CityGen3D (v1.17)VIP 

With CityGen3D you can have terrain, roads and buildings all generated for you based on real world data from OpenStreetMap!

Select your location from anywhere in the world and let CityGen3D do all the work without any coding required, all from within the Unity Editor.

Key Features

• Worldwide coverage from OpenStreetMap.
• Easy to use interface with no coding required.
• Unified package for the High Definition Render Pipeline (HDRP), Universal Render Pipeline (URP), and Built-In pipeline, with materials and shaders all set up for you on import.
• Import real world terrain heightmaps (-60 to 60 latitude SRTM data).
• Perlin Noise heightmaps.
• 2D map editing functionality for custom map creation.
• Mapbox integration for easily applying satellite imagery onto terrains (Mapbox API key required).
• Automatic generation of roads using a combination of procedural geometry, terrain modifications, and decals.
• Automatic levelling of terrain for roads and buildings.
• Easy to use terrain smoothing.
• Procedural buildings with auto LOD levels.
• Spawning of roadside prefabs such as street lighting.
• Mesh extrusion for features like railways, fences and guard rails.
• Define different biomes to have trees and terrain details automatically applied to terrains.
• Water meshes for oceans and lakes.
• Built-in support for large environments with scene streaming and world origin shifting.
• Some operations multithreaded for faster generation of environments.
• Selection of textures & prefabs included and all setup for demonstration in Unity’s built-in renderer.
• Fully customizable to use your own textures and meshes, so useful for all types of project.
• Call CityGen3D functions from script using the advanced API.
• Integrated with Vegetation Studio Pro.
• Ever expanding documentation that is freely available to view from the website before purchase.

Original_Link: https://assetstore.unity.com/packages/tools/terrain/citygen3d-162468

Download Links:

Asset Version (v1.17)