The engine for this definitely was not built with a level-editor in mind. In fact, a lot of how this game was built was pretty bad. It was my first big project getting back to game development, and looking back on it now, there are so many issues it would take just as long to fix them as it would to completely rebuild the game from scratch. That might be a plan for the future, but for now I couldn't add anything significant like that without completely redoing the whole game.