Sins of the Fathers (first game): While primitive-looking by today's  standards, this is a surprisngly deep and compelling game.  The characters  convey actual personality (from Gabriel's machismo to Grace's waspishness),  and you can't help but be swept up in this story of voodoo and destiny.  Even the midi music is pretty cool, though it might drive you insane if you  stay in one area too long....