The 3D technology you use in this game is truly impressive. I'm curious about how it was achieved – if you don't mind sharing? I would like to use a similar technique in my game, and I would appreciate it if you could offer some advice.
The game was made with Construct 3 and we started off one of the builtin templates called 3D City (https://editor.construct.net/#open=vehicle-switching). There's not much left of the template in our game, but most of the basic rendering technique is here already.