Escape Menu "Save and Quit" Option

[Mudbill]

Well, the development environment is installed in your save directory, which on Windows is Documents\Amnesia\Main. If you either delete that folder or certain files inside it, they should regenerate when you start the game and be using the default settings. This will delete your saves too though. If you don't want that, you can pick out a few specific files to delete instead.

If I remember correctly, this includes something along the lines of main_settings.cfg and (within your user folder) a user_settings.cfg. Don't remember if those are the exact names, but it should be similar.