Player's person may be a child, an adult, or elderly. User can also socialize with other Sims in the neighborhood. Player can make work on a career, build or buy a house, build relationships with other characters, have pets. User must take care of needs of the person, such as hunger, hygiene, energy. Sims 3 is a simulation game where the player creates and controls a character called a Sim, and is able to set challenges.