Here is our Cyberpunk Environment Megapack in Unity, with Unique Meshes, a lot of Prefabs for easy use, Merged Building Parts for fewer Drawcalls in your scene, we did our best for optimization since the Project is huge and there are a lot of Assets.
(Since the project is large, it's divided into 2 rar files)
OBJ (OBJ, filesize: 2.31 GB), UNITYPACKAGE (Unity 3D, filesize: 5.31 GB), MAT (mat, filesize: 5.31 GB), FBX (Autodesk FBX, filesize: 2.31 GB)