Released in 2011, The Sims 3: Pets expansion pack introduces controllable horses, cats, dogs, and various minor pets to the base game. It features the ranching town of Appaloosa Plains, specialized equestrian skills, and unique pet traits, according to The Sims Wiki. For a detailed overview of gameplay mechanics and features, visit The Sims Wiki . The Sims 3: Pets - The Sims Wiki