Sorry... please accept my humble apologies
Yes, to my great shame the Downfall level editor totally and utterly slipped my mind. I really
ought to check it out. I got so wrapped up in making the game itself I totally forgot about it and when I finished writing it I to be honest I was rather sick of the sight of it having worked on it so intensely.
Anyway I am very interested to hear you've got something in the pipeline and I really look forward to seeing what you've got in mind. (As for design documents, the closest I've ever got is some scrawls on a couple of sides of A4...)