The four new civilizations share the Southeast Asian architecture and focus heavily on Elephants and strong economies.
The expansion focuses on Southeast Asian civilizations and naval warfare, introducing : age of empires ii rise of the rajas
Here is a comprehensive guide to the expansion, covering the civilizations, the campaigns, and the new mechanics. The four new civilizations share the Southeast Asian
Rise of the Rajas features three campaigns that are generally considered "Classic" style (Standard difficulty is forgiving, but Hard can be tricky). covering the civilizations