In Atomic Heart, one can notice images with an overtly medical theme on the walls. The human body is shown in cross-sections, undergoing various procedures.
Blogger Morgan Dusty wondered where Mundfish could have sourced these images. During his research, he managed to track down the book Crucial Interventions: An Illustrated Treatise on the Principles & Practice of Nineteenth-Century Surgery.
This book (treatise) is dedicated to the evolution of surgery and can be found on Amazon.
Morgan Dusty quotes Galeev (Artem Galeev is called the conceptual mastermind of the universe).
Example of art from Atomic Heart.
A walk through Limbo in Atomic Heart.