I enjoyed space-trading games back in the BBS days, but somehow MMORPG blew those out of the water because people will play 20+ hrs per day and skew the economies into country-sized alliances (`Eve` I'm looking at you). No Man's Sky sort of picked up on that, but it had too much going on. Maybe both of those games were the pinnacle of the genre and I just didn't have the patience, but it seems to me there could be something large-scale that appeals to casual gamers as much as die-hard farmers.