Overview
This is a checklist, it makes it easier to track the achievements – the ones you’ve gained and the ones you still need to get. It also has a detailed description of how to get every missable achievement without spoiling the story of the game.
The checklist
The checklist is hosted at Google Sheets: [link]. To be able to edit it (tick the boxes), you will have to make a copy of the file: go to File > Make a copy.