The Hadal Blacksite
The Hadal Blacksite is a deep-sea underground research facility operated by a shadowy organization. Its exact location is unknown — some believe it is situated in the Mariana Trench or beyond. The facility is dedicated to studying anomalous entities and conducting experiments that push the boundaries of science and ethics.
The facility is divided into multiple zones, each progressively deeper and more dangerous. The deeper you go, the more disturbing the experiments become. Researchers who enter rarely come back the same — if they come back at all.