One of the things that I remember as a kid most vividly are learning games. They were never presented to me that way - although they certainly were to my parents! - but I was gaining educational value from the game as I played them. I would spend hours chasing Carmen Sandiego around the world or reading all about Dinosaurs and prehistoric history in 3D Dinosaur Adventures.  These types of games have continued to persist throughout the years, though they've obviously taken many different ...