Code 1 - Chest - Hint 1

Use the Cloth on the bookshelf you moved.

Code 1 - Chest - Hint 2

Count the number of vertices each shape has.

Code 1 - Chest - Hint 3

The code is 4035867.

Code 2 - S&F - Hint 1

Observe the Mannequin and what he's looking at.

Code 2 - S&F - Hint 2

Use the Screwdriver on the wall the Mannequin is facing.

Code 2 - S&F - Hint 3

In the four-digit combination, the first two digits are what S equals, the last two digits are what F equals.

Wall Image - Hint 1

Doesn't the image look familiar somehow?

Wall Image - Hint 2

This is a map, you are on the bottom right of it.

Wall Image - Hint 3

Use the Translucent Paper to reveal a hidden area.

Code 3 - Exit

Open the menu and look at the Exit Key you hold.

Single Room Escape by AdPro