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 471–480 of 3,528 games matching Indie, newest first · updated 13 Oct 2026

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Free
Released
Price
Free
Players
👥 Up to 4 players
Reviews
0% of 2

A free co-op automation game where you and up to 3 friends grow a living mycelial network across an alien planet. Consume local creatures, build biological production chains, and evolve from a tiny spore into a cosmic entity together.

If you loved these, you'll love this

Smoke Town

Crossplay
$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
100% of 9

Experience the high-stakes hustle in a cutthroat multiplayer economic strategy game to clear your $1,000,000 debt. Grow your product, outbid rivals in real-time auctions, and manipulate the Syndicate to rule the district. Can you rise from Street Dealer to Kingpin, or will the heat catch up to you?

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Not stated

A lone wizard against a living microcosm. Auto-cast 25+ spells, dodge thousands of enemies, and level up into a screen-clearing storm — solo or in online co-op. Buttery-smooth and tiny, it runs great even on weak PCs and the Steam Deck.

If you loved these, you'll love this

$
Released
Price
$ · Cheap
Players
👥 Not stated
Reviews
34% of 38

A murder mystery blended with sudoku-style logic and weapons. Explore suspicious rooms, examine weapon evidence, and piece together clues through sharp deduction to reveal the killer. Play alone or work online with up to 4 detectives to solve the case together.

Free
Released
Price
Free
Players
👥 Not stated
Reviews
42% of 121

Sauve le Shérif 4 à 10 joueurs. Deux saloons. Une seule règle : ne fais confiance à personne. Chat vocal en proximité, duels en face-à-face, et un dilemme à chaque tir : pacifier ou abattre.

If you loved these, you'll love this