Is it dangerous to use Randonautica for dark, scary intentions?

No, it’s only a tool for you, the user, to experience the world around you. The app is what you make of it. It’s YOUR story. Enjoy the adventure into randomness and create a magical legend. Stay positive! With that being said, of course the app cannot control what you may find. If you choose to use dark intentions, and you find something scary, then that is your decision. An app cannot make frightening things happen, but it may point you towards them if that is your true desire. Be careful what you wish for.