Circle of Blood a.k.a. Broken Sword: The Shadow of the Templars might possibly be the best adventure game ever created.
Gameplay:
Playing this game is extremely entertaining. The story is very suspenseful throughout the whole game. It doesn't matter how many times I play it, it still feels remarkably thrilling every time. Some of the puzzles are quite hard, but that's how a great adventure game should be. Logical thinking will get you far in this game.
Graphics:
The beautifully hand-painted locations are simply astonishing. There have been many times when I have caught myself just staring at the scenery instead of actually playing the game.
Sound:
To put it simple: the right music at the right time. For example, when you walk into a luxurious Parisian hotel, there's a lady playing the piano, and when George gets into serious problems, the music indicates danger.
Value:
As I mentioned earlier, you can play this game over and over again. There are many memorable characters, so when playing the game again, it almost feels like meeting old friends who you haven't seen for a while.
Tilt:
As you can see, I really love this game. I love the whole Broken Sword series, and this game is probably the best game in the series. A true work of art this game is!