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 81–90 of 464 games matching Base Building · updated 12 Oct 2026

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$$
Released
Price
$$ · Standard
Players
👥 2–4 players
Reviews
77% of 1,223

Fight hordes and defend your Stronghold in a bullet heaven survivor-like with co-op and tower defense. Gain power-ups every level, collect random artifacts from chests and grow stronger to survive, defeat the boss and claim a top spot on the Sineus Arena leaderboards!

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$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
50% of 2

The battle for survival on a deserted island begins. Fight skeleton warriors, build your base, gather loot, and survive. An open-world survival + RPG experience: SYLVA.

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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.

$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
79% of 249

Fend off brutal waves of demonic hordes in this epic fantasy tower defense survivors like! Hack and slash among the action or zoom to strategically control the battlefield. You are the city’s last line of defense, build your base, defend the gate!

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$
Released
Price
$ · Cheap
Players
👥 2–8 players
Reviews
100% of 1

Broken Crown is a fantasy RTS where you build a settlement, gather resources, research powerful upgrades, and command hundreds of units in formation-based battles. Advance troops through five visual tiers, preserve Bronze-to-Gold veterans, and conquer tactical maps shaped by Fog of War.

$
Released
Price
$ · Cheap
Players
👥 Not stated

Bit-Mine Clicker is an incremental mining game where you click to earn BIT, build automatic miners, upgrade your grid, react to changing market prices, and defend your base. Catch helpful bonuses, avoid dangerous traps, unlock talents, and turn a single coin into a powerful BIT empire

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
50% of 6

Grab a pickaxe and stake your claim. Bitroca is a sandbox survival MMO where your machine fuels every swing, every wall, every win. Mine, build, defend, and trade on a living frontier where the power of the players shapes what the world can become.

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$$
Released
Price
$$ · Standard
Players
👥 Up to 4 players
Reviews
69% of 694

Build your base on a moving Machine, travel through biomes with different resources, and prepare for the night when a zombie threat is much higher than during the day. Would you go solo or explore this new world with your best friends?

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
63% of 2,676

The Universe is yours. SpaceCraft is an online space exploration and building game. Explore a vast galaxy of solar systems and planets, mine and craft resources, design and build ships, automate planetary bases and interplanetary logistics, trade and cooperate.

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