For me, these are the six main points that I would like to put in the game:
1.No omniscient characters
2.Managing of the troops before battle
3.Revolts against oppressive leaders
4.Can kill characters:
-To enrage the kingdoms
-To earn the appreciation of the most gross of your kingdom
-Murders in secret to take your opponents without fault (with clear risks)
-etc
5.Generating random characters:
-To replace the dead knights
-Rebel leaders
-Partners
-etc
6.Intrigues:
-Kill the king to achieve his position other
-Different forms of slander
-Betrayals (Partner with the rival kingdom, giving true or false information to allies and rivals, etc)
-etc