Because both mods modify the same geographical areas in Romania, they cannot be used together without causing major bugs or map "holes".

Includes the cities of Găești and Titu , as well as the village of Măgura .

Users must choose one; Roextended offers a massive multi-country expansion (Romania, Bulgaria, Ukraine, etc.), while Project Muntenia focuses on high-detail local additions to the existing Black Sea DLC. Installation Notes (v1.39-1.40)

In your mod manager, map add-ons like Project Muntenia should generally be placed below simulation mods but above basic assets.