I think the key distinction is that you have to know and like the people outside the game. I used to have about 8 other people that regularly played Minecraft together and we did some impressively large scale things for a hand full of people with jobs and lives. It was honestly fun to just chat while we're collectively digging a massive tunnel to build a functional rail network. Crack open a cold one with the gang but the cold one is actually a 4 month civil engineering project requiring us to terraform a continent.