I was in search of a suitable terrain editor for unity. There was nothing that I really wanted. I wanted to change the texture according to the slope and height. And of course, adding noise... I solved it by writing a rule-based lightweight script since I had done similar things on various platforms before. I used the beautiful and consistent library of https://www.scanslibrary.com/ for textures.

https://www.artstation.com/blogs/emrecancubukcu/QjLz/making-of-fire-steel-game

my github
https://github.com/emrecancubukcu?tab=repositories