all these titles are part of this series, as well as The Sims 3, considered as the third installment that appeared back in 2009. The Sims Online, The Sims 2, The Sims in the City, Castaway, Stories, Medieval. Ever since the first installment was released in the year 2000, it has sold over 100 million units. The Sims is probably the most successful social simulation saga in video gaming history.