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. 

Rich setting that could bear a much longer adventure, and well presented in a visual aesthetic that supports the 'feel' of the huge Cathedral/Pyramid structure, Very cool complexity available with the various rooms, hooks, and random encounters. Decoherence mechanic offers an interesting new way to punish players :D

I feel this would benefit from spread out a little more over another page, I know that's not the competition etc, but I would definitely buy this spaced out with a bit more art to show the interiors or maybe what being decohered  does to someone. Good stuff.

Dang, quantum vampire is a cool idea. Evocative descriptions and exciting concepts.

Good integration of mechanics. I liked how different skills conferred bonuses or provided clues. 

I really like how you incorporated scientific concepts into gameplay. Decoherence is great. Being forced to essentially reroll your character as you play is really clever.   

I also liked how you used quantum superpositionality for multiple gameplay mechanics! But for defeating the immortal, I though that the clue may be a little too vague. Maybe instead of "Bullet through the head," it could be "Bullet through its head," since when I first read it, I immediately though it meant bullet through your own head.

You even specced out the ship so players can use it. This is just so good and well thought out.