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 41–50 of 577 games matching Building · updated 12 Oct 2026

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👥 Not stated
Reviews
76% of 180

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!

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Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
65% of 23

A few logs, one harpoon, no land in sight. Pull driftwood from the sea and build your raft into a floating town, on your own or with friends you invite straight from Steam. Dive to the ocean floor. Raiders come at night, sharks circle, and somewhere out there, a leviathan is waiting.

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Released
Price
$$ · Standard
Players
👥 1–4 players
Reviews
82% of 62

Gather, craft, build and explore alone or with up to 3 friends. Unlock new land, collect resources, build and decorate your home, farm, fish, automate production, upgrade your character, and defend against optional enemy raids.

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Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
87% of 32

Fight, farm, and forage as a new experience awaits in this open-world survival crafting adventure. Journey alone or with friends as you build your own safe haven to weather the harsh Nordic landscapes before you.

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Released
Price
$ · Cheap
Players
👥 Not stated

Avatar Quest Online is a sandbox MMO where avatar life, crafting, casual FPS combat and NPC life run at once. Build with unlimited blocks, decorate with nearly 100 furniture pieces, level up battling dinosaurs and dragons, and chat by voice and text. Updated daily in Early Access.

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$
Released
Price
$ · Cheap
Players
👥 1–4 players
Reviews
100% of 1

Catnip Wars is a 1–4 player co-op tower defense. Play as scrappy Catbots defending your catnip farm from monster waves — build and power turrets, raise walls, harvest resources, man the BFG, revive fallen friends, and climb the tech tree. Play solo or online with friends. Achievements/Leaderboard

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Players
👥 1–8 players
Reviews
75% of 204

Competitive mall simulation. 1-8 players open stores in the same mall, fight for customers, crush rivals. Team up or go solo. Fair play or dirty tricks? Your call. Procedural maps, employee system,mall cops, smugglers and physical mechanics.

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$
Released
Price
$ · Cheap
Players
👥 2–4 players
Reviews
100% of 3

Cute cats, chaotic moves, big plans. Meow Box City is a multiplayer, strategy board game about building influence before local elections. Collect cards, place buildings, balance satisfaction, population, income, and sabotage rivals to win at the ballot box.

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$$
Released
Price
$$ · Standard
Players
👥 Up to 6 players
Reviews
78% of 182

A survival horror set in a massive maze. Play solo or 6-player co-op. Scavenge resources to craft gear and survive against terrifying enemies. Unlock unique abilities and find the exit.

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