Would you like a Create-A-World?

Maybe not a Create-a-World per se. I tried that in Sims 3 but it was a real palaver because you quite literally had a flat piece of 'ground' and had to put in your own rivers, seas, hills/mountains, roads and that was before you began to think about placing lots! And as someone earlier said, there were sometimes serious routing issues.

I think it was in Sims 2 - but don't quote me on that - if you wanted to create a new neighbourhood/world, every neighbourhood/world in the game was available. They were all empty, just the roads in place. There were no lots, but in the build menu there was a large selection of lot sizes to place and then either build on or place ready built buildings. A huge selection of items were available to fill/decorate the rest of your neighbourhood/world - trees, street furniture, ruins, etc. So you had complete freedom to create a neighbourhood/world as you would like it. You could even give it a name of your choice. To me, that would be a better option than creating the actual geographical world.

The biggest drawback with Sims 4 is there are no blank lots of different sizes. If we had those, we really could customise our worlds.