Online co-op City Builder games

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

Showing 11–20 of 133 games matching City Builder · updated 12 Oct 2026

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
65% of 32

A deep colony sim and city builder. Manage resources and production chains to build the railroad from East to West. Found towns, harvest and refine the goods that fuel the line, then persuade or outlast the settlements in your path. Every citizen has a name, a trait, and a breaking point.

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
84% of 38

Lead your small caravan on a great journey across the ancient world, in a story-driven base-building RTS where protecting your family and friends matters more than conquest.

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

Explore a world of possibility. Build your own personal Eden. Unleash your creative and adventurous spirit! Eden is a game that lets you build your world. The game engine enables crazy sandbox fun. Build, destroy and explore your way through endless worlds. Nostalgic classic fun for all ages.

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
78% of 41

《乱世江山》集即时战略与沙盘征战于一体,立足三国乱世疆场,主打临场指挥战术交锋与宏大团战,在古战场纵横对决,尽享策略博弈与争霸豪情

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$$
Released
Price
$$ · Standard
Players
👥 Not stated

Moddable and Hostable as a server for others to join and adventure, build, or fight. Jump into a new voxel game that is as powerful as it is fun! Experience a new level of detail and special features that keep the game interesting and fun.

$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
89% of 285

Build the ultimate waterpark paradise in this classic tycoon simulation game! Design & customize water slides, pools, and saunas to fulfill your guests' needs. Combine creativity, strategy, and management to make a splash in the world of water parks and become the ultimate Aquapark Tycoon!

If you loved these, you'll love this

$$$
Released
Price
$$$ · Expensive
Players
👥 Up to 2 players
Reviews
77% of 1,256

ZeroSpace is a hybrid sci-fi RTS / RPG game that allows you to play as the commander of The Protectorate, a galactic force dedicated to securing humanity’s place in the galaxy. The Orion sector is locked in a vicious power struggle between many alien factions, ready to fight to the death.

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Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
93% of 2,509

Step into the role of a hands-on mayor and build your town from the ground up. Plan neighborhoods, automate logistics, and grow your community—all while juggling workers, infrastructure, and day-to-day chaos to create your dream town. Play solo for total control, or bring friends for co-op mayhem.

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Free
Released
Price
Free
Players
👥 Up to 4 players
Reviews
0% of 2

A free co-op automation game where you and up to 3 friends grow a living mycelial network across an alien planet. Consume local creatures, build biological production chains, and evolve from a tiny spore into a cosmic entity together.

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
8% of 12

From unfinished ground to multi facility campuses you'll build it all while managing the needs of your demanding customers! Racks, Cluster planning, UPS beeping, Fires, Water intrusion, Insider Threats and more!

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