Updated September 26, 2024 by Mark Sammut: As the last month did not produce any significant free co-op Steam games, a July 2024 early access project has been added. Spoiler: Starcraft 2 fans ...
There are tons of great co-op games on Steam to choose from ... but it's even better with friends. Players are free to tackle the entirety of Terraria as a coop pair or even in a group.
meaning that its place on this best free Steam games list is more than well earned. Millions of players log in to this online co-op game every day and still manage to discover new things.