Yeretski Metropolitan Development Authority (or YMDA) is a development corporation and agency owned by the Sakarian Government. It was created to embrace and develop the mega city; Mega-Yeretski which is made up of three main cities:
- Yeretski (The capital of Sakaria and the capital of the YMDA)
- Meyraetski (Note; Meyraetski is also developed by Quest Development Corporation)
YMDA also acts as a city government in several cases. (Each city in Mega-Yeretski has it's own city government)
YMDA was formed after the start of construction of Neraetski City.