User blog comment:Cloverfield monster/Why does every single game coming out need to be rated M?/@comment-1187559-20130926035332/@comment-1187559-20130926102847

When a company pitches to a publisher they need to tell them which age rating they believe the game will fall under. Usually this means they'll make the game first, then dictate what age rating it'll be. It's very similar to action movies, they'll always tend to fall under 15-18 due to what they contain more than being built for the 15-18 crowd (however that is their intended audience).