This is a paid asset, but now you can download Mega Sci-Fi City Pack 2 for FREE, but please remember this package is provided only for learning purposes or to be able to test before buying the product, NOT FOR COMMERCIAL PURPOSES.
Detail this asset from Unity Store: Original Link
Mega Sci-Fi City Pack 2 v3.0
Mega Sci-Fi City Pack 2, is both a sci-fi city buildings 3D model pack and a randomized city generator pack. With 14 unique city objects to mix and match, the Mega Sci-Fi City Pack makes it easy to add a sci-fi themed city to your game. The Randomized City Generator script easily created the city layout for you with ease. Create and add new ‘city block’ prefabs to the random city generator script to increase the randomness and create your own look. The pack contains easy color and material selection options. Also generate Space cities, that can be used as space outposts or as floating cities high about the ground. Includes a easy-to-use editor window that can generate ground or space cites right into your scene.
Try the Webplayer Demo Here!
EASY COLOR CHANGES – 1 MATERIAL FOR GROUND/2 FOR SPACE – UNIQUE CITY BUILDINGS & OBJECTS
– UNIQUE CITY BUILDINGS & OBJECTS
– GENERATE BOTH GROUND AND SPACE BASED CITIES
– EASY-TO-USE RANDOMIZED CITY GENERATOR SCRIPT INCLUDED IN C#
– EASY-TO-USE EDITOR WINDOW TO GENERATE RANDOM CITIES STRAIGHT INTO YOUR GAME SCENE
– DEMO SCENE INCLUDED