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 3451–3460 of 3,528 games matching Indie, newest first · updated 13 Oct 2026

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Software Inc.

Deck PlayableCrossplay
$$
Released
Price
$$ · Standard
Players
👥 Up to 3 players
Reviews
94% of 7,605

Construct and design buildings for optimal working conditions. Hire people to design and release software, so you can defeat the simulated competition and take over their businesses. Manage and educate your employees to make sure they are skilled and satisfied with their job.

If you loved these, you'll love this

Free
Released
Price
Free
Players
👥 Not stated
Reviews
88% of 5,422

Battle other 2D stickfigures online while jumping around like a lunatic and getting blown up into smithereens. With over 70 weapons, Boring Man is the most chaotic and hilarious 2D online shooter on the internet.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
51% of 5,702

Medieval Engineers is a sandbox game about engineering, construction and the maintenance of architectural works and mechanical equipment using medieval technology. Players build castles; construct mechanical devices and underground mining. There is an entire planet to explore!

If you loved these, you'll love this

Particula

Deck Playable
−95%
$$
Released
Price
$$ · Standard · On sale −95% until 23 Oct
Players
👥 Up to 3 players
Reviews
70% of 646

Destroy negativity, clear your mind! Particula brings you a new perspective in gaming, helping you to concentrate and relax. A three players co-op tower defense experience with a relaxing soundtrack, smooth visuals and gameplay.

If you loved these, you'll love this

Sentinels of the Multiverse

Deck PlayableCrossplay
$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
92% of 1,205

You've never played a comic book like this! Control a team of heroes battling evil villains across dynamic environments. Play out epic comic book battles come to life in this exciting adaptation of the hit card game.

If you loved these, you'll love this