How big is the Co-op market on Steam?

A typical Co-op game sells 603k to 979k copies, and the top decile 4.0M to 6.5M, based on the 713 games SteamSpy lists for the tag (its visible subset). Labeled estimates from review counts, not exact sales.

What Co-op games usually sell on Steam

What Co-op games sell on Steam, shown two ways: a SteamSpy sample of the whole genre, and the Co-op games people have looked up here.

The whole genre, from SteamSpy's sample

A typical game sells

≈ 603k–979k copies

$3.3M–$8.9M after Steam's cut, est.

The top decile

≈ 4.0M–6.5M copies

$21.8M–$58.7M after Steam's cut, est.

Half the reviews in SteamSpy's sample of 713 Co-op games sit with 28 of them.

Based on the 713 Co-op games SteamSpy listed on November 15, 2026. It misses the games that barely sold, so these figures flatter the genre. Games are grouped by the tags players give them, which are applied loosely, so a genre's edges are fuzzy. Copies are SteamSpy estimates from review counts, not exact sales.

The Co-op games gathered on wishvane

Across the 793 Co-op games compared here, a typical one sells ≈ 46k–159k copies (est.), with the biggest of them, HELLDIVERS™ 2, at ≈ 28.9M–46.9M. These are the games people chose to compare, not a sample of the genre, so they run far larger than SteamSpy's figures above.

The Co-op games gathered here span 2005 to 2026, and 159 of them shipped in the last two years.
The biggest Co-op games here share nothing more specific than the genre; individually they lead with Platformer and Comedy.
Across the Co-op games gathered here a typical price is $14.99, and the biggest charge more, around $30.

and 733 more

Building a Co-op game? Games like yours have already shipped in this genre. Add the ones closest to your game to see what it can realistically sell.