A post on NeoGAF shows system specifications for the PC edition of Watch Dogs purportedly posted by Ubisoft before being removed. The point of interest here is word that the game will only support 64-bit operating systems, a first for a AAA game. As stated, such a listing is no longer available, and this is unconfirmed, but is being widely reported as fact. Supporting this is word on DSOGaming that the same 64-bit requirement was listed for Assassin’s Creed IV: Black Flag before those specs were also removed.