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 351–360 of 464 games matching Base Building · updated 12 Oct 2026

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
74% of 27

Journey with your friends in the free to play world of Ferromon Together and take on the 10 towers with over 140 Ferromon to save the world's inhabitants from the Tainted!

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Up to 2 players
Reviews
93% of 15

Build your ultimate defense with a combination of powerful towers. Attack your opponent with strong Invaders. This game is sure to offer a unique and immersive experience for all tower defense enthusiasts!

$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
76% of 17

A new look at tower defense, full of dynamics and tactics! A terrible virus has struck humanity. You will have to build defenses with your friends or alone and fight off the hordes of zombies who want to get to you.

If you loved these, you'll love this

$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
0% of 7

Embark on a heart-pounding journey in this survival open-world game, where a relentless creature, Humanoids prowls the landscape. Explore, craft, build, and fight for your life as you navigate the dangerous world.

If you loved these, you'll love this

$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
58% of 232

Eden Island is a beautiful survival game. As a survivor, you will explore and survive on a realistic tropical island, craft weapons against beasts, farm and hunt, build your own home.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
62% of 29

Survive in the heart of a post-apocalyptic realm where the very essence of survival is put to the test in a vast, open-world environment. An independent Multiplayer game that demands will, and strategy, you’re not just fighting to live — you’re crafting a new world from the ashes of the old.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Not stated

In the 5V5 strategy competitive game, you will play the role of a daimyo, managing and developing your power within 60 minutes, eliminating all enemies. You need to strategize or engage in close and distant attacks to achieve victory together with your allies.

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
47% of 113

By day, tend to your farm, care for your pets, and explore the mysteries of the haunted woods. By nightfall, They will come from the woods, Beware of ghosts and demons of the haunted woods. Hide, Survive, Build, Fight and Explore in this eerie Survival Horror alone or with friends.

If you loved these, you'll love this