I still don't understand why the world looks post apocalyptic instead of steampunk future? I you have fire then you can have steam, if you have steam then you can have industry.

Instead of clear skies and cities overrun with plant life...Chicago should look like it did in the 19th century with lots of smokestacks and people covered in soot.

Someone needs to tell the creators that we had an industrial revolution more than a century before we started using electricity.