Looking for UFO / Alien related games

Hello everyone,

I am currently looking for games that are somehow related to UFOs and Aliens. Not games taking place on alien planets (such as Halo or Unreal) but games set in the "real" world, that deal with UFO and Alien phenomena (Invasion, Abduction, Conspiracy Theory etc.). Genre, Platform and Year does not matter, Thanks for your help guys and dolls !

River

XCOM: UFO Defense immediately springs to mind. I loved that game.

It begins withC and ends in S, and the better your graphics card, the better your experience !?

Invasion from Beyond for the PS1.

UFO: Alien Invasion. It is an open source game. And quite good if I may add.

Blacksite: Area 51 is the most up-to date game in that genre, although I think it's been rated poorly.

earth defence force? I think it may be a little bit too futuristic though. Also, there are some x-files games, but they might not be that good.

Do not get Blacksite: Area 51. That game fails in comparison to the ps2/xbox version of Area 51. As for other alien games, I'd suggest getting Destroy All Humans! for the PS2/Xbox.

Alien Shooter: Vengeance. Ultraviolent, Diablo-esque retro shooter. You`ll love it.

Like someone said above, Crysis.

Perfect Dark?

Destroy All Humans