Help, my game won't open!

FantaCat

I tried to open the game today and when I click on the game it doesn't even open up. I've heard of people having problems with getting the game to load but I'm not even getting that far. If I don't touch anything the window for the game won't pop up, and if I do click the screen, a white screen pops up saying that Subnautica isn't working and then windows closes the program. It was working fine yesterday. I don't know what to do.

Noah1955

i made a thread on how to fix it y'know it worked for me this is how make a backup orrrrr right click subnautica on steam click properties click beta click above the code thing click experimental and run subnautica if this does not work for you then i tried