What obscure/forgotten video-game should be made into a movie?

I really liked Silent Hill as a movie. Not only was it the first time that a video-game made a wonderful transition to the big screen (IMO) but Christophe Gans really did take the material seriously and made a film that respected both the horror and mystery genre.

So, I began wondering what other, lesser, video games might make for good movies. Obviously the video-game universe has to be rich in imagination rather than just being a popular title, is what I mean. Look at Mortal Kombat or House of the Dead for example.

I think that Splatterhouse would make a great movie if it was kept as dark, gory and mysterious as the game. What about you?