Unlike the other Cauldrons, XI appears to have been rendered unusable due to a natural cave-in. Eclipse cultists have discovered the area and built extensive structures and fortifications in and around the dig site. The central core is still active, and can be overridden.
In order to progress through this Cauldron, the player will have to first do battle with cultists and corrupted machines to progress deeper. Once Aloy overrides the Cauldron, normal machines will be alerted and will breach the encampment to attack both the Eclipse and Aloy. The player will have to fight both the cultists, and Watchers, Ravagers, and Stalkers in order to escape.