It also had two collections that contained multiple of these expansions: The Zookeeper Collection and the Ultimate Collection. It had five expansion packs: Endangered Animals, African Adventure, Marine Mania, and Extinct Animals.
Zoo Tycoon 2 was released in 2004, and was a three-dimensional game for the PC, jumping ahead graphics wise in just three years from the first game. It had two expansion packs, Dinosaur Digs and Marine Mania. The first Zoo Tycoon came out in 2001 and was a flat, pixelated game for the PC.
Gameplay consisted of building zoos and keeping both animals and guests happy. Zoo Tycoon is a video game series consisting of three major titles, not including expansion packs: Zoo Tycoon, Zoo Tycoon 2, and Zoo Tycoon for the Xbox One.