Any Good Game Demos?

[Jelly]

Don't know how much you guys here are into computers, but does anyone know of any good game demos?

I'm currently playing Rainbow Six: Raven Shield 3.

Anyone know of any good flight-sim demos?

 

[iontrap]

My two favorite demos, not flight sims, are Far Cry and UT 2K4. I have wasted many hours playing these.