User blog comment:Cloverfield monster/Why does every single game coming out need to be rated M?/@comment-1187559-20130923011624

Because the most popular games often include adult themes, such as killing humanoids (anything inhuman is often considered fine in terms of rating), swearing, and sometimes nudity. For these reasons most games will receive an M rating. E rated games will commonly be very low on action, such as racing games. I don't think a rating really means anything in terms of people buying it.