On the surface, the Geneforge series is a solid old-school RPG: plain graphics, D&D-ish battle mechanics, monster-slaying, loot-grabbing... the whole deal. But then you get to the amazingly well-written story that gives you actual narritive control. Choices you make in the game will affect the NPCs and the game ending in a substantial way! The degree of influence of your choices is something I have never seen in any AAA game title. Or, for that matter, anywhere outside of the very best Interactive Fiction games. Must be played to be believed!