Co-op games are doing exceedingly well onSteam, with co-op titles making some massive revenues and dominating the sales charts in 2025. A new analysis seems to show thatSteamgamers are eager for experiences they can share with friends.

Steam is a popular gaming platform in general, but it has some perks that make it popular for gaming with friends, too. There’s no fee to play online, andSteam includes features like Remote Play Together, which lets multiple gamers play together with just one copy of a game. The platform’s large selection of indie games seem to have also contributed to this new co-op statistic.

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It’s estimated that Steam has generated $4.1 billion in revenue solely from co-op games in the first half of 2025. The statistics, shared byAlinea Analytics, indicate that this is up 11% from the same period of time the year prior. Co-op games also completely overtook the top 5 sellers on Steam. When looking at copies sold,REPOled the pack with a whopping 16.4 million copies, followed bySchedule 1with 9 M,Peakwith 7 M,Monster Hunter Wildswith 6.3 M, and finallyElden Ring Nightreignwith 2.8 million. The top five new games based on revenue were also all co-op titles.Monster Hunter Wildsled the pack with $380.8 million,Schedule 1with $137 M, followed byREPOwith $128.2 M,Kingdom Come Deliverance 2with $109.1 M, andSplit Fictionwith $104.5 million.

Steam Co-Op Games See Momentous Rise

A look at the platform over the years shows how far co-op games have come in recent times. For example, in the first half of 2018, co-op games only accounted for $1.25 billion of Steam’s earnings. The platform saw slight growth in this regard up until the first half of 2020, which saw just over $1.5 billion. However, by the second half of 2020, that number had shot up past $2 billion, and the first half of 2021 had risen to $2.5 billion. The data indicates thatmajor co-op releasespropelled these numbers, with a notable upswing during the years that games likePhasmophobia,Valheim,It Takes Two,Lethal Company,Baldur’s Gate 3,Helldivers 2, andREPOreleased.

Interestingly, most of the co-op releases responsible for these big numbers haven’t been AAA games. A significant number of them have been indie releases, while others have been AA titles. These games often have lower prices than AAA games, lowering the bar of entry for trying something new with friends, which may play a part in the statistics, especially with gamers' apparent propensity forhoarding games on Steam. While trends can change at any time, it seems like co-op gaming is set to continue growing on the platform for the foreseeable future.