Games where you control a large complicated war machine

There has been an influx of indie simulation games in development where you are in charge of some large complicated war machine. You have to follow extensive instructions to work the machine including all the nitty gritty details. The setting are something fictional with some kind of fantastical element. I'm not sure what to call this genre but its definitely becoming a thing. Within the next year we are getting IRON NEST: Heavy Turret Simulator, Engine Of Sin, Carcass Clad, and PVKK: Planetenverteidigungskanonenkommandant. Can anyone recommend similar games to tide me over until those come out?