psparky
King
- Joined
- Feb 24, 2011
- Messages
- 624
The found city button is greyed out if you are to close to an existing city (4 or less tiles away). Though it may be slightly different in BNW....I play G+K....
In my experience 4 tiles away is OK, 3 or less is not allowed (although I play vanilla).
See the screenshot in this post:
http://forums.civfanatics.com/showpost.php?p=13274721&postcount=2823