During the NISA press event, the publisher announced that the first person dungeon-crawler Operation Abyss: New Tokyo Legacy will head to PC-via Steam on March 27.

Originally released on the PS Vita, the game has players explore dungeons and fight monsters in classic first person turn based battles. This is a prequel to Operation Babel: New Tokyo Legacy which NISA will publish in the west for the PS Vita and PC.

Operation Abyss: New Tokyo Legacy places players in the boots of a group of teenage agents who must defend Tokyo from the emerging threat of the “Variants” who’ve come from another dimension to cause a bit of a ruckus and generally do what enemies do.