The goal at the moment is a typical roguelike goal of getting through a number floors. To advance to the next level you press '>' (aka shift+period) while standing on top of the connection to the next level (indicated with '>').
I'm hoping to make it a bit less simple in a bit here. I had to engage in some vicious scope-cutting to make a complete game by the end of the jam.
As for downloading, I think you should be able to download the web version from itch? This is my first time hosting something here. There's also a Linux build of the game I could potentially upload. I can get it working on Windows+Mac as well with a little effort, but I'd need to spend time on it as well as set up a test install since I don't currently have a Windows machine around.