Originally Posted by
Ngazi
The steppes to Han is like Pontus or Parthia to Rome, war spilled into there very frequently but control was fleeting because it was economically too different.
Korea is more like Germania. When expanding, the Han made inroads but it was a province too far and not a major area in times of war. Except Han practices were probably more readily adopted in Korea than Roman practices in Germania.
Parthia and Germania are sure places to include in a Rome game, and so the steppes and Korea are sure places to include in a Han game.
Tibet is like Arabia. All or parts are probably going to be in the game, because it makes the map less odd-shaped, but in play it will largely be that big empty place over there. And maybe even make units take attrition when they move up in altitude.
India I think was only ever in the Alexander campaign. India would fit only in later eras with Buddhism and trade.
The only important map boundary is the west. Variety of factions replacing lost Han influence in the west and some more interesting factions going out further, but the Wei armies were too preoccupied to go very far west.