This game is truly the best games of this type BF has to offer. The game is designed in a similar fashion to the "Travelogue" games in that you can use your mouse to pan 360 degrees around and zoom in for a close up or zoom out for a larger view. The graphics are clear and stunning. Throughout the course of the game, you begin to feel as if you really ARE in London. I learned so much about the city while playing. The storyline is plausible, there are no long cut scenes that tend to get annoying, the voice acting is relatively good in most cases, fun mini-games and/or puzzles, and the game moves along smoothly. I would highly recommend this game to anyone who enjoys an HO game that is more challenging than finding a cheese grater in the sky.
I have played both Travelogue games (Paris & Rome) and I did not find the graphics as clear as Mystery in London. They were also rather weak on story line. I keep hoping another game of the same caliber as this one will be released soon!