definitely not necessarily popular kinks but you asked for mine soooo
Kinks: Hypnosis/Mind control/brainwashing, corruption, Netorare, Sissy stuff or autogynephilia, infantilization or ABDL/DDLG (things of that nature).
- - I don’t know if this is in the game but one thing I’d love to see from a game like this is if let’s say you fail a battle, the commander of that army may be captured by the enemies and brainwashed into their loyal slut. Maybe like after a bit they can even be sent back to the player’s court, but they’ll be trying to seditiously to prepare your realm for an invasion by that enemy faction. Maybe multiple commanders that are brainwashed and sent back increases the likelihood of an invasion happening or hurries up their progress. Furthermore if you lose the war, a negotiation tactic for war could be to allow the enemy to enslave some of the women, maybe even some you were romantically involved with and they would be not available for the rest of the game until eventually freed by the player later.