That is the soul of Necromunda.
The book is explicitly tied to the terrain set (released alongside it): necromunda halls of the ancientspdf 2021
The Ironhead Squats aren't just visitors on Necromunda; they are the bedrock that keeps the hives thriving. It’s time to head back to the mines and show those Great Houses what real toughness looks like. Are you ready to lead your Prospectors into the Halls of the Ancients That is the soul of Necromunda
The halls are not abandoned; they are guarded by automated systems. At the start of specific rounds, players must roll on an environmental hazard table to see if the security systems trigger. necromunda halls of the ancientspdf 2021