Uhh... It's Doom, and Doom II - Don't ask, just play.
Came across this game as a GOG special, Halloween 2024, and am finally getting around to completing the main story, of which I've got to say that it's a delightfully atmospheric and superbly illustrated game with just the sort of hauntingly mysterious tale that I enjoy and which brilliantly unfolds as one progresses. Not an action game by any stretch, but plenty of puzzles that are within reach of a broad age group, not one for the young ones however, I'm afraid. Though it may be 10 years old now, it's definitely worth visiting, I myself intend on a second playthrough as I'm SURE there were side quests I've missed, and I do so love ghosts and spooky things :D
