I read a book like 10 years ago and I don't remember either the title or the author. I only remember that it was about a girl who discovered she was living in a simulated world and there was a brutal twist ending. I've googled it but nothing.
You're probably talking about "The Matrix" or something like that, but if it's an actual novel, what I'd recommend is posting in r/tipofmytongue on Reddit or in the Goodreads forums because there's people there obsessed with finding books exactly like that. You can also try describing more details in Facebook groups dedicated to literature or science fiction books, though remembering stuff from 10 years ago is tricky. If you remember even just a phrase, the color of the cover or what platform you read it on, that would help a ton in getting someone to identify it for you.
Try r/tipofmytongue or Goodreads forums where there are people who specialize in identifying books from vague descriptions like that, and Spanish-language subreddits work pretty well for this too. If you remember more details - roughly what year you read it, whether it was sci-fi or fantasy, if the main character was an adult or a teenager - that helps a ton because simulations and brutal plot twists show up in a lot of novels.
I had something similar happen to me when I was looking up information about bee varieties when I got started with this, so I know how frustrating it is to just have fragments. Try putting specific phrases you remember into Reddit or reading communities like Goodreads, because people there are pretty good at identifying books from vague details. If you remember more things - like whether it was dystopian sci-fi, if something about virtual reality came up specifically, or roughly what year you read it - that's gonna help a lot. You can also try r/whatsthatbook or reader groups on Facebook, they've got users who basically live for finding stuff like that.
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