Leap of Faith
Certain Fathoms in the Earth is the epilogue of The Talos Principle 2] achieved by selecting "We much destroy the Machine" during the final conversation with Athena.
In a cutscene, Prometheus narrates the dissolution of the structures and puzzles created by the Machine, including the Megastructure itself. Then 1k leaves New Jerusalem to wander in nature. He sees a deer and kneels before it.