This fucking rips. The decoherence table is the coolest thing I've read in the whole jam so far. Normally I'm not a fan of maps in trifolds, but I think it is completely justified here and adds to the adventure.
My only criticism is the layout. After the title page, the "general mechanics" section makes sense as the starting place to read the rest of the adventure, but it's not in a place that a reader would naturally start at. I would definitely recommend moving that to the other side of the page, as that is where I would expect the orienting material to be. This would also allow you to put the Ruin and the Ship side by side on the same page, which would be much more user friendly imo.