? Empty level with size terrain (8.1 sqkm) takes 4,2gb memory(1gb~ with an empty map) (task manager) and a file size of 130mb~. Not to mention that a map that size is about 67.1 million verts. But that’s a ****ing massive map tbh. Kalimdor (WoW) is “only” 8km in height as well. At the end of the day the terrain should only really give you flat areas and act as a base ground. Just go to photoshop with that 8k heightmap and use gaussian blur very liberally and you should be arriving at something it’s meant to be used for.