Firaxis has given us a new Civ6 challenge, this time titled “Know Your Enemy”. You are playing as Wu Zetian along the Northern border of China, trying with Yongle and Qin Shi Huang to keep the Mongols out. This is a custom map with low sea level and sparse resources. You start in the medieval era, and can choose to play on Prince or Emperor difficulty. The deadline is October 16. For more info please check this thread.