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 71–80 of 138 games matching Aliens · updated 12 Oct 2026

Filters: Aliens × Clear all
$
Released
Price
$ · Cheap
Players
👥 Up to 4 players
Reviews
100% of 1

Step into the dangerous world of Project0. Your mission is straightforward, follow The Agency's orders and then escape in one piece. Whether you prefer solo play or a cooperative mode for up to 4 players, our semi-procedurally generated world ensures each gameplay is a unique experience.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
70% of 140

Astrumis - Survive Together is an exclusively co-op horror game. One player controls a survivor on an abandoned spaceship and the other the ship itself. They must work together to survive against the mysterious monster.

If you loved these, you'll love this

$$
Released
Price
$$ · Standard
Players
👥 Up to 2 players
Reviews
50% of 141

Space for Sale is an interplanetary, top-down Space Realty management game with a focus on problem-solving and exploration. Played either solo or with a friend, it's up to you to transform wild, uninhabited lands into bustling communities!

If you loved these, you'll love this

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

Step into a futuristic battleground where every decision shapes your destiny. In Eternal League, you'll embark on an epic journey through a fast-paced roguelike RPG that combines customization, strategic combat, and a unique session-based progression system that rewards your skill and creativity.

If you loved these, you'll love this

Free
Released
Price
Free
Players
👥 Not stated
Reviews
76% of 26

Zombiefielders! Your mission is to open portals to attract stronger zombies and evacuate from the field. Work with your manager to reduce operational risks and get paid for completing your contract

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 1–4 players
Reviews
66% of 63

NIKTOPHOBIA - sci-fi horror for 1-4 players. The team arrives at the space station to extract alien bio-samples. Players will use various tools and manipulate the station's energy to get out of trouble together.

If you loved these, you'll love this

$$
Released
Price
$$ · Standard
Players
👥 Up to 4 players
Reviews
100% of 13

You are a genetically enhanced super soldier tasked with defending Earth from an onslaught of alien foes. Blast your way through endless hordes in a conspiracy riddled side scrolling bullet hell adventure and become more dangerous than the truth. Become the Chimera!

If you loved these, you'll love this

Free
Released
Price
Free
Players
👥 Up to 3 players
Reviews
70% of 10

Equip various magitech, perks, and weaponry to fight against hordes of creatures beckoned to remind humanity of their hubris. Fight either alone or alongside up to two friends, and employ advanced tactics to defy the forces of fate.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
84% of 13

Spacepunk Survival is a multiplayer, first-person shooter game where you must survive hordes of deadly aliens in a derelict space station, all of that with beautiful and dark retro aesthetics.

If you loved these, you'll love this

$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
50% of 2,447

Tactical extraction shooter meets immersive survival horror. Play as rival mercenaries fighting for loot, or as alien monsters hunting humans from the shadows. Solo or with friends, experience this unique dark take on asymmetrical PvPvE multiplayer.

If you loved these, you'll love this