Help me find a game

!g*mers

I'm looking for a very specific style of game I've been fantasizing about. It's in the dad game, autism simulator genre if I had to guess.

But I'm looking for basically a logistics simulator for a war. Like I want to be laying out railroads, planning production lines, and trying to get the resources to where they are needed at the front. I don't care at all about the planning of actual military operations, political stuff etc. I just want to run logistics, infrastructure, repair damage etc.

Ideally it would work sort of like a colony sim on a larger scale but I'm desperate for anything in this genre. Think HoI4 but way less focus on anything but the logistics.

Does anything like this exist?