: Intel Core 2 Duo E4400 @ 2.0GHz or AMD Athlon 64 X2 4000+ @ 2.1GHz RAM : 1.5 GB (Windows XP) / 2 GB (Vista / 7)

: Used for faster navigation and ziplining across the city.

: Takes up significantly less room on your hard drive.

: A tower-defense mini-game where you protect Assassin headquarters.

: The CPU must work hard to "unpack" the data, which can take hours.