Online co-op Indie games

Every online co-op Indie game on Steam we know of. Add tags, a price band or a review floor to narrow it down.

Showing 1931–1940 of 3,555 games matching Indie, newest first · updated 16 Oct 2026

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
51% of 3,806

WWII Online is a massive, persistent free-to-play MMO FPS driven entirely by players. Fight as Army, Air, or Naval forces and earn Victory Points to access more units. One global server. No scripts. Real outcomes. No zones. Huge world (300,000 km²). ENLIST NOW!

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$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
78% of 76

Let your talent shine when you sing along your favorite songs in this fun party game! A variety of modes let you play with friends or compete against them. An open song format and AI powered editor tools provide boundless possibilites.

$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
79% of 107

Perfect Partner is a party game where 2 players work closely to compete with other penguins! The road to the championship is full of mini-games, win them to collect furniture and decorate your own island! Sometimes your worst enemy is in the same boat!

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
100% of 3

18 Levels of Hells is a time-survival, featuring bullet-hell & roguelite elements, folklore horror & 2D pixel-art, support up to 8 multiplayer online co-op. Players kill monsters, upgrade, unlock new weapon. Boss fights feature challenging rhythm-synchronized patterns.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
100% of 1

Time Knight VS. Zombies is a fast-paced roguelike. Play as a knight who faces traps and armies of extraterrestrial zombies in over 90 levels. Every second counts in this medieval pixel art universe.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 1–4 players
Reviews
0% of 7

In an unknown environment, only this light can bring a little warmth, but the continuous decline of the battery is stripping away my sense of security, I have to escape! A zombie game for 1-4 players. In darkness, players use flashlights to affect zombie behavior, explore, escape and reach the end.

If you loved these, you'll love this

Not listed
Released
Price
Not listed
Players
👥 Not stated

Experience the balanced PvP Battles in a 4vs1 style. Win through collecting souls in a 4vs4 style battle where the person that holds the Warden Soul will turn into a Warden to hunt down the visitor on the other team. There can only be one winner in the war between sides.

If you loved these, you'll love this