Window Mode and/or the ability to run this game on one monitor and let it continue to run when surfing the web for example. Right now it pauses when you switch windows. I don’t want to have to watch every second of the production to let it progress forward.
Little “bug” related addition to this; When your screensaver kicks in, the game freezes to a point of no return and has forced to shutdown. I remember when Kerbal Space Program had the same problems