My fun is the gameplay. Story is nice but not needed for fun. I get into a good story, but the actual gameplay is where the fun is. Beating down baddies, stealthing through undetected, convincing others to see things my way, "paht lewtz," and the process of building my character to excel at whatever I please is just plain addicting. Everything from pen and paper to sandbox to turn based, any RPG can be fun to me.