Not so much a new game, as a new aspect to current games — I want to have access to NPCs of all sorts under my control (think zerglings in StarCraft, or linebac

Not so much a new game, as a new aspect to current games — I want to have access to NPCs of all sorts under my control (think zerglings in StarCraft, or linebackers in Madden), able to have their behaviors rewritten through a (hopefully) simple script or even some sort of setting of hierarchies of behavior. In addition, having accessible MOO elements undergirding RPG worlds would be a really neat addition. I don't want better graphics — I want more control, the ability to change how aspects of the world (or at least my stuff in the world) functions, and the chance to modify/replace AIs (think about doing this once you've beaten a game you thought was too easy) with plug-in alternates.