http://www.gamespot.com/pc/action/assassinscreed/index.html

Assassin's Creed features one of the most unique gameworlds ever created: beautiful, memorable, and alive. Every crack and crevasse is filled with gorgeous, subtle details, from astounding visual flourishes to overheard cries for help. But it's more than just a world--it's a fun and exciting action game with a ton of stuff to do and places to explore, rounded out with a complex story that will slowly grab you the more you play. The PC version has a few more issues than its console counterparts, and the keyboard-and-mouse controls strip away some of the smooth magic of exploration. Nevertheless, if you don't mind plugging in a gamepad and have a system that exceeds the system requirements, you'll find the same free-form travels and atmospheric game world that console owners enjoyed last year.