Oh does not need to be a clearing issue, there could be small camps that respawn if players wish, dungeons could have a respawn. I am not saying every single creature. There could be a happy medium for everyone I am sure ^_^ as for where they come from. Imagination my dear friend. Just because you kill three who is to say there is not 10 on the side of the valley? ^_- and empty game is a dead game and that leaves play value low for me anyway. If I want to just clear a game and have it end...well I have other games that do that...and now view them as wasted buys.