Hi There!!
This is a 5x5 km terrain for game development, backgrounds and mainly Environments, it has all the masks needed for game terrain or world, also a .fbx mesh. it has two height maps in .raw and .tiff formats, and 10+maks, along with a color map.
my blend file is also included but not all the textures are packed in blend file, because I used some megascan textures in it. which I am not allowed to share. if you wanna use my blend file, just download some new rock and grass textures, replace and replace my image textures in materials.
place the blend file where you placed 001 folder if you use it. I displaced my mountains using geometry nodes, node tree is included as well, and all the controls are in modifiers panel.
here this is a commercial license. but you can also get it in half of the price on my artstation as standard license (and a single commercial use upto 20,000 views). here: https://www.artstation.com/abhaysiddhartha/store