Etrian Odyssey: Horrors of the Labyrinth

The Labyrinth swallowed all.

Innocents were stranded;
sinners drowned in the depths;
the damned vanished there.

But in due time, the great power was relinquished by Man, and Mother Earth started anew from the ashes of the old world.

It has been almost a month since the brave explorers defeated Etreant, the Guardian of Yggdrasil, but their work is still not yet done. Now, the heroes whose names have forever been etched in history must eliminate the true scourge of the world's misery -- the Yggdrasil Core, Primevil. What they will find, however, are horrors beyond mortal comprehension -- a terrifying stratum that might just be their abattoir.