[james-bcn]

Yep. People have been doing this kind of stuff for computer games for decades. It's actually not that difficult. It's not clear what novel problem is being solved here.

[jsheard]

Yeah but those traditional procgen techniques don't use AI, and this one does use AI. They solved the problem of them not being AI enough for the AI era. AI!

[agravier]

Do you have some particular piece of software or tech demo or game in mind with interesting very large generated 3D worlds?

[NBJack]

Age of Empires got me into tinkering with content generation. The flexible map rules were fantastic in making this possible.

Minecraft is of course the poster child for very large worlds of interest these days.

Dwarf Fortress crafts an entire continent complete with a multi-century history, the results of which you can explore freely in adventure mode.

Most of the recent examples of 3D worlds like the post tend to do it through wave function collapse.

[sirtaj]

Valheim and No Man's Sky are ones I've played recently.

[SiempreViernes]

In Mario 64 there is a staircase you can run up forever, granted it looks the same no matter how long you have Mario run up the stairs, but that certainly fits "big but uninteresting 3d world."

[antonvdi]

Minecraft surely fits those criteria.