Hey guys! so I was playing a play through with 3 friends of mine and by accidentally was saving over the auto-save. I then started my own playthrough on the same profile and overwrote those auto saves. So as a result, we've lost somewhere around 4-6 hours of progress.

Has anyone else experienced this and been able to fix it? Because I've tried using recuva and looking on steam cloud saves to no avail.

If this is not fixable, are there anyways to progress very quickly through the game to reach the point we were at (right before the final boss of Act 1)?