Ancient shrine
Ancient structures are large rooms that contain ancient cryptosleep caskets, bug hives and mechanoids.
Rare things and artifacts, such as luciferium, psychic insanity lances or psychic animal pulsers can be found in these buildings.
They can spawn on any map tile, and can sometimes have multiple, or none at all.
Cryptosleep Caskets
Each casket contains a human. The human can be neutral or hostile to the players, and can spawn downed or dead.
All pods in the ancient structure open simultaneously. When done so,
Pod people sometimes come with plasteel, components, and gold.
Having a colonist walk to the walls of the structure will cause this prompt:
"As (Colonist Name) draws near the ancient wall a sense of foreboding overcomes him. (S)He isn't sure why, but (s)he feels this dusty structure may contain great dangers"