If using a torrent download, you will first need to download uTorrent.
It features a number of gameplay modes, each with differing limitations, with the exception of Freeform. Zoo Tycoon 2: Ultimate Collection contains the original game, all four official expansions and a new menu theme exclusive to it, similar to Zoo Tycoon: Complete Collection.
Download Zoo Tycoon 2: Ultimate Collection for free on PC – this page will show you how to download and install the full version of Zoo Tycoon 2: Ultimate Collection on PC.