AI: THE SOMNIUM FILES

There is a total of 142 Appendix files in the game, for the platinum you only need to unlock 100 of them. These files are explanations on some of the terms used throughout the game. You'll get a good chunk of these through mandatory conversations, but there are some locked behind optional ones. If you're interested in the story enough to exhaust all available conversations you'll get this without a problem, but I'm unsure if you can do the bare minimum to get through the game and get enough of these. If you're skipping through the game I'd suggest still talking to everyone as much as possible and skipping through their dialogue too to ensure you get this. If you do complete all routes without obtaining this trophy, you'll have to go back through the game and talk to everyone until this pops.