Fun game.
The only issue I have is the fact that it's difficult to see behind buildings. You used factorio as an example but I think the camera angle in factorio is higher so it's easy to see everything on the screen.
Even when you make the building transparent, I have a hard time knowing the direction of the conveyor belt.
And I had one map where I wasted time searching for the metal nodes, they were all at the bottom, hidden by the forest. I only found out because I clicked everywere with the gold mine.