This is a paid asset, but now you can download Future Mecha City 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
Future Mecha City v1.0
Here is a Special Design Future Mecha City. A city like colorful light style where you can make unlimited combinations is waiting for you. With all these parts you can make your own custom city combination.
20 Buildings models, 22 Decals models, 15 Floors models, 28 Props models total 85 City Prop with own Atlas Textures (2048×2048) Albedo, Metallic.
Average Min 5 poly Max 428 poly per House models
Average Min 4 poly Max 119 poly per Prop models
Average Min 1 poly Max 56 poly per Road models