[Someone]

“And finally there is the “take that!” aspect of this game that I find worrying”

I wonder whether introducing a small amount of luck into the game would improve that. For example, in case of a standoff, if (and only if) the attacker rolls a six and the defender rolls a one, let the attacker win, or add a rule that, if two sixes are rolled, a player’s orders in a turn are ignored.

If every player were to have a tiny bit of misfortune in a game, maybe, their mind would put the blame on that and not on the backstabbing that made them lose zillions of encounters (“if only I had won that, I could have convinced X to support me, and…”). I guess players even might put the blame of not winning the game on being too lucky (“if I hadn’t had luck three times in a row, they wouldn’t have cooperated to kick me out of the game”)

It would be difficult or impossible to find just the right amount of luck to add, though.