Nice shader, really captures the Obra Dinn look. I liked the mix of mechanics: Free response for the names, marking statements false (although I'd like to also be able to mark them True, just as a way of marking for myself what I've verified), and moving things around on the pegboard. I especially like that the pegboard connects clues automatically. I did find the scenes hard to interpret, since the faces all looked so similar and were kind of hard to see.
I think I agree with your own self-assessment that this is a great prototype for a more complicated mystery but that the current story isn't much to write home about. Keep me posted if you make a bigger game with this model!