The game series is a crossover between the Mystery Dungeon series and the Etrian Odyssey series.
Atlus announced during a livestream event on Tuesday that it is developing Etrian Odyssey X (pronounced “cross”), the latest game in the Etrian Odyssey franchise.
Atlus USA released the game under the title Etrian Odyssey V: Beyond the Myth in North America in October and in Europe in November.
Atlus released the Sekaiju to Fushigi no Dungeon 2 (Etrian Mystery Dungeon 2) game on the Nintendo 3DS in Japan on August 31.