My workers in Flow of War are tireless and uncomplaining, labouring away silently in the face of all adversity. Nonetheless, I can feel their seething irritation when I plant my fortress layout awry. Flow of War is a “classic RTS” with an economic element that mostly runs itself. You conjure a bunch of minions from your town hall, pop down templates for cropfields, forges, wells, and suchlike, and watch as your drudges get on with the building and resource-gathering.