StingingVelvet: There are other sci-fi RPGs but most of them are very old, sadly. Classic Tolkein-esque fantasy just sells better, for whatever reason. Personally I am baffled by it, but if you cruise an RPG fan site like RPG Codex or RPG Watch you will see people say consistently that they only want a traditional fantasy setting.
Actually, there are a lot of people on RPGwatch that want games from different settings. Steampunk seem to be pretty popular, though personally I would love a good cyberpunk CRPG (and not a shooter/CRPG hybrid)
wolfsite: Agreed, great game that gets a bad rap for some strange reason. Personally I have never had any problems running the game and it has some great characters you can interact with.
I understand why. The game was released in a pretty bad state. It was buggy, the combat mechanics were poorly thought out, the game had some pretty odd animations and the stealth mechanics was not up to par either. Also, until you are out of Saudi Arabia, the game just feels like a bog standard "ME TOO!" game, that had looked a bit too much in the direction of Mass Effect. The only thing the game really has going for it is how it handles choices & consequences, but it handles this really well. I love Alpha Protocol for this very reason, and often praise it, but it is not a perfect game.