One of the great things about Little Wars is Wells describing the development process in detail, how they added features and rules, how the military types were utterly indecisive during play and so on.
That and some things probably everyone can identify with:
"Primitive attempts to realise the dream were interrupted by a great rustle and chattering of lady visitors. They regarded the objects upon the floor with the empty disdain of their sex for all imaginative things."
Though of course there was the one woman he writes of rather favourably for not being disparaging and taking the photos of their game, not sure if mention of her playing is made, though it would not surprise me that she did.
"It was an easy task for the head of the household to evict his offspring, annex these advantages[gaming room with a cork floor], and set about planning a more realistic country. (I forget what became of the children.)"