BBFC: 15

Full Name: British Board of Film Classification/Video Standards Council For Video Games
Country: United Kingdom
Founded: BBFC 1912/VSC 1989

From Wikipedia:

The British Board of Film Classification (BBFC), originally British Board of Film Censors, is a non-governmental organisation, funded by the film industry and responsible for the national classification of films within the United Kingdom. It has a statutory requirement to classify videos, DVDs and some video games under the Video Recordings Act 2010.

15 - Suitable only for those aged 15 and over. Nobody younger than 15 can see a 15 film in a cinema. No-one younger than 15 can rent or buy a 15 rated VHS, DVD, Blu-ray Disc, UMD or game.