itch.io

Play through the bad end for starters. 

If you've done that, focus there rather than anywhere else.

If you're still struggling, and you've been skim reading, stop. You won't progress like that. If you're still struggling after that, then I don't know how else to help you as it's a core mechanic you should be learning.

As Grizz said; If you play through it at a normal pace then the password will appear somewhere in the text. Just pay attention to what youre reading and look for any suspicious words that could be a clue. As a hint I will tell you that the password has something to do with how they die.