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 241–250 of 464 games matching Base Building · updated 12 Oct 2026

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
68% of 45

东汉末年,天下动荡,群雄并起,在这片风云变幻的乱世中,你将化身一方霸主,自偏安一隅的孤城出发,广揽贤才、经营城政、整军备战、攻城略地。是匡扶汉室,重振中兴?还是割据一方,自立为王?亦或是问鼎中原,君临天下?你的每一次抉择皆可改写这段波澜壮阔的乱世史诗!

$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
74% of 2,410

Embark on a galactic journey in Cubic Odyssey, an open-world adventure where you explore vibrant planets, craft tools, build vehicles, and fight the Red Darkness. Uncover ancient mysteries, and shape a universe full of life, danger, and limitless possibilities!

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$
Released
Price
$ · Cheap
Players
👥 Up to 5 players
Reviews
69% of 732

In iDigging, you’ll balance treasure hunting, home improvement, and the strategy of hiding from curious neighbors and authorities. Upgrade, dig, and create your best life despite all the challenges!

If you loved these, you'll love this

$$
Released
Price
$$ · Standard
Players
👥 1–5 players
Reviews
51% of 292

Embark on a co-op survival journey for 1-5 players through a post-apocalyptic Lovecraftian world! Command and evolve a living, monstrous train, craft weapons, build a mobile base, gain powers, and face the Great Old Ones. Explore an ever-changing world, hold on to your sanity, and ascend to godhood!

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
100% of 19

Survive the pirate island! Craft by day, battle waves of enemies by night in this roguelike survival game. Gather resources, unlock powerful abilities, and upgrade your gear to stand against increasing threats. How long can you last in this relentless fight for survival?

If you loved these, you'll love this

$$
Released
Price
$$ · Standard
Players
👥 Up to 3 players
Reviews
87% of 4,045

It's ten years since the infection started. Long-established settlements are collapsing, one by one, for unknown reasons. Survivors are running to the hills to escape, hoping for safety in remote places. As another refugee, you're here to carve out a new life for yourself - by any means necessary.

If you loved these, you'll love this

Free
Released
Price
Free
Players
👥 Not stated
Reviews
81% of 70

A love letter to old-school browser-based RTS MMOs – with charming nostalgic pixel graphics, a dash of political satire, and tonnes of strategic tension. Build your empire, face off against other players, and take what’s yours in true British imperial style: by dominating the map.

If you loved these, you'll love this

Free
Released
Price
Free
Players
👥 Not stated
Reviews
49% of 5,206

DARKEST DAYS is a zombie shooting RPG set in a post-apocalyptic world devastated by a sudden zombie outbreak. Explore a dark yet captivating open world, build a sanctuary with fellow survivors, grow stronger, and fight for survival.

If you loved these, you'll love this

$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
68% of 607

Dive into the agricultural life with Farm Manager World! Manage your own farm across vibrant global locations, cultivate exotic crops, and build your agribusiness empire. Welcome to sustainable farming at its finest.

If you loved these, you'll love this