A mysterious stone door is hidden within a cave somewhere on the surface of the planet.
Location[]
The stone door can be found deep inside a super alloy cavern within the Dune Desert in the northwest area of the map. The entrance is marked by stone pillars and the door can be opened with a 
Warden's Key.
Description[]
This door is evidently artificial, but entirely unlike the standardized technology of the crashed ships and bunkers found elsewhere on the planet. It appears to have been made by an intelligent alien species that is no longer present on the planet. It is unclear whether the creators of this door abandoned the planet, or went extinct/dormant, long ago.
In the cavern where the door is located, 
Super Alloy and 
storage crates with rare resources can also be found.
Gallery[]
