So the latest patch is causing some grief. For a lot of people this includes an increase in lag and hard crashes as the hours in game stack up. However, this crash is not a time related issue. What is happening is that, the more you save the more the data files start to pile up, particularly files concerning dead animals, uncollected resources, and creature eggs. Every time you save the game throws up more and more files to accomodate these articles. This would explain why some people (those who don't save frequently) don't experience this combined lag and crash-to-desktop until they've logged up to 20+ hours in game, while others (who save quite often) can have problems as early as 5 or less hours into a save. Starting a new save file won't improve the situation as you still have the piles upon piles of data in your folders. Fear not however! There's a temporary fix for what is going on!

For Windows, delete the cellscache and compiledoctreescache folders in Subnautica\SNAppData\SavedGames\slotwhatever and the crashing will stop, at least until you log several more hours of gameplay. Hopefully we'll get a real fix next update.

The only issue with this is that any terraforming done during base building is undone, and that can kill your base. There's a workaround this;

Go into your game, and press f1. There should be a bit of data there. You're looking for something called camera batch # and the numbers should list off similarly to this 12,18,13. Go to your base, and walk around the ENTIRE THING. Hugging the walls and writing down whatever numbers appear, if the numbers don't change that's fine just record what you see. Then, in the folders, delete all the batch data EXCEPT for the files concerning the numbers written down

For MAC users go to your user folder. Open your hidden library (google how to unhide it) / application support / steam / steamapps / common / subnautica then follow the directions of thread.

If you're using Oculus Home instead of Steam.

C:/Users/{username}/AppData/Roaming/Subnautica/SavedGames/

After going to C:/Users/{username}/AppData/Roaming/Subnautica/SavedGames/ and clearing the caches for your save,

you also have to go to C:/ProgramFiles/Oculus/Software/Software/unknown-worlds-subnautica/SNUnmanagedData/Build18

Ignore the autosave folders and just empty the same 2 cache folders here.

FOLLOWING THE PRECURSOR UPDATE(info obtained by the user HELLfire): I can say with 99% certainty that using the fix and resetting the data, it DOES reset the precusor door (atleast it did in my "old" experimental build when i had to do it) But it will also reset the keys you can find, so not a big deal IMO. Same with Aurora. Any datapads will also spawn anew, but since you already got them, nothing will happen when you click on them.

If you need a clarification, feel free to ask. Otherwise, give this a positive rate if you found this useful so people know this is a valid solution to one of the many problems plaguing Subnautica these days!