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 141–150 of 577 games matching Building · updated 12 Oct 2026

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$$
Released
Price
$$ · Standard
Players
👥 Up to 16 players
Reviews
93% of 214

Build your base, prepare your troops, and face your most epic battle yet in this old-school real-time strategy game. Choose between two factions, test your skills in three epic campaigns and engage in online battles with up to 16 players simultaneously.

Free
Released
Price
Free
Players
👥 Not stated
Reviews
53% of 13

CatTag: Create is a multiplayer VR sandbox game where players use hand-based movement to explore, build, and play custom worlds together. Create maps with physics blocks, animations, collision events, and programmable circuits.

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

Build the traps. Dodge the chaos. Beat your friends. Exit Plan flips the platformer formula, players shape and create the dungeon as they race through physics-driven, ever-changing runs.

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
40% of 158

Farm, fish, craft, and cast spells with your friends in this idyllic, magical multiplayer farming sim. Befriend the townsfolk of Wenngrove, learn their trades and stories, tend your home with your friends and Familiar, and make magic in Spellfarers.

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$$
Released
Price
$$ · Standard
Players
👥 Up to 2 players
Reviews
87% of 1,403

In a world where electric cars reign supreme, you are now the owner of an old gas station out in the wilderness. Establish trade, develop your business and uncover the secret of this strange place in the compact gas station simulator.

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$
Released
Price
$ · Cheap
Players
👥 Up to 5 players
Reviews
86% of 645

Take over the gas station and convenience store at a roadside rest area and expand by purchasing new businesses. Manage a living world shaped by dynamic economy and random events. Upgrade your facilities, satisfy your customers, and play solo or with friends.

If you loved these, you'll love this

$$
Released
Price
$$ · Standard
Players
👥 Up to 10 players
Reviews
92% of 1,417

SimplePlanes is back! Build planes, cars, or anything else using powerful procedural parts! Explore detailed environments with friends in multiplayer, cause chaos, or download 1,000,000 community crafts for free.

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
66% of 224

You survived a helicopter crash; going home is your top priority. Live as a castaway - survive the dangers of the islands by using your environment to find food, build shelter, craft tools to extend your stay, explore the secrets of the islands and their surrounding waters, and carve your way home.

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$
Released
Price
$ · Cheap
Players
👥 Up to 8 players

Build directly or fire away! A chaotic TPS where you pave mid-air paths using taxis and salamis. Enjoy unfair 8-player parkour, explosive brawls, and crazy soccer. Push your solo time limits, or mercilessly sabotage your friends for laughs!

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