Anti-Heros. And I'm not talking 'lone wolf emo warror' types, I'm talking insane 'rape the innocent' badasses. Why the hell do we always have to have ‘fundamentally good’ protagonists. Why can’t we play as ‘The lesser of two evils’? You’ve got to admit; evil is always more fun. And who when playing RPGs wished that they could just kill that overcharging bitch of a shopkeeper and take her goods?
That, and non-linear game play.