Online co-op Building games

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

Showing 281–290 of 577 games matching Building · updated 12 Oct 2026

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$ · Cheap
Players
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Start with 400 gold to build your defenses. Earn more by defeating enemies and use it to place new towers or upgrade existing ones. After wave 15, enemies that reach the end destroy your towers, raising the stakes. Survive as long as possible.

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Released
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$$ · Standard
Players
👥 Not stated

Oikizo is a city-building game. Start by placing your first building and a few citizens, then make your city prosper. The strength of Oikizo lies in the ability to manage a city cooperatively with your friends.

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Released
Price
$ · Cheap
Players
👥 2–8 players
Reviews
0% of 1

GET ALL COUNTRIES! Compete with your FRIENDS. Get Countries, build buildings, hotels on a colorful and live map. Establish your political party and strive to come to power. Be the POLITICAL PARTY that wins with the right policies. INVESTORMANIA, Construction, Politics and more...

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Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
100% of 2

“Survive and rebuild on a mysterious island. Explore diverse biomes, battle zombies, craft, farm, trade, and harness electricity in this open-world sandbox adventure — alone or with friends.”

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Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
86% of 166

Explore quiet liminal spaces that feel familiar, yet strangely wrong. Walk, climb, and swim through five handcrafted stages, then build worlds of your own in a powerful sandbox. Publish them through LIMSCAPERS, visit other creators’ spaces, and explore together in Multiplay Beta.

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Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
87% of 106

A railway-building adventure in an endless, procedurally generated world. Lay tracks, transport passengers and goods, mine resources, and buy unique locomotives. Play solo or with friends and create your ultimate railway network!

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Released
Price
$$ · Standard
Players
👥 1–8 players
Reviews
82% of 5,968

An open-world survival crafting game for 1–8 players, blending intense dungeon crawling and ARPG combat with peaceful farming and creative building. Take on quests and explore a vast, procedurally-generated world full of danger and discovery.

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$$
Released
Price
$$ · Standard
Players
👥 Up to 3 players
Reviews
82% of 1,655

Open a card shop with your friends, you can cooperate in a shop or compete with individual shops on the same street! Collect nice cards with different elements and play card dual with your friends to win their cards from their collection!

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$$
Released
Price
$$ · Standard
Players
👥 1–4 players
Reviews
54% of 376

Thrive: Heavy Lies the Crown is a complex city builder, where the fate of your kingdom hinges on your every decision. Explore this medieval land alone or with friends, make tough moral choices and conquer your foes in RTS combat. Will you struggle to survive, or find the strength to Thrive?

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