How did you lose your save? This usually happens when someone attempts to transfer the game files from one drive to another. Saves are stored in %appdata% not the game's files. So your saves may still be on your old drive.
There may be some v0.18 saves available on discord if you would like to ask there. Someone is usually willing to give away their save.
Any publicly available cheats will not work as they'll get updated as soon as they leak.