Knob Goblin encryption key
This is a sheet filled with letters, numbers, and unidentifiable symbols. You start to wonder what it is, then notice the phrase "Knob Goblin encryption key. Do not export." in huge bold letters at the top.
(In-game plural: Knob Goblin encryption keys)
- Required to open the area Cobb's Knob.
- The description refers to Pretty Good Privacy encryption, exporting of which was originally considered illegal in the US.