The first time I fell through the map and was stuck in a never ending loop, but it wasn't so bad because I had just saved like 2 minutes before that. This time I hadn't saved in a couple of hours and fell through a wall and now I'm stuck behind a locked door.

There has to be a command or something. I can't see a game like this where there are so many hidden keys and junk not have a way to get unstuck.