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 91–100 of 577 games matching Building · updated 12 Oct 2026

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Free
Released
Price
Free
Players
👥 1–4 players
Reviews
64% of 17

Get your first taste of running a retro Miami vape shop in this 1–4 player co-op simulator prologue. Stock shelves, serve customers, craft custom e-liquids, handle phone and online orders, build your reputation, and lay the foundation for a growing business.

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
81% of 85

Last Breath is a solo/cooperative terraforming survival game. Dig through terrain, build powerful machines, and restore life to a dead planet. Work together to survive, automate, and reshape the world from the ground up, literally.

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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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$
Released
Price
$ · Cheap
Players
👥 Not stated

This is a survival game where you must unveil the story and find your truth. Decide your fate and avoid trouble in the form of military bandits and keep an eye out for those pesky sharks! Explore dimensions, islands and discover civilisations. Good luck!

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Free
Released
Price
Free
Players
👥 Up to 4 players
Reviews
50% of 6

A Dungeon Builder and Crawler Roguelike where you can construct your own dungeon or raid one designed by your friends. Vie for victory, defeat minions, and evade traps as a party of up to 4 Challengers, or create the most diabolical dungeon imaginable as the Dungeon Boss!

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$
Released
Price
$ · Cheap
Players
👥 Up to 6 players
Reviews
0% of 2

A real-time fantasy tower defense where adjacency matters. Master 12 magic schools, blend them through 66 unique synergies, and defend across 21 distinct maps. 144 tower variants, deep upgrade trees, endless wave escalation. Play solo or in online co-op.

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Free
Released
Price
Free
Players
👥 Up to 2 players
Reviews
89% of 132

🐸Free-To-Play🐸 Stop following someone else's route. Create your own way to the top by building your own path 🐸 Frog Climb is a stylized co-op climbing adventure where you must escape from terrariums 🐸 Level up, gain powerful upgrades, and prove that no wall is too high for a frog with a plan 🐸

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$$
Released
Price
$$ · Standard
Players
👥 Up to 20 players

Idle survivor meets shared world. Your Hold produces resources 24/7. Your expeditions push back a fracturing reality. 25 regions. 8,000 zones. One world. Every player matters. Success and failure is shared by your entire region.

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
42% of 7

Survive and evolve in the open world of Oratius. Build, craft, fight creatures, explore hidden locations, ride mounts, and progress from the stone age to modern tech — alone or with friends. Create worlds, complete quests, and uncover the secrets of Mak Survival.

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
38% of 21

Match-3 gameplay meets Wild West adventures in this story-rich puzzle game and city builder. Enjoy casual tile matching and build town landmarks as you restore Colinstown, explore the frontier, and turn a dusty American outpost into a thriving legend.