Unity is awful, it never saves my game and deleted my progress after it triple saved! This is unacceptable as it was finished and I was about to get beta testers to test before its release! I am very disappointed and hope it can be retrieved. The game was a long time of work and many long nights. I hope someone can help me and retrieve it.
Your Unity project files are managed on your own PC and Unity doesn’t delete them arbitrarily. Also it’s near impossible that they’re irretrievable from the recycle bin if they happen to be deleted. Check your recycle bin if you accidentally deleted the project files. Otherwise you might’ve transferred them to a new location you haven’t opened using the Unity Hub.