Etrian Mystery Dungeon has been rated by the ESRB for its U.S. release. The ratings board gave the game an “E10+” rating, citing the following descriptors: Alcohol Reference, Fantasy Violence, Language, Mild Blood, Mild Suggestive Themes.
Here’s the full rating summary:
This is a role-playing game in which players lead a group of adventurers on a quest to save a town from a monster invasion. From a top-down perspective, players explore labyrinths and battle various fantasy creatures (e.g., giant insects, dragons, carnivorous plants). Players select moves/attacks from a menu-screen of options; characters are briefly shown attacking enemies with swords, staffs, rifles, and magic spells. During the course of the game, some female characters wear outfits that reveal large amounts of cleavage. The game contains brief references to alcohol (e.g., “No, it’s been a while since I drank that heavily. But you’ll never catch me passed out drunk.”). The words “p*ssed off” and “a*s” appear in dialogue.
Etrian Mystery Dungeon is the first Etrian Odyssey game in while to receive the E10 rating, the other two being Etrian Odyssey II and III. The first Etrian Odyssey was rated “T” (Teen), as were Etrian Odyssey IV and Etrian Odyssey Untold.