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 421–430 of 464 games matching Base Building · updated 12 Oct 2026

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
41% of 12

SOS Zombie Survivors follows a group of survivors that fights waves of increasingly aggressive zombies while preparing for a rescue helicopter scheduled for evacuation a rescue point.

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$$
Released
Price
$$ · Standard
Players
👥 2–4 players
Reviews
93% of 32

Discover one of the hardest tower defense games with strategic elements, individual gameplay and challenging mechanics. Play together with your friends in co-op mode, create a team and compete with other players in the online ranking.

Free
Released
Price
Free
Players
👥 Not stated
Reviews
73% of 19

Tank Captain "is a strategic warfare game where players will play the role of commander and engage in different tank combinations to enhance the refined attributes of tanks and artillery. They can enhance their attack or armor abilities according to their preferences and win the war.

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
69% of 232

A grinding medieval fantasy life sim with a detailed complex crafting system complemented by survival and RPG elements. Grind resources, craft items, trade with locals, master professions, fulfill quests and explore the world to uncover its long-lost secrets.

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$$
Released
Price
$$ · Standard
Players
👥 Up to 4 players
Reviews
76% of 384

While searching for a new home, an unexpected failure in your ship has left you stranded on a planet surprisingly similar to Earth. Discover a vast open world, hunt for food, develop technologies, and build yourself a new home to survive!

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$
Released
Price
$ · Cheap
Players
👥 Up to 4 players
Reviews
84% of 210

Defend against hordes of zombies in this fun filled top-down shooter. Build and upgrade your base, unlock powerful guns, and take on challenging bosses with up to 4 players in online co-op. Play minigames to earn bonuses and survive the zombie apocalypse one night at a time!

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
100% of 1

CottageVille is a cozy idling game, where you can design your very own cottage and do various activities (such as planning, listening to music, etc.) on your own, and together with your friends!

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