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 181–190 of 464 games matching Base Building · updated 12 Oct 2026

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$
Released
Price
$ · Cheap
Players
👥 Up to 8 players
Reviews
100% of 16

Manage the shop by day, serving customers and keeping everything afloat, by night fend off hordes of crazed lunatics and handle unexpected challenges that come with being a small business owner. Enjoy a mix of cooking simulations, tower defense, and multiplayer co-op in this unique pizza adventure.

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Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
56% of 7,201

Welcome to a vast, social sandbox MMO inspired by the legends of the medieval era. Here, myths are real, ghosts exist, and magic is unquestioned. Join thousands of players as you explore the land, build your home, forge your reputation, and craft your own stories. What world will you make?

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
75% of 479

You are lost in the Bermuda Void, where the ocean is endless and dry land precious. Craft your Ship-in-a-Bottle, then experience survival on the high seas. Sail for new land, build camps, hunt for treasures, trade for goods - then defend your ship from dreaded pirates stalking this strange realm!

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$$
Released
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$$ · Standard
Players
👥 Up to 4 players
Reviews
52% of 46

Cooperative survival and horror genre. You and your family have returned to your native land, on which a terrible curse and darkness has fallen. Will you be able to survive in a harsh and dangerous environment and stop the evil? It depends only on you, on your skills and ability to help each other.

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
81% of 81

The last world war didn't end conflict. The Iron Hand tyrannizes people, as the Resistance fights for liberation. In the resulting conflict high tech and brute force face off against guerrillas with unconventional tactics, leading to Red Chaos: A modern take on classic real-time strategy games.

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Released
Price
$$ · Standard
Players
👥 Up to 5 players
Reviews
67% of 1,474

Lost Rift is a first person survival adventure shooter that blends cooperative base building with multiplayer PvE or PvP extraction expeditions. Journey solo or in teams of up to 5 players across a vast archipelago, craft gear, build bases, defeat raiders, and become legendary.

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
92% of 2,473

Go wild with your BFFS in your ultimate cozy getaway! Yank up hilariously plump veggies, reel in giant flappy fish, bump into adorable little animals, and unlock a bunch of weird and wonderful toys! If you feel like it, doing absolutely nothing on the beach is exactly what you're supposed to do!

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
63% of 2,484

Chart a course in a breathtaking, but fractured world. Explore ancient ruins, master advanced technology, and craft your very own skyship to brave nature’s fury and colossal threats in Lost Skies. Team up with friends or go it alone in this awe-inspiring cooperative survival adventure.

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