: Traveling rodents can bring back seven unique postcards for Sims to collect and display. Build/Buy and Create-a-Sim (CAS) Items
: Sims can care for and name new pets, including hamsters, rats, pygmy hedgehogs, and miniature bubalus .
: Sims can wear pajamas or robes that match their pets. Cats and dogs can also wear glamorous dresses and hats.
: Sims can play with, feed, and clean their pets' habitats. Rodents also have secret "adventures" overnight, such as rocketship activity or nuclear blasts.
The pack's primary gameplay addition is the return of , which live in interactive habitats.