Doom 3 (v1.3.1) [gog] -

You play as a newly arrived assigned to security. The atmosphere is tense; the base is plagued by mechanical failures, "ghostly" sightings, and a workforce on the edge of a nervous breakdown. Tensions are high between the base administrator, Elliott Swann , and the lead scientist, Dr. Malcolm Betruger , over mysterious experiments conducted in the Delta Labs. The Inciting Incident

: Unlike the "run-and-gun" style of other entries, the DOOM 3 story emphasizes isolation and darkness. DOOM 3 (v1.3.1) [GOG]

: As you fight through the facility, you discover ruins of an ancient Martian civilization that once fought the same demonic forces. They created a weapon called the Soul Cube , which you must recover from Hell to seal the portal. You play as a newly arrived assigned to security