If there were to be a category like this, it would have to be split between All Tarot Cards and All Clues, as you cannot obtain all of these collectibles in a single playthrough. Collecting every piece of evidence could also be included in these categories, however. IGN has a complete guide for finding every tarot card, clue, and evidence.

Doesn't matter if it can't be done in a single playthrough, if that's the case then you would do multiple playthroughs in 1 run, that's how the Platinum Trophy runs are done in Until Dawn.

You would have to use an external item tracker as item collection doesn't get carried over. So basically the run would be Prologue-ch10 then prologue to ch3 or chapter select and ch3 again.

I wonder how verifying it would work. For Until Dawn's 100% collectible category you have to look through all of the collectibles after the run, but it'd be awkward to do that for The Quarry

An external item tracker kinda like they have for kh random runs would be best. Although someone would have to make that. Also would be difficult for people on console who do not have a capture card.

For console you would use a new profile and user to do the run, for PC you would just backup and delete your saves.

An external tracker would be useful.

Based on this thread, a possible 100%/All Collectibles category run would look like this: -Full playthrough collecting all clues, evidence, and tarot cards (either go to the Shady Glade to get all clues or the Rocky Road to get all tarot cards). There could also be a requirement for all survivors, like Until Dawn's 100%. You can go as far to require all characters to live (all characters except for Kaylee, Chris, and Silas) *I'm pretty sure you can exit out to the main menu once the credits begin and the game will allow you to select a chapter -Go into chapter select for the completed playthrough and load Chapter 2, choose the path you didn't go down in the playthrough and collect the remaining collectable *From here, you can exit out to main menu once the collectable pop-up appears on the side and the run ends before the menu loads in

This is just an example, but it depends on what the category would actually require