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 - Everyone
12 - Guidance for age 12 & under
17 - Guidance for age 17 & under
AO - Adults Only
These 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. This rating system was discontinued after the Entertainment Software Rating Board was established in 1994 and from then on, 3DO games were rated by ESRB. The 3DO rating for each game was designated voluntarily by the game's publisher, in contrast to the ESRB ratings, which were determined independently by the ESRB.