The sudan pyramids are also known as the Nubian pyramids built by the ancient Kushite Kingdoms.

They are made of mud brick instead of stone. Over time wind, rain and heat have eroded most of them into shapes that can hardly be recognised as pyramids.

Numerous pyramids have been built at different moments in time and in different places. The Great Pyramids at Giza, which are the most famous Egyptian pyramids, are built near to the modern city of Giza on the west bank of the Nile River. Numerous Nubian pyramids were built in southern Egypt. There are Mayan pyramids in Mexico, Guatemala, and Belize, and numerous other pyramids (such as the Pyramid at the Louvre in Paris).
the built the pyramids in Egypt
P

The Civilization is known as Nubia. The Nubian's developed a system of writing called Meroitic. The Nubian's were similar to the Egyptians because the both irrigated there plants by digging in the Nile river. Some Archaeologists even think that the Egyptians and Nubian's even worship the same gods. The Nubian's even Built Pyramids like the Egyptians.