I was going to suggest some written stories until I saw you wanted movies, shows, or games which this definitely isn't. I'll still leave this here though in case anyone else passing through is interested:
Science Fiction
Welcome to /c/ScienceFiction
December book club canceled. Short stories instead!
We are a community for discussing all things Science Fiction. We want this to be a place for members to discuss and share everything they love about Science Fiction, whether that be books, movies, TV shows and more. Please feel free to take part and help our community grow.
- Be civil: disagreements happen, but that doesn’t provide the right to personally insult others.
- Posts or comments that are homophobic, transphobic, racist, sexist, ableist, or advocating violence will be removed.
- Spam, self promotion, trolling, and bots are not allowed
- Put (Spoilers) in the title of your post if you anticipate spoilers.
- Please use spoiler tags whenever commenting a spoiler in a non-spoiler thread.
Annihilation movie, if your into the cosmic horror side of the genre
A very good recommendation. It tows the line very well between being digestible and leaving you with lots of unnerving questions
The inhibitors of the Revelation Space universe of books by Alastair Reynolds are a sort of unknowable, unescapale, and undefeatable force.
A secret force/organization that is seemingly undetectable and unbeatable bad guys that are always one step ahead of the good guys is one of the antagonists of the Pandora Star and Judas Unchained 2 book series from Peter F Hamilton.
The Cube movies fit the bill, both literally and figuratively.
For anime there is Space Battleship Yamato 2199, Gunbuster / Diebuster, Last Exile, Psycho Pass and Aldnoah Zero. That's all I can think of at the moment.
Nice! Going to give some of these a try as well.
The Foundation book series by Isaac Asimov. The Apple+ show might be worth checking but I have heard it deviates from the books greatly, so they might have changed how the antagonists function.
The three body problem. Everytime a bigger revelation happens humanity feels smaller. I’m really excited for the Netflix adaption.
Control
Eldritch horrors, SCP and all the fun stuff rolled into one game. Even the setting is some kind of unknowable entity drawing the protagonist in.
The Magnus Archives! It's an an urban fiction eldritch horror anthology podcast with a fantastic overarching story mostly focusing on what the hell is going on. I can't recommend it enough!
I Have No Mouth and I Must Scream by Harlan Ellison
Wolf 359 Audio Series Podcast