World Machine / Alternates

in 3D
Hello, my project is in 3D and has a very large open-world. It is also multiplayer, so calculations such as whether terrain is passable is done server-side.
Has anyone here gotten World Machine to work with Godot?
I am currently trying out the Hterrain plug-in, but I'm not completely sold on it.
What other world-creation tools have you had success with?