> You can do really complex and interesting stuff with procedural generation, even at-scale. You need a large breadth of well-designed rules, and then you need temporal simulation over that breadth. That simulated history is just as important as having a lot of high quality rules when you want to create a living, breathing world. Ultima Ratio Regum is an example of how important this time aspect really is, that a place needs to have a history.

Dwarf Fortress also does an excellent job of this