Hands down, Crysis is one of the best looking PC games that I've ever laid eyes upon. Unfortunately, that comes with a hefty price. The game has been the butt of many jokes due to its harsh system requirements, which will force most gamers to buy a completely new PC. That being said, if you do have the hardware to run this puppy, I suggest you do so as soon as possible.
Aside from the outstanding visuals, Crysis also boasts great sound and phenomenal gameplay. Being a big fan of sci-fi, I loved the plot; I don't want to give too much away, but I will say that there are aliens in it. Your character wears a suit that grants him several abilities such as super strenght, super speed, and cloaking, which make for a fantastic and unique gameplay experience. Those with a mighty PC rig have no excuse to not check out Crysis.