SCP-087-B is an anomalous set of intricate halls and stairwells contained and studied by The SCP Foundation. Within SCP-087-B are various entities, some of which are hostile and pose a threat to those who enter. SCP-087-B was first seen in a horror game developed by Joonas "Regalis" Rikkonen, who also created SCP - Containment Breach. It is the sequel to SCP-087.