National Geographic Challenge!
28 Achievements
PS3
Silks and Spices
Control all 6 Asian Territories in a game of Explorer.
30.3%
How to unlock the Silks and Spices achievement in National Geographic Challenge! - Definitive Guide
HateMe4141
TrueAchievements
TrueAchievements
As with mentioned in the other control based soultions. You must merely have control of each grid piece within that color area. This is easily obtainable whilst playing in hotseat. It is possible to control up to 2 land masses in one game.