Hi Athanasius!
Your save files will be totally intact, even if you totally delete the game folder and re-download it afresh!
However, we strongly recommend downloading and launching the game through the itch software. This way, you will be able to conveniently patch your game whenever a new update is made! (And mind you, we are updating a lot these days)
How far are you in the game, if we may ask? :)
