The Game is About Exploring

D&D and it's cousins are about exploring. One must explore to find out what/who you have to kill if they can't be conned out of their loot.

Sure there's lots of rules about combat even in the original rules which has monster as mostly lists of combat stats, that's becasue the game wouldn't be as much fun if we spent half an hour shouting "I Killed the Balrog","No you didn't ","Yes I did"...