I reached the oil pump refinery and the factory, watching an irritant alien flying around and lagging the game, then, the game crashed.
The game need a lot of improvements and tutorials. Also, I prefer the old screen, this new one with windows is not good, it lack by occupying the whole screen and disorganizing everything.
Also, the humans need to be priorized for something, because they start one thing, leave it to start another one and never finish anything.