Thank you for the feedback. You've given me some good ideas for improvements!
A quest system is a great idea. I thought it would be unnecessary since the story is linear and you only have one quest at a time, but in retrospect there are a few areas where it could help keep track of things.
The beach is supposed to be blocked off by the Captain until you've completed the graveyard, but I double-checked and it appears that I made the Captain's walking range a bit larger than intended.
The graveyard puzzle is a simplified 3x3 lights out puzzle (missing the center light). Hit the blue light on the wall to reset. SPOILER: The simplest solution is to simply toggle each light once.
Please drop back in and let me know what you think of the rest of the game!
Also, I put puzzle solutions in the game's thread here. You'll probably want that for the final puzzle.