Arc System Works and Atlus announced the development of Etrian Mystery Dungeon, a crossover between the Etrian Odyssey series and Mystery Dungeon series.
Etrian Mystery Dungeon was released for the Nintendo 3DS in Japan.
The game was released in North America for the Nintendo 3DS by Atlus.
Etrian Mystery Dungeon was released in Europe for the Nintendo 3DS by Atlus and Deep Silver.
The Labyrinth Explorers Guild is established as an organization for adventurers to explore and map the strange dungeons that appear throughout the land.
Explorers locate and enter the first known labyrinth which sets the precedent for dungeon exploration and mapping missions.
The guild creates a specialized team to investigate labyrinth anomalies and conduct rescue operations for lost adventurers.
A breakthrough in understanding labyrinth magic leads to adventurers being able to share unique skills during dungeon runs.
An expedition goes missing in the deepest and most dangerous labyrinth, prompting a large-scale rescue operation led by the Research and Rescue Squad.
Rare artifacts are uncovered deep within the labyrinths, hinting at an ancient civilization that once used these dungeons for mysterious purposes.
Guild engineers develop a device that greatly improves the ability of adventurers to map labyrinth floors accurately during explorations.
A massive earthquake causes a critical collapse in a labyrinth, cutting off access and forcing the guild to rethink safety protocols for explorers.
Notable adventurers rise through the ranks to become legendary figures in the exploration and defense of labyrinths.
