Online co-op Indie games

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

Showing 1791–1800 of 1,911 games matching Indie · updated 12 Oct 2026

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
39% of 745

PHANTOM GALAXIES™ is an epic sci-fi adventure with thrilling mecha combat. Choose between four distinct Starfighter classes and diverse weapons and gear. Once enemies, the intergalactic empires of humanity band together to battle lawless pirate factions amid war torn space!

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$$
Released
Price
$$ · Standard
Players
👥 Up to 3 players
Reviews
78% of 384

It’s Super Crazy Rhythm Castle, the chaotic rhythm adventure! A puzzling co-op mashup unlike anything you've ever heard. Solo, or with a band of up to three friends … … Can you conquer the castle?

If you loved these, you'll love this

$$
Released
Price
$$ · Standard
Players
👥 Up to 4 players
Reviews
76% of 384

While searching for a new home, an unexpected failure in your ship has left you stranded on a planet surprisingly similar to Earth. Discover a vast open world, hunt for food, develop technologies, and build yourself a new home to survive!

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Up to 4 players
Reviews
94% of 219

The Definitive Political Debating Simulator. A wacky third-person multiplayer arena shooter inspired by Countryball memes - a game encouraging you to smash each others balls until someone finishes victoriously. Now includes an online co-op zombie mode!

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Up to 8 players
Reviews
78% of 14

Can you make it to the top of the Tower of Friendship? Run, jump, climb, fall, and then do it all again. Play by yourself or with your friends. Be nice and lay down to make jumps easier for others, or push each other off when the falls are the highest. But whatever you do, never stop squeebing.

If you loved these, you'll love this

$$
Released
Price
$$ · Standard
Players
👥 Not stated
Reviews
79% of 4,217

Strike Force Heroes is an oldschool arena shooter rebuilt with modern mechanics with full co-operative and PvP online multiplayer. It melds over the top action with epic story-telling in this intense remake of the hit Flash game.

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Free
Released
Price
Free
Players
👥 Not stated
Reviews
67% of 151

A massively multiplayer online role-playing game (MMORPG) developed in GODOT Engine by a group of friends from Argentina. It was inspired by a game created in 1999 called Argentum Online.

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