Can you recover project from a packaged game (development)

Hey so I packaged a game and I saw something didn’t work with the multiplayer in it so I tried to fix it and for some reason everything is broken now and I cannot fix it. The autosave is from like a month ago so I have no luck there. I have the game packaged on development so is there anyway I can use that to recover it as project? I have no idea why my thing isin’t working anymore because I made a change, reverted it and it still doesn’t work. If anyone could help please.

is the game in c++ or blueprints?
with c++ you might have a chance of extracting the source code but i’m pretty sure ue4 doesn’t include the .uproject file in a packaged game

You are not going to get your project back from a packaged executable. People would be extracting assets and code form commercial games left, right and centre if that was possible. You have been foolish in not taking regular backups and now you pay the price. Sorry if this sounds unsympathetic but not backing up your work for a month is really asking for trouble.

The question really is why can you not repair or restore your code/blueprints to working order?