I usually micro manage all my workers until around 1000AD, by then I usually have too many workers so I just turn order them to Auto-Improve tiles. In my current game, Monarch Pangaea, I noticed that my workers are destroying town tiles (with +2 food +8 gold +1 hammer) and replace them with Farms
I usually forbid workers to change existing improvements but by late industrial age, you get so many new resources and you often have to destroy the old improvements.
So, how do I tell workers to only change existing improvements if it would allow access to a new resources ? I was busy warmongering and conquering 3 civilizations using my new Cavaleries when I noticed that dozens of those cool towns have been turned into stupid farms

I usually forbid workers to change existing improvements but by late industrial age, you get so many new resources and you often have to destroy the old improvements.
So, how do I tell workers to only change existing improvements if it would allow access to a new resources ? I was busy warmongering and conquering 3 civilizations using my new Cavaleries when I noticed that dozens of those cool towns have been turned into stupid farms
