Death stranding where people built structures for other people in the world is one.
Minecraft servers where you gather resources for your friend and put a sign up with a message.
Anything where you can interact with each other but don’t have to be logged in at the same time.
It’s feels to me like how the ancient redditors said reddit worked.
Some servers come closer to reddit like world which copied all the popular subs.
Others are definitely smaller communities, maybe a post or two a day and plenty of discussion.
I feel great about it all so far.