This will cover:

• Token Keys
  
• Star Keys
  
• Darkest Key

There are three token keys, one for each theme of the game at release.
These require all 32 tokens, 8 in each level.
Once finished, you are required to solve a 6 digit puzzle using the image and the lobby.



Getting the key only counts for YOU in multiplayer. Not shared.
There are three star keys, one for each theme of the game at release.
These require you to go into a level and stare at a red star for 30 seconds.
Once finished, you get a pop-up saying you got the star key which will appear on the desk in the lobby.



Beat all darkest puzzles

• Look at the symbols on the book in the puzzle.
  
• Go to the bookshelf by the fireplace.
  
• Look at the spine of the books, the symbols on them go to those roman numerals.
  
• Those are your numbers.
  
• Follow the spiral, noting which number is to which book.

469593

• Each piece is assigned a letter and number.
  
• Letter is assigned by the string.
  
• Number is assigned by its row (1 -> 8)
  
• Take note of each pieces color, letter, and row number.
  
• Put these onto a chess board In game or https://lichess.org/editor
  
• Once completed, you will be given two numbers looking at the lines of the two colors.
  7 and 3
  
• Use the signature in the bottom right of the painting: "√AlbusXAter"
  It's Latin! It translates to: √( White x Black )
  
• Put the two numbers you got into the equation
  Sqrt(7x3)

4.58257

Top-down you need to stack a pattern located on each object in the room.
I will not be taking screenshots as the one on the vase is annoying.

Phone : Right of the puzzle at the entrance, is on the side of it.
Vase : Left of the desk, pattern facing you.
Chair : Directly in front of puzzle, on the front side of the chair
Table : Directly in front of fireplace, on the side facing the single chair

Using those, stack them together to reveal the numbers

536275

Walk outside onto the balcony
Take a left, go into the very corner on the left side, away from the wall.
Look for the red dot in the sky, it is shown in the photo below.
Zoom and stare at it for 30 seconds, keeping your pointer on it.

WARNING. You will drop and lose the lens doing this. Complete the level first.

Progress to the point where you unlock the lens.
Walk to the side of the orb that had the star puzzle. Look to the right of it.
Look for the red dot using the lens, it is shown in the photo below, standing on the symbol circled seems to have the best luck getting it.
Zoom and stare at it for 30 seconds, keeping your pointer on it.

Progress to the point where you unlock the rope puzzle.
Back into wedge, furthest right and forward you can go (In with the foliage)
Look for the red dot in the sky, it is shown in the photo below.
Zoom and stare at it for 30 seconds, keeping your pointer on it.

Beat all darkest puzzles. Will open a hatch in front of the obelisk with the key.