The 3DO Rating System was a rating system created by The 3DO Company and used on games released for the 3DO Interactive Multiplayer. The rating system, which went into use in March 1994, uses the following four categories:E - Everyone12 - Guidance for age 12 & under17 - Guidance for age 17 & underAO - Adults OnlyThese ratings would appear on the lower front and back of the packaging, while the back of the packaging also specified what content was present in the game.