Prehistory:

You woke up in a very creepy place, where you are immediately greeted by an unfamiliar voice. He tells you that you need to find parts of the pin code to get out of this place, and he also advises you to avoid him as he is very dangerous. After you find all the parts of the PIN code, you will need to use it in a special room that you will also need to find.

Demo video:

Controls:

W, A, S, D - Move
E - Use

               If you found a bug, then
     write about it in the comments :)