<a href="https://en.wikipedia.org/wiki/Entertainment_Software_Rating_Board" class="extiw" title="w:Entertainment Software Rating Board">ESRB</a> "Adults Only 18+" <a href="https://en.wikipedia.org/wiki/Entertainment_Software_Rating_Board#Ratings" class="extiw" title="w:Entertainment Software Rating Board">rating symbol</a>, displayed on the packaging of computer and video games appropriate for audiences over the age of 18. Part of the ESRB Video Game Rating System.
Entertainment Software Rating Board
2008
Extracted from <a rel="nofollow" class="external text" href="http://www.esrb.org/about/news/downloads/ESRB_PTA_Brochure-web_version.pdf"><i>A Parent’s Guide to Video Games, Parental Controls and Online Safety</i></a>.