Online co-op Base Building games

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

Showing 261–270 of 464 games matching Base Building · updated 12 Oct 2026

Filters: Base Building × Clear all
$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
20% of 5

Let’s Build Wonders:Galaxy is a multiplayer cooperative space-building game. In the game, members within each alliance achieve efficient resource sharing and division of labor through trade transportation means. They work to expand their alliance's galactic territory to resist pirate harassment.

If you loved these, you'll love this

$$
Released
Price
$$ · Standard
Players
👥 Up to 4 players
Reviews
94% of 902

Live your best squirrel life. Explore, gather, craft, and build incredible treehouses in acres of beautiful parkland. Scurry across lawns, up trees, and leap limb to limb solo, or up to four friends can play together in co-op. Endless summer days of adventure await.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
50% of 6

This is a top-down survival-building game blending farming, tower defense, and micromanagement, requiring you to fend off zombie hordes, grow crops, and strategically deploy traps to defend your homestead.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
100% of 7

Explore dangerous bunkers packed with mutants, scavenge vital loot, and race against dwindling oxygen. Upgrade your shelter, craft gear, and risk it all for bigger rewards. Solo or co-op, see how deep you dare go!

If you loved these, you'll love this

$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
63% of 52

Command one of three unique factions in a post-apocalyptic old-school RTS. Now featuring Patch 0.4.0 -- new mini-campaign and gamemodes."

Free
Released
Price
Free
Players
👥 Not stated
Reviews
100% of 8

ZHONGXING NEW VILLAGE is a multiplayer online game centered on regional revitalization, featuring the history and guided tours of attractions and regional revitalization stories, encouraging more people to participate in revitalization activities in Zhongxing New Village.

If you loved these, you'll love this

$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
67% of 190

You're a nameless traveler, stranded in a ghost town in the Cursed West. Use your wits, elbow grease, and the iron on your hip. Build a homestead, work the land, and survive against unspeakable monsters in this unique Western horror survival game - alone or with friends!

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
52% of 57

A hardcore tactical shooter with horror elements. Battle Machines and Mutants, and build your legacy on a deadly post-apocalyptic Cyberpunk Island. Explore dangerous zones, craft powerful gear, and shape your Cyberware build. Uncover secrets and fight to survive in a brutal, immersive world!

If you loved these, you'll love this

$$
Released
Price
$$ · Standard
Players
👥 1–4 players
Reviews
78% of 179

Play with friends in a cozy base-building adventure! Take care of adorable creatures — Morps, explore, discover new species, grow crops, fish, build relationships with your crew, decorate your perfect home, and automate production along the way!

If you loved these, you'll love this