These can be used in Unreal Engine, or another engine that as alpha brushes to add detailed landscape features, or just as height map data in blender or another modeling tool. Including the models as well. These were all generated using the landscape addon in Blender, with a multiresolution modifier applied to make the details more crisp, no textures have been added. All of the models have had their UVs unwrapped as a projection down from the z axis, so if you want to apply textures to them, you would probably need to unwrap them again