The Chasm is the Keystone Initiative's primary research and suppression center, primarily used in Program Metis. Constructed within a decommissioned subterranean research complex, it houses deep storage for biometric archives, failed subject data, and classified experimentation records. It is believed to be the location where the most invasive procedures—biological, neurological, and pharmacological—are conducted. Access is restricted to a minimal number of internal personnel, and the facility’s existence is not acknowledged in any external materials.