lost Hope is a survival game where you shape the world, battle zombies, and explore diverse territories, uncovering secrets while facing extreme challenges.

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93% of 809

Godsworn is a classic RTS with single-player & co-op focus. Experience an epic fantasy retelling of the Baltic Crusades set in a world inspired by pagan mythology. Choose a divine hero, rally worshippers alongside mythical creatures, and smite the unworthy!

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86% of 445

A 2D automation sandbox adventure. Build an automated factory with Mana-powered machines, progress through an expansive tech tree, explore a vast and wonderful world, upgrade yourself with ancient technologies, and defend it all from invasions.

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62% of 2,033

TerraTech Worlds is an open world, build-craft adventure game, set on an uncharted alien world. Play solo or with friends, explore your surroundings, craft unique vehicles, construct automated bases, and battle your way through hazards and enemies to harness the power of your environment

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