So many people above mentioned Doom and Wolfenstein. My pick is Dangerous Dave in the Haunted Mansion, the overlooked masterpiece by id Software. Oh boy, I was both excited and scared to play it due to gruesome style. The game has two sequels which I love less, I haven't finished those. I guess...
Thanks for the recommendation indeed. I've been playing Black Desert for a while, it looks very beautiful but it's also very repetitive as any Korean rpg.