Petz (Dogz and Catz) is a series of games dating back to 1995, in which the player can adopt, raise, care for and breed their own virtual pets. The original Petz has sold over 3 million copies worldwide, and the brand has grown to over 22 million copies since coming under Ubisoft. The player starts at the Adoption Center, where they may choose a dog or cat to adopt of a breed and gender of their choosing. Once they have found a pet they like the user can adopt and name the new puppy or kitten. After around three days (real time) the petz become adults. Adult petz can then breed and have kittens or puppies of their own in Petz 3, Petz 4, and Petz 5 (this was not available in the first two lines). Cross-breeding can create different types of petz, called 'Mixed Breeds'. You may age your Petz by downloading 'Petz A' a program which allows the user to age their pets, change their feeling and force them to mate without The 'Love potion' or having to wait and see.