The top left, there's a tablet on the wall. The code is written on that.
Although, I most likely will move them around now that I have more areas available. In addition to "buffing" the machines so they are worth it
Woops got my codes confused. So the mentalitiser code is in the cave where the sewer entrance is. Check the weirdly placed bush in the middle of the room.... :D
Haha. Now the PTSD settles in while you mindlessly click on everything :D
Mwahahahahah :D