Here there is a link with an interview to Adam Isgreen, World Edege's founder.
In the last parragraph of age 2, he speaks specifically about the ninja, and the stealth mecanic. I dont know if it is true or not, but sounds true.
https://www.windowscentral.com/gaming/age-of-empires-interview-with-adam-isgreen
In the last parragraph of age 2, he speaks specifically about the ninja, and the stealth mecanic. I dont know if it is true or not, but sounds true.
https://www.windowscentral.com/gaming/age-of-empires-interview-with-adam-isgreen