Violence

King's Quest I

 * Killing the witch gives you points.
 * Killing the troll gives you points.
 * Killing the giant loses points.
 * Killing the dragon loses points.
 * Killing the goat loses points
 * Graham thinks about killing wolf, but realizes its too fast for him.
 * Graham would attempt to kill the ogre, he realizes its way too strong for him.
 * Graham would attempt to kill the dwarf, he realizes its much agile.
 * Graham would attempt to kill the sorcerer, its protected by magic.
 * Graham would attempt to kill the rat, but realizes its much too powerful.
 * Graham would attempt to kill the leprechauns, but realizes they are protected by a magic that prevents him from drawing his weapon

King's Quest II

 * Killing Dracula earns points.
 * Killing the snake loses points.
 * Killing the lion loses points.
 * Killing or letting the fish die does little (must fish again).
 * Graham would like to kill Hagatha, but she's way to powerful for him to push, or...
 * Graham would attempt to kill the Dwarf, but its too agile.
 * Graham would attempt to kill, the wizarz is protected by magic.
 * Graham would kill the wolf, but...

King's Quest III

 * Alexander earns points for killing the dragon.
 * Alexander isn't a violent or treacherous person, and thus refuses to try to kill Manannan in his sleep, and he's much too weak to kill him when he's awake.

King's Quest IV

 * Rosella earns points for killing Hagatha.

King's Quest V

 * Graham earns points for killing Mordack.
 * Graham earns points for killing yeti.

King's Quest VI

 * Alexander earns points for killing Minotaur.
 * Alexander gains points for fighting Abdul Alhazred in combat.

King's Quest VIII

 * Connor kills (or is able to kill) every evil being, so that they will not hurt or kill the innocent in the lands, to free innocents, etc. He is only able to banish Lucreto. It is possible to avoid some combat by running away, or using invisible potions.