Changing City Names.

You can change city names in game if you edit preferences.txt, right? So if I edit the city name and email the save file to someone else, will the city name be edited on their game, too? I'm doing a play by email campaign, and I want to change city names. Will this work?

You can always change the city name for the start of the campaign and not worry about save games, but of course the person you are playing with would also need to change their install for them to see it as well.

I'm not changing it for the start of the campaign, I'm changing it in the middle.