You need to copy every folder and file
User/appdata/local/game dev tycoon-steam/
Those folders and files are
Cache
GPUCache
Local Storage
Cookies
Cookies-journal
Also have to copy the folder and file in
C:\program files (x86)\Steam\userdata(your steam number)\239820
The folder and file are
Remote
Remote cache.vdf
I made this topic because I couldn’t find any conclusive way of backing up my files. I heard to back up the filesin local storage and tried that didn’t work. I saw on YouTube going to the remote folder and copying the save slots didn’t work. I tried savingonly the rremote folder and file didn’t work. Then I tried everything in the game dev tycoon folder. Only when I did both did bit save properly. I suck and grammar and punctuations, so maybe someone with more intelligence then I can fix this up, make another topic and staple it. Oh and be sure to take off steam cloud if you haven’t done that yet.