A look at the top 10 best-selling games of 2009 would lead you to believe that with the exception of Modern Warfare 2, "family friendly" titles are driving the market. And while it's true that Nintendo dominated the market, the overall trend in 2009 (and even the past five years) is that Mature content was in control.
EEDAR analyst Jesse Divnich explains: "Sales of Mature rated (or 16+ and 18+ PEGI) games remained flat in 2009, which outperformed all other ESRB (and PEGI) ratings which all had sales decline in the double digits. In fact, over the last five years, Mature games have had one of the most stable economies and reinforces a theory that whether a recession or economic boom, the core of our industry has and will continue to remain healthy. The biggest decline among the ESRB/PEGI ratings was in the Teen rated (or +12 PEGI) games."