Ferret Game

I want information for the creation of a video game in Unity 2D.
The game would be pets, specifically ferrets. That they can "live together" in a house (eat, sleep, play etc), that the house can be decorated with elements (furniture, tapestry, flooring) bought in a store and that there is a Stadium-type minigame where the ferrets can run races.
I provide the designs

The game must be online and with a purchase system for play store