
What are some good anime that feature cosmic horror/eldritch themes and villains/entities?
I've been looking for darker, anime series that tackle themes different from the usual Battle Shonen formula. Narratives that aren't about friendship, heroism, rivalry and understanding different perspectives. This is especially true for villains who often end up getting humanized through a tragic backstory that explains their motives in greater detail to the heroes. While these types of antagonists are fitting for lighter narratives, they've become somewhat formulaic throughout the anime industry.
I've been craving more narratives featuring cosmic horror, entity villains who evoke pure dread and despair into the hearts of heroes and allies. Villains who don't care about playing by societal rules, forming genuine connections with their allies and aren't spoonfed to the audience through flashbacks explaining the reasoning behind their motivations for the warped, worldview.
Before you list any recommendations, I've seen anime that feature, darker themes and entities, like Berserk, Made In Abyss, Devilman Crybaby, Dororo remake and Parasyte. If you have any other great recommendations, please list them.