Online co-op Aliens games

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

Showing 121–130 of 138 games matching Aliens · updated 12 Oct 2026

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
82% of 863

SENTRY is an action-defense first person shooter where you defend your spaceship against invading aliens. Plot an escape route through hostile space and battle the enemy across your vessel with the support of traps, turrets and environmental destruction.

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$$
Released
Price
$$ · Standard
Players
👥 Up to 4 players
Reviews
67% of 40

In Manic Mechanics, up to four players pull on their overalls and head to the auto-obsessed Octane Isle, looking to make a name for themselves as travelling mechanics. Whether played solo or with friends, co-op or versus, Manic Mechanics has plenty of comedic chaos to go around!

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
91% of 146

A multiplayer roguelike about teamwork, survival...and cute animals in space! Play with a few friends or join a streamer's crew of dozens as you work together to battle aliens across the vast Rogue Space.

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
80% of 47

Crash-landed and ill-prepared, you and your friends must build, break, and rebuild to escape. A chaotic co-op puzzler about creativity, comedy, and questionable engineering.

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
65% of 29

Bugs N' Guns is a cooperative third person shooter. Player will need to combine their weapons firepower to eliminate enemies and obstacles as players try to protect a train called MARC - OS from hostile flora and fauna.

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$
Released
Price
$ · Cheap
Players
👥 Up to 8 players
Reviews
56% of 255

THE HIGHRISE is a first-person survival game set in a high-rise building that has been sealed off by an alien monster invasion. Gather resources to make fighting weapons and survival tools. You must find and send a rescue signal at the end of your desperate survival.

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