
Video game series
Etrian Odyssey is a dungeon crawler role-playing video game series. It is primarily developed and published by Atlus and currently owned by Sega. By 2016, the series had sold a combined total of 1.5 million copies worldwide.
Each installment in the series revolves around teams of adventurers who descend into mysterious and highly dangerous ancient labyrinths located throughout the world near tremendous trees, in search of fame, treasure or deciphering the mysteries of the past, including remnants of ancient civilizations.
Source: Wikipedia, available under CC BY-SA.